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Combined display of all available logs of ShotStat. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).
- 18:44, 9 January 2024 David (talk | contribs) deleted page Mean Radius (Abandoned draft)
- 18:41, 9 January 2024 David (talk | contribs) deleted page Figure of Merit (Abandoned draft)
- 16:23, 20 November 2023 David (talk | contribs) uploaded File:Ellipse50CEP.png (50% covering ellipse for gun with sigma(x, y) = (3, 1))
- 13:30, 26 July 2023 David (talk | contribs) uploaded a new version of File:RangeStatistics.png (Corrected Extreme Spread values)
- 13:20, 26 July 2023 David (talk | contribs) uploaded a new version of File:SymmetricBivariateSigma1.xls (Fixed Extreme Spread Mean and StDev)
- 14:16, 2 June 2023 David (talk | contribs) uploaded File:Gammon 2017 Shot Group Statistics.pdf (MARCORSYSCOM report by W. J. Gammon: "Shot Group Statistics for Small Arms Applications")
- 14:45, 30 May 2023 David (talk | contribs) uploaded File:10-shotOrderStatistics1.png (Sample target and calculation of sigma from order statistics on 10-shot group.)
- 21:27, 22 May 2023 David (talk | contribs) uploaded File:SighterGroup1.png (Sight alignment example with three shots.)
- 21:26, 22 May 2023 David (talk | contribs) uploaded File:SighterGroup2.png (Sight alignment simulation with 6 shots from sigma=1, mu=0.)
- 21:26, 22 May 2023 David (talk | contribs) uploaded File:SighterGroup3.png (Sight alignment simulation with 9 shots from sigma=1, mu=0.)
- 21:24, 22 May 2023 David (talk | contribs) uploaded File:SighterGroup4.png (Sight alignment simulation with 19 shots from sigma=1, mu=0.)
- 18:13, 18 May 2023 David (talk | contribs) uploaded a new version of File:Precision v Accuracy.png
- 18:12, 18 May 2023 David (talk | contribs) uploaded a new version of File:PrecisionVsAccuracy.png (Reverted to version as of 13:14, 18 November 2013 (EST))
- 18:11, 18 May 2023 David (talk | contribs) uploaded File:Precision v Accuracy.png
- 18:09, 18 May 2023 David (talk | contribs) uploaded a new version of File:PrecisionVsAccuracy.png
- 11:05, 16 May 2023 David (talk | contribs) uploaded File:Order Statistics of Exponential Distribution in Censored Samples.pdf (A. K. Md. Ehsanes Saleh. (1967). "Determination of the Exact Optimum Order Statistics for Estimating the Parameters of the Exponential Distribution from Censored Samples." Technometrics, 9(2), 279–292. https://doi.org/10.2307/1266424)
- 17:04, 15 May 2023 David (talk | contribs) uploaded File:Simplified Estimates for the Exponential Distribution.pdf (Sarhan, A. E., Greenberg, B. G., & Ogawa, J. (1963). Simplified Estimates for the Exponential Distribution. The Annals of Mathematical Statistics, 34(1), 102–116.)
- 13:00, 30 May 2017 David (talk | contribs) uploaded a new version of File:BallisticAccuracyClassification.xlsx (Converted to generalized sigma estimation formula for Independent Groups.)
- 14:56, 26 May 2017 David (talk | contribs) uploaded a new version of File:BallisticAccuracyClassification.xlsx (Updated with calculations for both Overlaid Samples and Independent Groups.)
- 13:57, 21 March 2017 David (talk | contribs) uploaded a new version of File:1000Shots.png
- 21:13, 20 March 2017 David (talk | contribs) uploaded File:1000Shots.png (1000 symmetric bivariate normal shots)
- 18:47, 15 March 2017 David (talk | contribs) uploaded File:HBNfired.jpg (Micrograph of a fired copper-jacketed bullet that was impact-plated with hBN (which appears in black). Shown is the beginning of one groove at the bullet's ogive.)
- 18:46, 15 March 2017 David (talk | contribs) uploaded File:UncoatedFired.jpg (Micrograph of a fired copper-jacketed bullet. Shown is the beginning of one groove at the bullet's ogive.)
