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Probabilistic choice: Difference between revisions

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Probabilistic choice (view source)

Revision as of 16:01, 24 March 2022

6,082 bytes added ,  2 years ago
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→‎{{header|Phix}}: syntax coloured
(add fermat)
m (→‎{{header|Phix}}: syntax coloured)
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=={{header|Phix}}==
<!--<lang Phix>(phixonline)-->
<lang Phix>constant {names, probs} = columnize({{"aleph", 1/5},
<span style="color: #008080;">with</span> <span style="color: #008080;">javascript_semantics</span>
{"beth", 1/6},
<span style="color: #008080;">constant</span> <span style="color: #000000;">lim</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">1000000</span><span style="color: #0000FF;">,</span>
{"gimel", 1/7},
<span style="color: #0000FF;">{</span><span style="color: #000000;">names</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">probs</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">columnize</span><span style="color: #0000FF;">({{</span><span style="color: #008000;">"aleph"</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">1</span><span style="color: #0000FF;">/</span><span style="color: #000000;">5</span><span style="color: #0000FF;">},</span>
{"daleth", 1/8},
<span style="color: #0000FF;">{</span><span style="color: #008000;">"beth"</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">1</span><span style="color: #0000FF;">/</span><span style="color: #000000;">6</span><span style="color: #0000FF;">},</span>
{"he", 1/9},
<span style="color: #0000FF;">{</span><span style="color: #008000;">"gimel"</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">1</span><span style="color: #0000FF;">/</span><span style="color: #000000;">7</span><span style="color: #0000FF;">},</span>
{"waw", 1/10},
<span style="color: #0000FF;">{</span><span style="color: #008000;">"daleth"</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">1</span><span style="color: #0000FF;">/</span><span style="color: #000000;">8</span><span style="color: #0000FF;">},</span>
{"zayin", 1/11},
<span style="color: #0000FF;">{</span><span style="color: #008000;">"he"</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">1</span><span style="color: #0000FF;">/</span><span style="color: #000000;">9</span><span style="color: #0000FF;">},</span>
{"heth", 1759/27720}})
<span style="color: #0000FF;">{</span><span style="color: #008000;">"waw"</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">1</span><span style="color: #0000FF;">/</span><span style="color: #000000;">10</span><span style="color: #0000FF;">},</span>
 
<span style="color: #0000FF;">{</span><span style="color: #008000;">"zayin"</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">1</span><span style="color: #0000FF;">/</span><span style="color: #000000;">11</span><span style="color: #0000FF;">},</span>
sequence results = repeat(0,length(names))
<span style="color: #0000FF;">{</span><span style="color: #008000;">"heth"</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">1759</span><span style="color: #0000FF;">/</span><span style="color: #000000;">27720</span><span style="color: #0000FF;">}})</span>
 
<span style="color: #004080;">sequence</span> <span style="color: #000000;">results</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">repeat</span><span style="color: #0000FF;">(</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">names</span><span style="color: #0000FF;">))</span>
atom r
<span style="color: #008080;">for</span> <span style="color: #000000;">j</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #000000;">lim</span> <span style="color: #008080;">do</span>
constant lim = 1000000
<span style="color: #004080;">atom</span> <span style="color: #000000;">r</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">rnd</span><span style="color: #0000FF;">()</span>
for j=1 to lim do
<span style="color: #008080;">for</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">probs</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">do</span>
r = rnd()
<span style="color: #000000;">r</span> <span style="color: #0000FF;">-=</span> <span style="color: #000000;">probs</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">]</span>
for i=1 to length(probs) do
<span style="color: #008080;">if</span> <span style="color: #000000;">r</span><span style="color: #0000FF;"><=</span><span style="color: #000000;">0</span> <span style="color: #008080;">then</span>
r -= probs[i]
<span style="color: #000000;">results</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">]+=</span><span style="color: #000000;">1</span>
if r<=0 then
results[i]+ <span style=1"color: #008080;">exit</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
exit
<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
end if
<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
end for
end for
<span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">" Name Actual Expected\n"</span><span style="color: #0000FF;">)</span>
 
<span style="color: #008080;">for</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">probs</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">do</span>
printf(1," Name Actual Expected\n")
<span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%6s %8.6f %8.6f\n"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">names</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">],</span><span style="color: #000000;">results</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">]/</span><span style="color: #000000;">lim</span><span style="color: #0000FF;">,</span><span style="color: #000000;">probs</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">]})</span>
for i=1 to length(probs) do
<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
printf(1,"%6s %8.6f %8.6f\n",{names[i],results[i]/lim,probs[i]})
end for<!--</lang>-->
{{out}}
<pre>
Petelomax
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