home *** CD-ROM | disk | FTP | other *** search
- PROGRAM d7r10 (input,output);
- (* driver for routine IRBIT1 *)
- (* calculate distribution of runs of zeros *)
- CONST
- nbin=15;
- ntries=500;
- VAR
- i,iflg,ipts,iseed,j,n : integer;
- twoinv : real;
- delay : ARRAY [1..nbin] OF real;
-
- (*$I MODFILE.PAS *)
- (*$I IRBIT1.PAS *)
-
- BEGIN
- iseed := 1234;
- FOR i := 1 to nbin DO BEGIN
- delay[i] := 0.0
- END;
- writeln ('distribution of runs of n zeros');
- writeln ('n':6,'probability':22,'expected':18);
- ipts := 0;
- FOR i := 1 to ntries DO BEGIN
- IF (irbit1(iseed) = 1) THEN BEGIN
- ipts := ipts+1;
- iflg := 0;
- FOR j := 1 to nbin DO BEGIN
- IF ((irbit1(iseed) = 1) AND (iflg = 0))
- THEN BEGIN
- iflg := 1;
- delay[j] := delay[j]+1.0
- END
- END
- END
- END;
- twoinv := 0.5;
- FOR n := 1 to nbin DO BEGIN
- writeln ((n-1):6,(delay[n]/ipts):19:4,twoinv:20:4);
- twoinv := twoinv/2.0
- END
- END.
-