- 14:43, 13 March 2017 David (talk | contribs) uploaded File:BallisticAccuracyClassification.xlsx (Sample calculation of Ballistic Accuracy Classification based on three 10-shot groups.)
- 20:51, 1 January 2017 User account Ben (talk | contribs) was created by David (talk | contribs) and password was sent by email
- 21:04, 7 June 2016 Louis (talk | contribs) uploaded a new version of File:Ex0-1.png (Marked worst shots with red triangles)
- 20:02, 6 June 2016 Louis (talk | contribs) uploaded File:Ex2-1.png (Monte-Carlo results of excluding worst shot (contaminated normal))
- 20:01, 6 June 2016 Louis (talk | contribs) uploaded File:Ex1-1.png (Monte-Carlo results of excluding worst shot)
- 19:55, 6 June 2016 Louis (talk | contribs) uploaded File:Ex0-1.png (Examples)
- 09:32, 5 June 2016 Louis (talk | contribs) uploaded File:OrderStatisticsFig10.png (Order statistics examples, ten shots in group)
- 09:31, 5 June 2016 Louis (talk | contribs) uploaded File:OrderStatisticsFig5.png (Order statistics examples, five shot in group)
- 09:31, 5 June 2016 Louis (talk | contribs) uploaded File:OrderStatisticsFig3.png (Order statistics examples, three shots in group)
- 09:30, 5 June 2016 Louis (talk | contribs) uploaded File:OrderStatisticsFig1.png (Order statistics examples, one shot in group)
- 21:55, 31 May 2016 User account Louis (talk | contribs) was created by David (talk | contribs) and password was sent by email
- 12:34, 29 February 2016 User account Jeroen (talk | contribs) was created by David (talk | contribs) and password was sent by email
- 10:51, 18 December 2015 Armadillo (talk | contribs) uploaded a new version of File:Bivariate.png
- 05:49, 11 December 2015 Armadillo (talk | contribs) uploaded a new version of File:RadialErrorDistributions.jpg
- 05:42, 11 December 2015 Armadillo (talk | contribs) uploaded a new version of File:RadialErrorDistributions.jpg
- 11:38, 18 November 2015 David (talk | contribs) uploaded a new version of File:300BLK 220gr Factory Subsonic 100yd.xlsx (Corrected rank adjustment plot.)
- 22:26, 11 June 2015 Herb (talk | contribs) moved page Dispersion Classifications to Projectile Dispersion Classifications (think this is finally right focus, sorry for all the !@#$%^& name changes...)
- 19:20, 11 June 2015 Herb (talk | contribs) moved page Dispersion Assumptions to Dispersion Classifications (better name for notion)
- 18:30, 11 June 2015 Herb (talk | contribs) uploaded File:Rice.jpg (Rice distribution for distances to POA. Shots circular about COI, but each shot measured to offset POA.)
- 16:15, 11 June 2015 Herb (talk | contribs) uploaded File:Hoyt.jpg (Shows distribution of shots around COI <math>\sigma_h \neq \sigma_v\text{, } \rho \neq 0<math)
- 01:32, 11 June 2015 Herb (talk | contribs) uploaded File:800px-Anscombe's quartet 3.png (The four sets of points, [http://en.wikipedia.org/wiki/Anscombe%27s_quartet Anscombe's quartet}, have the same fit line and the same coreelation coefficient. Image from Wikipedia. http://en.wikipedia.org/wiki/File:Anscombe%27s_quartet_3.svg)
- 19:00, 9 June 2015 Herb (talk | contribs) uploaded File:Correlation coefficient.png (some examples of correlation coefficients. Image from Wikipedia. http://en.wikipedia.org/wiki/File:Correlation_coefficient.png)
- 18:13, 9 June 2015 Herb (talk | contribs) uploaded File:Linear least squares example.png (modified from wikipedia file. The data is the set of points marked by red dots. Blue line is least squares fit line. "Residuals" to fit shown in green.)
