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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
199093 changed files with 3378972 additions and 0 deletions
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10
Task/Percolation-Mean-run-density/Zkl/percolation-mean-run-density-1.zkl Normal file
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fcn run_test(p,len,runs){
cnt:=0; do(runs){
pv:=0; do(len){
v:=0 + ((0.0).random(1.0)<p); // 0 or 1, value of V[n]
cnt += (pv<v); // if v is 1 & prev v was zero, inc cnt
pv = v;
}
}
return(cnt.toFloat() / runs / len);
}

13
Task/Percolation-Mean-run-density/Zkl/percolation-mean-run-density-2.zkl Normal file
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println("Running 1000 tests each:\n"
" p\t n\tK\tp(1-p)\t diff\n"
"-----------------------------------------------");
foreach p in ([0.1..0.9,0.2]) {
p1p:=p*(1.0 - p);
n:=100; while(n <= 100000) {
K:=run_test(p, n, 1000);
"%.1f\t%6d\t%.4f\t%.4f\t%+.4f (%+.2f%%)".fmt(
p, n, K, p1p, K - p1p, (K - p1p) / p1p * 100).println();
n *= 10;
}
println();
}