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Journal articles on the topic 'Plotting position'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

., Murugappan*, Sivaprakasam S., and Mohan3 S. "RANKING OF PLOTTING POSITION FORMULAE IN FREQUENCY ANALYSIS OF ANNUAL AND SEASONAL RAINFALL AT PUDUCHERRY, SOUTH INDIA." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 4, no. 7 (2017): 67–76. https://doi.org/10.5281/zenodo.825021.

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In the frequency analysis of hydrologic data, the frequency of occurrence of the observed distributions is important for the purpose of plotting observed data called the “plotting positions”. An acceptable determination of plotting positions has been a debatable question and has generated a great deal of discussion. Many methods for computing plotting positions have been proposed over the years. In the present study, the performance of nine plotting position formulae namely, Hazen, California, Weibull, Beard, Chegodayev, Blom, Gringorten, Cunnance and Adamowski, in estimating magnitudes of ann

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2

Yu, G. H., and C. C. Huang. "A distribution free plotting position." Stochastic Environmental Research and Risk Assessment 15, no. 6 (2001): 462–76. http://dx.doi.org/10.1007/s004770100083.

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3

Makkonen, Lasse, Matti Pajari, and Maria Tikanmäki. "Discussion on “Plotting positions for fitting distributions and extreme value analysis”." Canadian Journal of Civil Engineering 40, no. 9 (2013): 927–29. http://dx.doi.org/10.1139/cjce-2013-0227.

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Plotting positions are used in the extreme value analysis for many engineering applications. The authors of the discussed paper concluded based on their simulations that distribution dependent plotting position formulae provide a better fit to the underlying cumulative distribution than the distribution free Weibull formula. We show here by Monte Carlo simulations following the theory of probability that the opposite is true, and outline that the criteria used in the comparisons made by the authors of discussed paper are inappropriate. Accordingly, the Weibull formula should be used as the uni

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4

Stefanyshyn, Dmytro Volodymyrovych. "A Design Water Discharge Maxima Forecasting Method Based on Observation Data Using Plotting Position Formulas." Modeling Control and Information Technologies, no. 6 (November 22, 2023): 199–202. http://dx.doi.org/10.31713/mcit.2023.061.

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Plotting position formulas provide a non-parametric means to estimate the observed hydrological data probability distribution. In particular, using a plotting position formula, a plot of the estimated values from a theoretical parametric probability distribution can be compared with the observation data. It allows an examination of the adequacy of the fit provided by parametric probability distributions. However, results of calculating empirical annual probabilities of exceedance observed maxima water discharges show an increase in the divergence between the estimates obtained using the differ

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5

Stefanyshyn, Dmytro V. "Testing a numerically-analytical method for prediction design maxima discharges of floods using plotting position formulas: the river Uzh case, the “Uzhhorod” gauging station data." Environmental safety and natural resources 46, no. 2 (2023): 138–62. http://dx.doi.org/10.32347/2411-4049.2023.2.138-162.

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There are a lot of analytical probability distributions that might be used to predict peak discharges of floods. However, there is no proper theoretical or another similar justification for choosing an appropriate parametric probability distribution to predict peak discharges of floods by using observed data. As a permissible hypothesis, any of recommended probability distributions can be considered providing it meets the given statistical criteria and other considerations for the adequacy of simulation are taken into account. In turn, more than seventeen plotting position formulas have been p

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6

Awodutire, Phillip, Blessing Sasanya, Olohita Ufuoma, and Oluwafemi Samson Balogun. "Parametric modelling of rainfall return periods in south-western Nigeria: Survival analysis approach." F1000Research 11 (January 24, 2022): 83. http://dx.doi.org/10.12688/f1000research.75722.1.

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Background: Rainfall is the main source of water on the earth’s surface. It infiltrates and percolates deep into the soil for groundwater recharge. Rainfall patterns, amounts, durations, and intensities can vary daily, monthly, annually, and spatially. It is therefore important to accurately estimate rainfall return periods, which can be employed in hydraulic design and flood control measures. Methods: This research considered the survival analysis approach for the prediction of rainfall return periods including intensity, and months during which these would occur in south-western Nigeria. Twe

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7

Ologhadien, Itolima. "Study of Unbiased Plotting Position Formulae for the Generalized Extreme Value (GEV) Distribution." European Journal of Engineering and Technology Research 6, no. 4 (2021): 94–99. http://dx.doi.org/10.24018/ejers.2021.6.4.2468.

