#2 · Frecventa

Frequency within a Block

Verifica daca proportia de 1 este apropiata de 1/2 in fiecare bloc de M biti.

Intrare

n biti, impartiti in N = n/M blocuri.

Statistica

chi^2 = 4M sum (pi_i - 1/2)^2; p = igamc(N/2, chi^2/2).

Decizie

p < alpha => dezechilibru local, nealeator.

Minim recomandat

100 biti

Ruleaza

M (biti/bloc)alpha100 biti

API

curl -s https://rngtests.danielwagner.ro/api/run/block-frequency \
  -H 'Content-Type: application/json' \
  -d '{"bits":"1100100100001111110110101010001000100001011010001100001000110100110001001100011001100010100010111000"}'