reading floats from file
Pete Shinners
pete at visionart.com
Tue Sep 4 18:52:42 EDT 2001
John Hunter wrote:
> I have a file of ascii data arranged as a matrix of floats, eg
>
> 0.3125 0.9418 1.2843 0.924516 0.92855
> 0.3125 0.6593 1.2843 0.900514 0.900914
> 0.1667 0.9757 1.5611 0.893318 0.893699
>
> I want to read this data and process it a line at a time
>
> This works:
>
> fh = open(dataDir + 'freqs_and_amps.dat')
> for line in fh.readlines():
> line = re.sub('^[ ]+', '', line)
> x = map(float, re.split('[\r\n\t ]+', line[0:len(line)-1]))
strings already have a split() method that will split
the string based on whitespace. no need to bring RE into
the mix for this.
for line in fh.readlines():
x = map(float, line.split())
More information about the Python-list
mailing list