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The determination of appropriate quantile relations between the magnitude of extreme events and the corresponding exceedance probabilities is a prerequisite for optimum design of hydraulic structures. Various plotting position formulae have been proposed for estimating the exceedance probabilities or recurrence in. In this study, eight plotting position formulae recommended for GEV distribution were used for estimating the exceedance probabilities of annual maximum series of River Niger at Baro, Kouroussa and Shintaku hydrological stations. The performance measures of PPCC, RRMSE, PBIAS, MAE a

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8

Ologhadien, Itolima. "Study of Unbiased Plotting Position Formulae for the Generalized Extreme Value (GEV) Distribution." European Journal of Engineering and Technology Research 6, no. 4 (2021): 94–99. http://dx.doi.org/10.24018/ejeng.2021.6.4.2468.

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The determination of appropriate quantile relations between the magnitude of extreme events and the corresponding exceedance probabilities is a prerequisite for optimum design of hydraulic structures. Various plotting position formulae have been proposed for estimating the exceedance probabilities or recurrence in. In this study, eight plotting position formulae recommended for GEV distribution were used for estimating the exceedance probabilities of annual maximum series of River Niger at Baro, Kouroussa and Shintaku hydrological stations. The performance measures of PPCC, RRMSE, PBIAS, MAE a

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9

Han, Chien-Pai. "Adaptive plotting position and test of normality." Journal of Statistical Computation and Simulation 80, no. 4 (2010): 413–20. http://dx.doi.org/10.1080/00949650802686507.

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10

Makkonen, Lasse. "Bringing Closure to the Plotting Position Controversy." Communications in Statistics - Theory and Methods 37, no. 3 (2008): 460–67. http://dx.doi.org/10.1080/03610920701653094.

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11

Haktanir, Tefaruk. "Probability-Weighted Moments without Plotting Position Formula." Journal of Hydrologic Engineering 1, no. 2 (1996): 89–91. http://dx.doi.org/10.1061/(asce)1084-0699(1996)1:2(89).

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12

Guo, S. L. "Unbiased plotting position formulae for historical floods." Journal of Hydrology 121, no. 1-4 (1990): 45–61. http://dx.doi.org/10.1016/0022-1694(90)90224-l.

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13

Stefanyshyn, Dmytro V. "Forecasting the design maxima water discharges of floods on the Latorica river according to the data of the Mukachevo gauging station using plotting position formulas." Environmental safety and natural resources 51, no. 3 (2024): 123–40. http://dx.doi.org/10.32347/2411-4049.2024.3.123-140.

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This article presents the results of forecasting design maxima discharges on the Latorica River within Mukachevo town based on hydrological observation data at the “Mukachevo” gauging station using plotting position formulas. While solving the task, a novel non-parametric method of forecasting using observation data is applied. The method includes extrapolating the discrepancy (divergence, disagreement) between the estimates of the statistical annual probabilities of exceedance obtained by different plotting position formulas. The task is considered in the frame of the stationarity hypothesis

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14

Kim, Soo-Young, Jun-Haeng Heo, Hong-Joon Shin, and Youn-Woo Kho. "Comparison of Plotting Position Formulas for Gumbel Distribution." Journal of Korea Water Resources Association 42, no. 5 (2009): 365–74. http://dx.doi.org/10.3741/jkwra.2009.42.5.365.

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15

Fuglem, M., G. Parr, and I. J. Jordaan. "Plotting positions for fitting distributions and extreme value analysis." Canadian Journal of Civil Engineering 40, no. 2 (2013): 130–39. http://dx.doi.org/10.1139/cjce-2012-0427.

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Random data are often examined on plotting paper to determine appropriate probability distributions and distribution parameters for extreme-value analyses and other applications. Engineers are not always aware of criteria that have been developed and published for selecting the type of probability paper, nor of the impact that the selection can have on results. Some of the advice available in the literature is inaccurate, so it is important that the basis for using the correct method be clearly demonstrated. In the present paper, it is confirmed using straightforward simulation techniques that

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16

Makkonen, Lasse. "Plotting Positions in Extreme Value Analysis." Journal of Applied Meteorology and Climatology 45, no. 2 (2006): 334–40. http://dx.doi.org/10.1175/jam2349.1.

