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On Thursday 06 June 2002 21:30, Joerg Johannes wrote:
> At university, we have an old spectro-photometer, that spits out its data
> in ASCII formatted files. The problem is, The data I get is sorted in lines
> rather than in columns (See examples below). Is there a progam (preferably
> command-line) that can do swap the rows to columns, and vice-versa. I need
> something that makes "Search and replace two spaces by a \newline" and
> afterwards a bit of rectangle-editing in emacs obsolete.
>
> Here comes the example:
> ... The file I get from the photometer ...
> 0.000 -0.000014 0.007990 0.013480 0.017795 0.021675 0.028663
> 0.032588 0.038895 0.044002 0.050834 1.000 -0.000962 0.038026
> 0.069427 0.085865 0.108307 0.140563 0.166330 0.195794 0.223759
> 0.252516 --- end file ---
>
> ... And I have to change it to ...
> -0.000014 -0.000962
> 0.007990 0.038026
> 0.013480 0.069427
> 0.017795 0.085865
> 0.021675 0.108307
> 0.028663 0.140563
> 0.032588 0.166330
> 0.038895 0.195794
> 0.044002 0.223759
> 0.050834 0.252516
> --- end file ---
>
> This is a rather short example, this is OK to be done by hand, but imagine
> 20 rows of 20 samples... Annoying, isn't it?
I have written a little python script to do it. Hope it works for you. :-)
#!/usr/bin/env python
import re,sys,string
if len(sys.argv) != 2:
print "Usage: %s infile" %(sys.argv[0])
sys.exit()
infile = string.replace(open(sys.argv[1]).read(),"\n"," ")
pattern = re.compile(r"(?:(.+?[ ]) *)",re.DOTALL)
numbers = pattern.findall(infile)
outp = ""
for i in range(len(numbers)):
if (i%2):
outp+='\t'
if float(numbers[i])>=0:
outp+=' '
outp+=numbers[i]+(' '*(10-len(numbers[i])))
if float(numbers[i])>=0: outp+=' '
if (i%2):
outp+='\n'
print outp
- --
Matias Hermanrud Fjeld
Computers are like air conditioners.
They stop working when you open Windows.
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