- 18:06, 9 June 2015 Herb (talk | contribs) uploaded File:800px-Linear regression.png (from wikipedia... http://commons.wikimedia.org/wiki/File:Linear_regression.svg)
- 20:27, 8 June 2015 Herb (talk | contribs) uploaded File:Covering circle.jpg (Red circles have a radius equal to the distance between A and B. Points in green region are: * Outside circle that has AB as a diameter * Closer to A than B * Closer to B than A)
- 16:16, 8 June 2015 Herb (talk | contribs) uploaded File:Raleigh.jpg (Shot a radial shot pattern around the COI. Ideally the COI would be at the POA.)
- 01:23, 6 June 2015 Herb (talk | contribs) uploaded File:Bullseye.jpg (Used as a warning symbol in upper left of "table" used to outline the point.)
- 11:18, 28 May 2015 Herb (talk | contribs) moved page Main Page to Home (to agree with index)
- 11:18, 28 May 2015 Herb (talk | contribs) moved page Talk:Main Page to Talk:Home (to agree with index)
- 17:51, 27 May 2015 Herb (talk | contribs) moved page Modeling Dispersion to Dispersion Assumptions (in stat tests the underpinning considerations are "assumptions")
- 16:02, 22 April 2015 David (talk | contribs) moved page Measuring Precision to Precision Models without leaving a redirect
- 16:02, 22 April 2015 David (talk | contribs) moved page Talk:Measuring Precision to Talk:Precision Models without leaving a redirect
- 20:15, 19 April 2015 User account Herb (talk | contribs) was created by David (talk | contribs) and password was sent by email
- 18:04, 30 November 2014 David (talk | contribs) uploaded a new version of File:Sigma1ShotStatistics.ods
- 18:04, 30 November 2014 David (talk | contribs) uploaded a new version of File:SymmetricBivariate.c
- 16:20, 30 November 2014 David (talk | contribs) uploaded a new version of File:SymBiSampleRanges.c
- 16:19, 30 November 2014 David (talk | contribs) uploaded a new version of File:Sigma1RangeStatistics.xls
- 16:19, 30 November 2014 David (talk | contribs) uploaded a new version of File:RangeStatisticEstimation.xls
- 15:25, 30 November 2014 David (talk | contribs) uploaded a new version of File:Extreme Spread Quantiles.xlsx
- 15:24, 30 November 2014 David (talk | contribs) uploaded a new version of File:ES Quantiles.c
- 05:09, 2 August 2014 Armadillo (talk | contribs) uploaded File:RadialErrorDistributions.jpg (Distributions of xy-coordinates and the resulting radial error)
- 18:54, 2 June 2014 David (talk | contribs) uploaded a new version of File:DanielsonExample.xlsx (Small error fix.)
- 11:43, 25 May 2014 David (talk | contribs) uploaded a new version of File:RangeStatisticEstimation.xls (Added Relative Efficiency.)
- 11:38, 25 May 2014 David (talk | contribs) uploaded File:Extreme Spread Relative Efficiency.png (Relative Efficiency of Extreme Spread estimation by group size.)
- 19:21, 15 May 2014 David (talk | contribs) uploaded File:Bivariate.png (Standard bivariate normal illustration with sigma = 1.)
- 15:05, 3 May 2014 David (talk | contribs) uploaded File:3ShotSighterError.png (Illustration of misses on a 99% target (i.e., a target big enough that 99% of shots fired from a perfectly-sighted gun should hit it), produced by the sighting error expected from using a 3-shot sighter group.)
- 16:51, 26 April 2014 David (talk | contribs) uploaded a new version of File:Extreme Spread Quantiles.xlsx (Added normalized quantile functions.)
- 21:03, 18 March 2014 David (talk | contribs) uploaded File:RayleighEstimatorQuantile.c (Simulate shots from a symmetric bivariate to calculate Rayleigh estimate of sigma and output quantile function (in steps of 0.5%) of estimated sigma for each sample size 2-50.)