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Abstract Plotting order-ranked data is a standard technique that is used in estimating the probability of extreme weather events. Typically, observations, say, annual extremes of a period of N years, are ranked in order of magnitude and plotted on probability paper. Some statistical model is then fitted to the order-ranked data by which the return periods of specific extreme events are estimated. A key question in this method is as follows: What is the cumulative probability P that should be associated with the sample of rank m? This issue of the so-called plotting positions has been debated f

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17

Makkonen, Lasse. "Reply." Journal of Applied Meteorology and Climatology 50, no. 1 (2011): 267–70. http://dx.doi.org/10.1175/2010jamc2533.1.

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Abstract This reply addresses the use of order statistics in extreme value analysis. The author has previously proposed in this journal that the distribution-dependent estimators of plotting position in extreme value analysis should be abandoned and replaced by the Weibull formula. It was also demonstrated that the use of the wrong plotting positions has resulted in underestimation of the probability of extreme-weather events. Cook’s comments challenge these developments and defend the previously presented plotting methods. In this reply it is outlined that the Weibull formula provides the exa

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18

Nguyen, Van‐Thanh‐Van, Nophadol In‐na, and Bernard Bobee. "New Plotting‐position Formula For Pearson Type‐III Distribution." Journal of Hydraulic Engineering 115, no. 6 (1989): 709–30. http://dx.doi.org/10.1061/(asce)0733-9429(1989)115:6(709).

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19

De, M. "A new unbiased plotting position formula for Gumbel distribution." Stochastic Environmental Research and Risk Assessment (SERRA) 14, no. 1 (2000): 1–7. http://dx.doi.org/10.1007/s004770050001.

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20

De, M. "A new unbiased plotting position formula for Gumbel distribution." Stochastic Environmental Research and Risk Assessment 14, no. 1 (2000): 0001. http://dx.doi.org/10.1007/s004770050048.

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21

Akawwi, Emad, and Metri Mdanat. "Return Period for the Maximum Daily Rainfall in Eastern Highlands of Jordan Valley." EARTH SCIENCES AND HUMAN CONSTRUCTIONS 2 (May 10, 2022): 131–39. http://dx.doi.org/10.37394/232024.2022.2.16.

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Daily rainfall data for the last 30 years was used in the study area. Various available plotting position formulae were employed to evaluate different return periods. Different statistical analyses of maximum daily rainfall were undertaken. The best-fit curves were the Gumbel and Log-Pearson type III (3LP). As a result, the Xt for the Log-Pearson type III and the Gumbel plotting position, which has the lowest RMSE as the best fit values for the return periods.

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22

Murakami, Sawako, Yukari Nagahiro, Masakazu Shimada, et al. "Effect of Limb Position on Measurements of the Quadriceps Muscle Length/Femoral Length Ratio in Normal Beagle Dogs." Veterinary and Comparative Orthopaedics and Traumatology 33, no. 04 (2020): 279–86. http://dx.doi.org/10.1055/s-0040-1702235.

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Abstract Objectives Dogs with patella alta reportedly have a shorter extensor mechanism than normal dogs. The present study aimed to measure the length of the extensor mechanism and to assess the effect of limb position on the quadriceps muscle length (QML)/femoral bone length (FL) ratio. Study Design Three-dimensional computed tomography images were taken of 12 Beagle dogs. Each dog underwent computed tomographic imaging 24 times with different limb positions. The QML/FL was measured on each image, along with the hip flexion–extension, hip abduction–adduction and stifle flexion–extension angl

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23

Hirsch, Robert M. "Probability plotting position formulas for flood records with historical information." Journal of Hydrology 96, no. 1-4 (1987): 185–99. http://dx.doi.org/10.1016/0022-1694(87)90152-1.

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24

Kim, Sooyoung, Hongjoon Shin, Kyoungwon Joo, and Jun-Haeng Heo. "Development of plotting position for the general extreme value distribution." Journal of Hydrology 475 (December 2012): 259–69. http://dx.doi.org/10.1016/j.jhydrol.2012.09.055.

