File:BenfordBroad.png

BenfordBroad.png(500 × 165 pixels, file size: 3 KB, MIME type: image/png)

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Description
English: A broad probability distribution on a log scale, with bars colored in to show why Benford's law holds
Source Own work
Author Sbyrnes321
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Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
(* Source code written in Mathematica 6.0, by Steve Byrnes, 2008. I release this code into the public domain. *)

LabelsList = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 30, 40, 50, 70, 100, 200, 300, 500, 1000, 2000, 5000, 10000};
LineList = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 200, 300, 400, 500, 600,
   700, 800, 900, 1000, 2000, 3000, 4000, 5000, 6000, 7000, 8000, 9000, 10000};

ff[x_] := 
  x Exp[-.1 x] .1 + x Exp[-.03 x] .03 +  x Exp[-.01 x] .01 + 
   x Exp[-.003 x] .003 + x Exp[-.001 x] .001 + x Exp[-.0003 x] .0003;

firstdig1[xx_] :=
  (1 < xx && xx < 2) || (10 < xx && xx < 20) || (100 < xx && xx < 200) || (1000 < xx && xx < 2000);
firstdig8[xx_] :=
  (8 < xx && xx < 9) || (80 < xx && xx < 90) || (800 < xx && xx < 900) || (8000 < xx && xx < 9000);

plotA = LogLinearPlot[{ff[x], If[firstdig1[x], ff[x], 0], If[firstdig8[x], ff[x], 0]}, {x, .99, 10100}, 
  Ticks -> {LabelsList, {}}, PlotRange -> {0, 1}, TicksStyle -> Directive[Black, 10],
  GridLines -> {LineList, {}}, ImageSize -> 401, AspectRatio -> .3,
  Filling -> {2 -> Bottom, 3 -> Bottom}, PlotPoints -> 1000, PlotStyle -> {Black, Red, Blue}, 
  FillingStyle -> {2 -> Red, 3 -> Blue}]

Export["plotA.gif", plotA, ImageSize -> 500]

Original upload log

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Date/Time Dimensions User Comment
9 October 2008, 04:44:33 500 × 165 (18087 bytes) Sbyrnes321 (talk · contribs) {{Information |Description={{en|1=A broad probability distribution on a log scale, with bars colored in to show why Benford's law holds}} |Source=Own work by uploader |Author=[[User:Sbyrnes321|Sbyrnes321]] |Date= |Permission= |other_versions= }} <!--{{Im

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Date/TimeThumbnailDimensionsUserComment
current02:10, 24 August 2014Thumbnail for version as of 02:10, 24 August 2014500 × 165 (3 KB)GifTagger (talk | contribs)Bot: Converting file to superior PNG file. (Source: BenfordBroad.gif). This GIF was problematic due to non-greyscale color table.

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