Sha256: aa652f822a1542090b9a23de2a99476feb11c039de253ac871c45acfd8f45d69
Contents?: true
Size: 782 Bytes
Versions: 22
Compression:
Stored size: 782 Bytes
Contents
#!/usr/bin/env ruby
# This is equivalent to the gsl-histogram program
require("gsl")
require("getopts")
getopts(nil, "DISPLAY_STATS")
case ARGV.size
when 2
a = ARGV[0].to_f
b = ARGV[1].to_f
n = (b - a).to_i
when 3
a = ARGV[0].to_f
b = ARGV[1].to_f
n = ARGV[2].to_i
else
puts("Usage: : gsl-histogram.rb [--DISPLAY_STATS] xmin xmax [n]")
puts("Computes a histogram of the data on stdin using n bins from xmin to xmax.")
puts("If n is unspecified then bins of integer width are used.")
exit
end
h = GSL::Histogram.alloc(n)
h.set_ranges_uniform(a, b)
while line = STDIN.gets
x = line.chomp.split[0].to_f
h.increment(x)
end
if $OPT_DISPLAY_STATS
printf("# mean = %g\n", h.mean)
printf("# sigma = %g\n", h.sigma)
end
h.fprintf(STDOUT, "%g", "%g")
exit
Version data entries
22 entries across 22 versions & 4 rubygems