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25

Hosking, J. R. M., and J. R. Wallis. "A Comparison of Unbiased and Plotting-Position Estimators of L Moments." Water Resources Research 31, no. 8 (1995): 2019–25. http://dx.doi.org/10.1029/95wr01230.

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26

Goel, N. K., and M. De. "Development of unbiased plotting position formula for General Extreme Value distributions." Stochastic Hydrology and Hydraulics 7, no. 1 (1993): 1–13. http://dx.doi.org/10.1007/bf01581563.

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27

In-na, Nophadol, and Van-Thanh-Van Nyuyen. "An unbiased plotting position formula for the general extreme value distribution." Journal of Hydrology 106, no. 3-4 (1989): 193–209. http://dx.doi.org/10.1016/0022-1694(89)90072-3.

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28

Cox, Nicholas J. "Speaking Stata: Quantile–quantile plots, generalized." Stata Journal: Promoting communications on statistics and Stata 24, no. 3 (2024): 514–34. http://dx.doi.org/10.1177/1536867x241276114.

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Quantile-quantile plots in the precise sense of scatterplots showing corresponding quantiles of two variables have long been supported by official command qqplot. That command is generalized here in several ways in a new command, qqplotg. In this article, I explain the major features of qqplotg and give several examples of its use. Themes include the use of quantile-quantile plots to explore the possibilities for working on a transformed scale and the value of plotting difference between quantiles versus mean quantile or plotting position. Various historical and methodological remarks are spri

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29

Pedersen, Egil, Yasuo Arai, and Naoto Sato. "On the Effect of Plotting Performance by the Errors of Pointing Targets in the ARPA System." Journal of Navigation 52, no. 1 (1999): 119–25. http://dx.doi.org/10.1017/s037346339800811x.

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The content of this paper was presented at the International Maritime Association of the Mediterranean, 8th International Congress on Marine Technology in Istanbul, November 1997.The effect of different measurement points on an acquired target is theoretically investigated with respect to the ARPA plotting performance. The target is described by simple geometrical figures and the echo is simplified. The actual measurement position is generally not at the centre of the target. This may cause errors in the standard plotting results. The characteristics of these errors are discussed from a nautic

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30

Lu, Huiqiang, Harumi Sato, and Sergei G. Kazarian. "Visualization of Inter- and Intramolecular Interactions in Poly(3-hydroxybutyrate)/Poly(L-lactic acid) (PHB/PLLA) Blends During Isothermal Melt Crystallization Using Attenuated Total Reflection Fourier Transform infrared (ATR FT-IR) Spectroscopic Imaging." Applied Spectroscopy 75, no. 8 (2021): 980–87. http://dx.doi.org/10.1177/00037028211010216.

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Inter- and intramolecular interactions in multicomponent polymer systems influence their physical and chemical properties significantly and thus have implications on their synthesis and processing. In the present study, chemical images were obtained by plotting the peak position of a spectral band from the data sets generated using in situ attenuated total reflection Fourier transform infrared (ATR FT-IR) spectroscopic imaging. This approach was successfully used to visualize changes in intra- and intermolecular interactions in poly(3-hydroxybutyrate)/poly(L-lactic acid) (PHB/PLLA) blends duri

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31

Shukri Yah, Ahmad, Norlida Md. Nor, Nor Rohashikin, Nor Azam Ramli, Fauziah Ahmad, and Ahmad Zia Ul-Sau. "Determination of the Probability Plotting Position for Type I Extreme Value Distribution." Journal of Applied Sciences 12, no. 14 (2012): 1501–6. http://dx.doi.org/10.3923/jas.2012.1501.1506.

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32

Samat, S. R., and N. Othman. "Plotting Position for Low Flow Frequency Analysis at Jempol River Streamflow Station." IOP Conference Series: Earth and Environmental Science 1140, no. 1 (2023): 012021. http://dx.doi.org/10.1088/1755-1315/1140/1/012021.