- 21:02, 18 March 2014 David (talk | contribs) uploaded File:RayleighEstimatorQuantiles.xls (Quantile functions and moments for the Rayleigh estimator on sample sizes from 2-50. Generated by Media:RayleighEstimatorQuantile.c)
- 20:10, 18 March 2014 David (talk | contribs) uploaded File:ES Quantiles.c (Given n shots, simulate the average extreme spread of s groups of size g, for all s*g = n. Output sample moments as well as quantile function in steps of 0.5%.)
- 20:09, 18 March 2014 David (talk | contribs) uploaded File:Extreme Spread Quantiles.xlsx (Quantile functions and moments for Extreme Spread on various small samples of group sizes and group averages. Generated by Media:ES_Quantiles.c)
- 20:25, 3 March 2014 David (talk | contribs) uploaded File:Sitton 1990.pdf (''Groups, Statistics, and Practical Facts'', G. Sitton, 1990.)
- 15:55, 26 February 2014 David (talk | contribs) uploaded File:RangeStatisticEstimation.xls (Simulation data and formulas for calculating the number of samples needed to estimate range statistics.)
- 20:39, 25 February 2014 David (talk | contribs) moved page Predicting Precision to Closed Form Precision
- 20:38, 25 February 2014 David (talk | contribs) moved page Asymmetric shot groups to Elliptic Error Probable
- 16:43, 23 February 2014 David (talk | contribs) uploaded File:Statistical Measures for Riflemen and Missile Engineers - Grubbs 1964.pdf
- 20:56, 21 February 2014 David (talk | contribs) uploaded File:Approximate Distributions for Extreme Spread - Taylor 1975.pdf
- 17:45, 14 February 2014 David (talk | contribs) renameuser
- 17:44, 3 February 2014 David (talk | contribs) uploaded File:300BLK 225gr IMR4227 subsonic 100yd.xlsx (300BLK Subsonic 60-shot 100-yard Example)
- 17:33, 3 February 2014 David (talk | contribs) uploaded File:300BLK Subsonic Handloads 100yds.png (300BLK Subsonic 60-shot 100-yard Example)
- 16:00, 3 February 2014 David (talk | contribs) uploaded File:TargetSubsonicColor.pdf (Category: Printable Targets Color single high target to allow for significant vertical drop.)
- 16:00, 3 February 2014 David (talk | contribs) uploaded File:TargetDoubleColor.pdf (Category: Printable Targets Color printable double target.)
- 15:59, 3 February 2014 David (talk | contribs) uploaded a new version of File:TargetDouble.pdf (Category: Printable Targets Printable double target.)
- 15:58, 3 February 2014 David (talk | contribs) uploaded a new version of File:TargetSubsonic.pdf (Category: Printable Targets Single high target to allow for significant vertical drop.)
- 16:34, 20 January 2014 Armadillo (talk | contribs) uploaded File:AnglesSit.jpg
- 16:34, 20 January 2014 Armadillo (talk | contribs) uploaded File:AnglesCmp.jpg
- 16:34, 20 January 2014 Armadillo (talk | contribs) uploaded File:AnglesCircle.jpg
- 16:33, 20 January 2014 Armadillo (talk | contribs) uploaded File:AnglesCenter.jpg
- 13:34, 10 January 2014 David (talk | contribs) uploaded File:TargetSubsonic.pdf (Category: Printable Targets Single high target to allow for significant vertical drop.)
- 12:40, 10 January 2014 David (talk | contribs) uploaded File:TargetDouble.pdf (Printable double target)
- 16:59, 8 January 2014 User account Armadillo (talk | contribs) was created by David (talk | contribs) and password was sent by email
- 09:59, 7 January 2014 David (talk | contribs) uploaded File:2D ES Example.png (Example of two targets with the same Extreme Spread but different Mean Radius.)
- 15:27, 2 January 2014 David (talk | contribs) uploaded File:300BLK 220gr Factory Subsonic 100yd.xlsx (Analysis and muzzle velocity adjustment of 20 shots at 100 yards of subsonic Remington Express .300BLK.)
