檔案:Largenumbers.svg
原始檔案 (SVG 檔案,表面大小:600 × 480 像素,檔案大小:25 KB)
此檔案來自維基共享資源且可能被其他專案所使用。下方顯示此檔案於檔案描述頁面的描述內容。
摘要
| 描述Largenumbers.svg |
Català: Una il·lustració de la llei dels grans nombres, semblant a LLN Die Rolls.gif però utilitzant el format svg en comptes de gif. Això utilitza dades diferents i, per tant, sembla diferent. El codi font es troba a la secció següent. El codi està sota la mateixa "llicència" que l'obra en si.
English: An illustration of the law of large numbers, similar to LLN Die Rolls.gif but using the svg format instead of gif. This uses different data from that and hence it looks different. Source code is in the section below. The code is under the same "license" as the work itself. |
| 日期 | |
| 來源 | 自己的作品 |
| 作者 | NYKevin |
| 其他版本 |
File:Largenumbers.svg contains 2 translations.
|
| SVG開發 InfoField |
This file is translated using SVG <switch> elements. All translations are stored in the same file! Learn more.
For most Wikipedia projects, you can embed the file normally (without a To translate the text into your language, you can use the SVG Translate tool. Alternatively, you can download the file to your computer, add your translations using whatever software you're familiar with, and re-upload it with the same name. You will find help in Graphics Lab if you're not sure how to do this. |
Source code

Here is a listing of the source used to create this file.
Note that you will need to insert some paths. I've tried to make it obvious where to do so.
This code is all in the public domain (the cc0 waiver applies to it)
The code (in Java) which generated the data:
import java.io.*;
public class Main {
public static void main(String[] args) {
PrintStream output=null;
try{
output=new PrintStream("");//FIXME Insert a suitable path in the quote marks
}catch(FileNotFoundException e){
throw new RuntimeException(e);
}
//int diceValues[] = {0,0,0,0,0,0};//this variable may be uncommented and used for debugging
double average=0;
double total=0;
output.println("#count average");//makes a header for the data; may be safely removed
Random rnd=new Random(4124484382302655524l);
//seed selected by trial and error
for(int i=1;i<=1000;i++){
int rand=rnd.nextInt(6);//now holds a random int from 0 to 5
//diceValues[rand]++;//uncomment for debugging
rand++;//convert to 1-indexed
total+=rand;
average=total/i;
output.println(i+" "+(average));
}
//System.out.println(average);
}
}
The gnuplot code:
set terminal svg
set output "OUTPUT PATH HERE"
set title "average dice value against number of rolls"
set xlabel "trials"
set ylabel "mean value"
plot [] [1:6] "PATH FROM JAVA CODE HERE" title "average" with lines, 3.5 title "y=3.5" with lines
#it is recommended that you copy and paste this code into a .plt file and run it in batch mode:
#If you must run this interactively, be sure to type "exit" or ^D (control-D) at the end,
#or gnuplot will leave off the </svg> closing tag.
MATLAB/Octave Source code
% Specify how many trials you want to run:
num_trials = 1000;
% Now grab all the dice rolls:
trials = randi(6, [1 num_trials]);
% Plot the results:
figure(1);
% Cumulative sum of the trial results divided by the index gives the
% average:
plot(cumsum(trials)./(1:num_trials), 'r-');
% Let's put a reference line at 3.5 just for fun (make the color a darker
% green as well):
hold on;
plot([1 num_trials], [3.5 3.5], 'color', [0 0.5 0]);
% Make it look pretty:
title('average dice value against number of rolls');
xlabel('trials');
ylabel('mean value');
legend('average', 'y=3.5');
axis([0 num_trials 1 6]);
授權條款
| 此檔案於創用 CC CC0 1.0 通用公有領域貢獻宣告下分發。 | |
| 在此宣告之下分發本作品者,已依據各國著作權法,在全世界放棄其對本作品所擁有的著作權及所有相關相似的法律權利,從而將本作品貢獻至公有領域。您可以複製、修改、分發和演示該作品,用於任何商業用途,所有這些都不需要請求授權。
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse |
| 註解 InfoField | 該圖片含有註解:在維基媒體共享資源上查看註解 |
On the left, random fluctuations are evident.
Here, the average begins to level out around 3.5
說明
在此檔案描寫的項目
描繪內容
31 1 2010
image/svg+xml
檔案歷史
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| 日期/時間 | 縮圖 | 尺寸 | 使用者 | 備註 | |
|---|---|---|---|---|---|
| 目前 | 2024年11月15日 (五) 14:54 | 600 × 480(25 KB) | Dr. Greywolf | File uploaded using svgtranslate tool (https://svgtranslate.toolforge.org/). Added translation for yue. |
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