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Abstract Low flow frequency analysis is an important technique for calculating the probability of river flow availability during crucial low flow seasons, such as drought. It is also useful to predict the low flow information of a river in volume and frequency for future planning and construction of water resource projects since the low flow has a significant impact on water quality, water supply, and river sustainability conditions. Therefore, this study was performed to determine the low flow frequency analysis of the Jempol River streamflow station using Weibull and Gringorten plotting posi

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Agnew, H. J., R. K. Woolley, and G. Parfitt. "The Navigator's Yeoman." Journal of Navigation 42, no. 2 (1989): 268–77. http://dx.doi.org/10.1017/s0373463300014478.

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This paper is concerned with potential improvements in the way man interacts with machines, maps and charts. Particular motivation comes from the new navigational challenges provided by the increasingly widespread use of electronic position-fixing aids in the marine field. Whilst automatic plotting tables and moving light spots have provided part of the solution in larger ships, much recent investment has been witnessed in the development of ‘electronic chart’-based systems.For a number of practical reasons, among which are the lack of available data bases for these systems and little updating

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34

Forslund, R. R. "The power function as a simple stem profile examination tool." Canadian Journal of Forest Research 21, no. 2 (1991): 193–98. http://dx.doi.org/10.1139/x91-023.

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Formulae are presented for calculating the volume, surface area, centre of gravity, centre of mass, form, taper, and instantaneous slope of the power function. A profile plotting technique is also used that allows visual comparisons between average stem profiles independent of the size and taper of individual stems. The technique is used to demonstrate that the position near 30% of the height from the base of the stem is a position of form stability for volume estimation. Using the paracone profile model (a power function midway between a paraboloid and a cone) with the diameter at the 30% pos

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Rhee, S., and T. Kim. "INVESTIGATION OF 1 : 1,000 SCALE MAP GENERATION BY STEREO PLOTTING USING UAV IMAGES." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W6 (August 24, 2017): 319–24. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w6-319-2017.

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Large scale maps and image mosaics are representative geospatial data that can be extracted from UAV images. Map drawing using UAV images can be performed either by creating orthoimages and digitizing them, or by stereo plotting. While maps generated by digitization may serve the need for geospatial data, many institutions and organizations require map drawing using stereoscopic vision on stereo plotting systems. However, there are several aspects to be checked for UAV images to be utilized for stereo plotting. The first aspect is the accuracy of exterior orientation parameters (EOPs) generate

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Pradhan, Swapna. "McDonald’s India – plotting a winning strategy." Emerald Emerging Markets Case Studies 8, no. 2 (2018): 1–25. http://dx.doi.org/10.1108/eemcs-11-2017-0253.

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Subject area Business strategy. Study level/applicability The case has been written with the objective of enabling the students to understand the dynamics of a rapidly changing emerging market. It is structured for use at a Master-level course and an MBA audience in the subject of Business Strategy. Case overview The case details the growth story of American fast food chain McDonalds in West and South India markets. Westlife Development Limited (WDL) operates McDonald’s chain of quick service restaurants (QSR) in these markets; they entered the markets in the year 1996 and since then have adop

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Cotanont, Thidarat, Chalong Buaphan, and Kamonporn Kromkhun. "Correlation of Outcrop Hydraulic Conductivity with its Aquifer: A Case Study of the Phu Phan Sandstone in Northeast, Thailand." Advanced Materials Research 931-932 (May 2014): 823–28. http://dx.doi.org/10.4028/www.scientific.net/amr.931-932.823.

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Fractured rock aquifers provide the most extensive groundwater resources in Northeast Thailand. The hydraulic conductivity (K) of these aquifers controls the flow of water and is therefore, an essential parameter for groundwater modeling and management. K values may be directly determined by conducting pumping tests at the aquifer or by performing fracture analysis using data acquired from outcrops. The K value at outcrop should be greater than that at aquifer of deeper position due to the effect of aperture reduction by overburden compression. The goal of this study was therefor to find the c

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Rajesh Ranjan. "Optimal Probability Distribution Function and Plotting Position for Annual Maximum Flood in Mahanadi River System, India." Journal of Information Systems Engineering and Management 10, no. 34s (2025): 337–52. https://doi.org/10.52783/jisem.v10i34s.5808.