- 15:26, 2 January 2014 David (talk | contribs) uploaded File:300BLK Subsonic Target w MV Adjustment.png (Overlay of two target series: 1 - Raw shots of 20 Subsonic Remington Express .300BLK rounds at 100 yards. 2 - Same shots adjusted by rank for measured muzzle velocity. See data in File:300BLK 220gr Factory Subsonic 100yd.xlsx.)
- 15:08, 2 January 2014 David (talk | contribs) uploaded a new version of File:CCI 40gr HV 100yd.xlsx (Precision analysis of sample targets Media:40grCCI HV 100Yards String1.jpg and Media:40grCCI HV 100Yards String2.jpg)
- 14:06, 2 January 2014 David (talk | contribs) uploaded a new version of File:SCAR17 150gr 100yd.png (Precision measures diagrammed on a 10-round group that was fired at 100 yards through a SCAR 17S. Data are in Media:SCAR17_150gr_100yd.xls.)
- 14:03, 2 January 2014 David (talk | contribs) uploaded a new version of File:SCAR17 150gr 100yd.png (Reverted to version as of 23:10, 30 November 2013)
- 14:03, 2 January 2014 David (talk | contribs) uploaded a new version of File:SCAR17 150gr 100yd.png (Precision measures diagrammed on a 10-round group that was fired at 100 yards through a SCAR 17S. Data are in Media:SCAR17_150gr_100yd.xls.)
- 15:08, 13 December 2013 David (talk | contribs) uploaded a new version of File:CCI 40gr HV 100yd.xlsx (Precision analysis of sample targets Media:40grCCI HV 100Yards String1.jpg and Media:40grCCI HV 100Yards String2.jpg)
- 11:05, 13 December 2013 David (talk | contribs) uploaded File:22LR CCI 40gr HV 40shot.png (Results of analysis in File:CCI 40gr HV 100yd.xlsx of 40 shots (across two strings) of 22LR CCI 40gr HV, adjusted for sample muzzle velocity dispersion.)
- 11:04, 13 December 2013 David (talk | contribs) uploaded File:CCI 40gr HV 100yd.xlsx (Precision analysis of sample targets Media:40grCCI HV 100Yards String1.jpg and Media:40grCCI HV 100Yards String2.jpg)
- 11:03, 13 December 2013 David (talk | contribs) uploaded File:40grCCI HV 100Yards String2.jpg (Sample target: 22LR CCI 40gr HV 20 shots at 100 yards)
- 11:02, 13 December 2013 David (talk | contribs) uploaded File:40grCCI HV 100Yards String1.jpg (Sample target: 22LR CCI 40gr HV 20 shots at 100 yards)
- 13:18, 2 December 2013 User account Josh (talk | contribs) was created by David (talk | contribs) and password was sent by email
- 01:41, 2 December 2013 David (talk | contribs) uploaded File:DanielsonExample.xlsx (An analysis of phttp://www.public.iastate.edu/~jessie/PPB/Stats/Testing%20loads.htm Brent Danielson's 2-Shot method] and demonstration of its relationship to the precision parameter estimate and confidence intervals.)
- 18:11, 1 December 2013 David (talk | contribs) uploaded File:Confidence Interval Convergence.xlsx (Source data for File:ConfidenceIntervals.png)
- 22:41, 30 November 2013 David (talk | contribs) uploaded File:ConfidenceIntervals.png (Confidence Intervals and Range as a function of sample size, holding sample radius constant.)
- 19:20, 30 November 2013 David (talk | contribs) uploaded File:SCAR17 150gr 100yd.xls (Data and calculations for File:SCAR17 150gr 100yd.png.)
- 19:10, 30 November 2013 David (talk | contribs) uploaded File:SCAR17 150gr 100yd.png (Precision measures diagrammed on a 10-round group that was fired at 100 yards through a SCAR 17S. Data are in Media:SCAR17_150gr_100yd.xls.)
- 12:07, 28 November 2013 David (talk | contribs) uploaded File:SymmetricBivariateSigma1.xls (Formatted output of Media:SymmetricBivariate.c with SIGMA set to 1.0)
- 13:52, 27 November 2013 David (talk | contribs) uploaded a new version of File:RadiusBounds.png
- 13:28, 27 November 2013 David (talk | contribs) uploaded File:RadiusBounds.png (Upper and lower bounds on average radius given an Extreme Spread for n shots.)
