python - NIST Randomness Tests requires a sequence of ASCII 0's and 1's but does not accept any trial from MATLAB -

i trying use nist randomness test suite randomness tests of long 0-1 bit sequences. requires me supply either ascii zeroes , ones or binary file each byte 8 bits of data. however, tried

save(...,'-ascii'), fwrite() , other commands make work not accept , gives me segmentation error + igamc: underflow error.

if can how create matching format in addition if knows mathematica created own sample files below mathematica , maybe can format , can tell me in matlab.

binexp[num_,d_] := module[{n,l},  if[d > $maxprecision, $maxprecision = d];  n = n[num,d];  l = first[realdigits[n,2]]  ];  se = binexp[e,302500];  save["data.e",{se}]; 

i assume have software installed (compiled) instructed in manual

to see how run software start in section 5.3 in manual.

you can generate ascii file of random 0/1 generated in matlab follows:

n=10000;  % <-- length of sequence  seq = rand(n,1)>0.5;     fid=fopen('test.txt','w','native'); fprintf(fid,'%d',seq) fclose(fid) 

[hat tip @amro explains alternate binary file format in comments below.]

place file in program source directory , run

> ./assess.exe 10000  

or equivalent on system , follow prompts. output in folders within \experiments\algorithmtesting\

you can evaluate program test data in folder \data , compare results listed in appendix b, example here ascii formatted rep of pi in data.pi:

> ./assess.exe 1000000       0 [data source?]     .\data\data.pi [path file?]     1 [tests?]     0 [adjust pars?]      1 [bitstreams?]      0 [ascii?] 

edit

here (untested) interpretation of amro's explanation of how write string array of 0/1 binary:

fid=fopen('test.txt','w','native'); fwrite(fid, bin2dec(reshape(num2str(a),[],8)), 'uint8') fclose(fid)