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In the present work, optimum probability distribution function and plotting position of annual maximum flood series data obtained for Mahanadi River system has been analysed. For the analysis, 25 to 45 years of data obtained from Nineteen gauging stations of Mahanadi river system have been considered. Different commonly used probability distribution functions have been tested for their applicability at all the nineteen gauging stations individually. They are Generalised Extreme Value (GEV), Generalised Pareto (GP), Log-Pearson III (LP III), Normal, Log normal (LN), Log-Logistic (LL), Log-Logis

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Bree, M. A., T. D. Batten, J. M. Vogt, and C. W. Stevens. "Canadian Light Source beam position visualization tool." Journal of Physics: Conference Series 2681, no. 1 (2024): 012004. http://dx.doi.org/10.1088/1742-6596/2681/1/012004.

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Abstract The Canadian Light Source orbit correction system acquires, collates, and publishes storage ring beam centroid position information from 48 beam position monitors (BPMs) at a rate of 1000 samples per second. We present a ”Beam Position Visualization Tool” that computes and displays dynamic Fast Fourier Transforms (FFTs) and Cumulative Power Spectral Densities (CPSDs) for all BPMs in real-time using full resolution data. The computed FFTs and CPSDs can be plotted in various combinations and in waterfall plots that allow visualization of changes over long periods of time. In addition, c

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Kim, Soo-Young, Jun-Haeng Heo, and Min-Young Choi. "Derivation of Plotting Position Formulas Considering the Coefficients of Skewness for the GEV Distribution." Journal of Korea Water Resources Association 44, no. 2 (2011): 85–96. http://dx.doi.org/10.3741/jkwra.2011.44.2.085.

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Last, David, and Christopher Scholefield. "Coordinate Conversion Techniques in Microprocessor-based Receivers for Hyperbolic Radio-navigation Systems." Journal of Navigation 40, no. 1 (1987): 81–95. http://dx.doi.org/10.1017/s0373463300000321.

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Traditional receivers for the low-frequency, hyperbolic radio-navigation systems – Loran-C, Decca Navigator and Omega – are expensive and are operated manually. They either display position fixes in hyperbolic coordinates for plotting by hand on navigation charts printed with hyperbolic overlays or they plot tracks automatically, often on distorted charts. Recently, low-cost receivers have been developed for marine navigation which operate wholly or largely automatically and which display position measurements in geographical coordinates – latitude and longitude – or as headings and distances

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42

HETHERINGTON, P. A., and N. V. SWINDALE. "Receptive field and orientation scatter studied by tetrode recordings in cat area 17." Visual Neuroscience 16, no. 4 (1999): 637–52. http://dx.doi.org/10.1017/s0952523899164046.

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The receptive-field positions and orientation preferences of neurons occupying the same tangential location in visual cortex are thought to be similar but to have an associated random scatter. However, previous estimates of this scatter may have been inflated by the use of subjective plotting methods, sequential recording of single units, and residual eye movements. Here we report measurements of receptive-field position and orientation scatter in cat area 17 made with tetrodes, which were able to simultaneously isolate and record up to 11 nearby neurons (ensembles). We studied 355 units at 72

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Samat, S. R., N. A. F. I. Lewis, and N. Othman. "Low Flow Frequency Analysis at Triang River Streamflow Station." IOP Conference Series: Earth and Environmental Science 1296, no. 1 (2024): 012017. http://dx.doi.org/10.1088/1755-1315/1296/1/012017.

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Abstract Low flow analysis is essential for determining the communities’ water supply. As water supply is a necessity for human daily survival, it is crucial to recognize that the availability of water can have a significant impact on local livelihoods and the sustainability of local populations. Triang River is a tributary of the Pahang River in Peninsular Malaysia. The existence of the Triang Water Intake and Treatment Plant along the Triang River stream serves to determine the low flow magnitudes and frequency curves for the Triang River streamflow station using the Weibull, Gringorten, and

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Jay, M. F., and D. L. Sparks. "Sensorimotor integration in the primate superior colliculus. II. Coordinates of auditory signals." Journal of Neurophysiology 57, no. 1 (1987): 35–55. http://dx.doi.org/10.1152/jn.1987.57.1.35.