- 12:42, 27 November 2013 David (talk | contribs) uploaded File:3ShotSample.png (Sample 3-shot group with 1/2" extreme spread. Sample center is in red and is .29" from each shot.)
- 20:20, 26 November 2013 David (talk | contribs) uploaded a new version of File:SymmetricBivariate.c
- 20:16, 26 November 2013 David (talk | contribs) uploaded a new version of File:SymmetricBivariate.c (Fixed correction factor for sigma estimates: cG(2n-1), not sqrt(cG(n)).)
- 20:11, 26 November 2013 David (talk | contribs) uploaded a new version of File:RayleighProcess.png (Fixed CEP coefficient)
- 14:47, 25 November 2013 David (talk | contribs) uploaded File:Some Problems Connected With Rayleigh Distributions - Siddiqui 1961.pdf (Some Problems Connected With Rayleigh Distributions, M. M. Siddiqui, 1961.)
- 13:36, 25 November 2013 David (talk | contribs) uploaded File:Statistical Inference for Rayleigh Distributions - Siddiqui, 1964.pdf (Statistical Inference for Rayleigh Distributions, M. M. Siddiqui, 1964)
- 12:58, 25 November 2013 David (talk | contribs) uploaded File:ShotStatWiki.png (Standard load development target.)
- 20:22, 23 November 2013 David (talk | contribs) uploaded File:Is Group Size the Best Measure of Accuracy by J.E. Leslie III.pdf (''Is "Group Size" the Best Measure of Accuracy'', John E. Leslie III, 1993)
- 23:35, 22 November 2013 David (talk | contribs) uploaded File:SymBiSampleRanges.c (Symmetric Bivariate Sample Ranges -- Source code to generate simulation data in File:Sigma1RangeStatistics.xls)
- 23:33, 22 November 2013 David (talk | contribs) uploaded a new version of File:Sigma1RangeStatistics.xls (Simulated median, 50%, 80%, and 95% quantiles, plus first four sample moments, for shot groups containing 2 to 100 shots, of: Extreme Spread, Diagonal, Figure of Merit)
- 17:47, 22 November 2013 David (talk | contribs) uploaded File:RangeStatistics.png (Graph of data from Media:Sigma1RangeStatistics.xls -- median value with 50% bands for Extreme Spread, Diagonal, and Figure of Merit with sigma = 1, for shot groups of size 2 to 50.)
- 17:43, 22 November 2013 David (talk | contribs) uploaded File:Sigma1RangeStatistics.xls (Simulated median, 50%, and 90% range of the following statistics for shot groups containing 2 to 50 shots: * Extreme Spread * Diagonal * Figure of Merit)
- 16:04, 20 November 2013 David (talk | contribs) uploaded File:SizeStatistics.png (Graph of data from File:Sigma1ShotStatistics.ods -- expected and standard deviation of values for Extreme Spread, Diagonal, and Figure of Merit with sigma = 1, for shot groups of size 2 to 50.)
- 14:21, 20 November 2013 User account Charlie (talk | contribs) was created by David (talk | contribs) and password was sent by email
- 22:57, 19 November 2013 David (talk | contribs) uploaded File:SymmetricBivariate.c (Source code to verify correction factors and to generate the data in File:Sigma1ShotStatistics.ods)
- 22:47, 19 November 2013 David (talk | contribs) uploaded File:Sigma1ShotStatistics.ods (Simulated mean and stdev of measures for shot groups containing 2 to 100 shots: * Distance from sample center to true center * Extreme Spread * Diagonal * Figure of Merit Also lists the value of the three correction factors for each n: * Bessel * Gaus...)
- 15:19, 19 November 2013 David (talk | contribs) uploaded File:RayleighProcess.png
- 14:18, 18 November 2013 David (talk | contribs) uploaded File:PrecisionVsAccuracy2.png
- 14:14, 18 November 2013 David (talk | contribs) uploaded File:PrecisionVsAccuracy.png