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Based on the findings of the preceding paper, it is known that auditory and visual signals have been translated into common coordinates at the level of the superior colliculus (SC) and share a motor circuit involved in the generation of saccadic eye movements. It is not known, however, whether the translation of sensory signals into motor coordinates occurs prior to or within the SC. Nor is it known in what coordinates auditory signals observed in the SC are encoded. The present experiment tested two alternative hypotheses concerning the frame of reference of auditory signals found in the deep

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Joo, Kyungwon, Ju-Young Shin, and Jun-Haeng Heo. "Modified Maximum Pseudo Likelihood Method of Copula Parameter Estimation for Skewed Hydrometeorological Data." Water 12, no. 4 (2020): 1182. http://dx.doi.org/10.3390/w12041182.

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For multivariate frequency analysis of hydrometeorological data, the copula model is commonly used to construct joint probability distribution due to its flexibility and simplicity. The Maximum Pseudo-Likelihood (MPL) method is one of the most widely used methods for fitting a copula model. The MPL method was derived from the Weibull plotting position formula assuming a uniform distribution. Because extreme hydrometeorological data are often positively skewed, capacity of the MPL method may not be fully utilized. This study proposes the modified MPL (MMPL) method to improve the MPL method by t

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Agbede, O. A., and Oluwatobi Aiyelokun. "Establishment of a Stochastic Model for Sustainable Economic Flood Management in Yewa Sub-Basin, Southwest Nigeria." Civil Engineering Journal 2, no. 12 (2016): 646–55. http://dx.doi.org/10.28991/cej-2016-00000065.

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Of all natural disasters, floods have been considered to have the greatest potential damage. The magnitude of economic damages and number of people affected by flooding have recently increased globally due to climate change. This study was based on the establishment of a stochastic model for reducing economic floods risk in Yewa sub-basin, by fitting maximum annual instantaneous discharge into four probability distributions. Daily discharge of River Yewa gauged at Ijaka-Oke was used to establish a rating curve for the sub-basin, while return periods of instantaneous peak floods were computed u

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Hamdi, Yasser. "Frequency analysis of droughts using historical information – new approach for probability plotting position: deceedance probability." International Journal of Global Warming 3, no. 1/2 (2011): 203. http://dx.doi.org/10.1504/ijgw.2011.038380.

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Andjelkovic, Zoran, Desimir Mladenovic, Zoran Vukasinovic, et al. "Contribution to the method for determining femoral neck axis." Srpski arhiv za celokupno lekarstvo 142, no. 3-4 (2014): 178–83. http://dx.doi.org/10.2298/sarh1404178a.

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Introduction. Femoral neck axis plotting is of great significance in measuring parameters that define femoral head-neck junction sphericity in the group of patients with the femoroacetabular impingement. Literature methods of femoral neck axis determination have weaknesses associated with the risk of obtaining inaccurate values of certain parameters. Objective. Method of plotting of the femoral neck axis by two parallel lines that belong to the medial quarter of the femoral neck is proposed. Method was tested on the anatomic specimens and the respective radiograms. Methods. A total of 31 anato

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Bimler, David, and Mari Uusküla. "Two Indices Are Better than One: Building on Robbins, Nolan, and Chen (2017)." Field Methods 33, no. 1 (2020): 42–51. http://dx.doi.org/10.1177/1525822x20945063.

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When informants from a given culture are asked to list items from a specified semantic domain, their lists provide two indicators of each term’s prominence or salience: its frequency of appearance across lists and its mean position within the lists that include it. Smith et al. (1995), Sutrop (2001), and most recently Robbins et al. (2017) have defined salience measures that combine these two sources of information. We argue that although frequency and mean position are correlated, the association between them is not perfect and not linear. Plotting them as separate axes of a scatterplot can b

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Chase, T. R., A. G. Erdman, and D. R. Riley. "Improved Centerpoint Curve Generation Techniques for Four-Precision Position Synthesis Using the Complex Number Approach." Journal of Mechanisms, Transmissions, and Automation in Design 107, no. 3 (1985): 370–76. http://dx.doi.org/10.1115/1.3260724.

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A method for predetermining the properties of a centerpoint curve of the Burmester curve pair which will result from an arbitrary set of four precision positions is introduced. The method is based on the discovery that the shape of any Burmester curve is dependent on the Grashof type of the associated compatibility linkage. Three improvements over the existing theory result. First, the exact range of the independent parameter which will generate solution dyads may be determined, eliminating the need to search for solutions on a trial-and-error basis. Second, the composition of the centerpoint

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