auditory wrote: > I am a newbie here > > I am trying to read "space separated floating point data" from file > > I read about csv module by searching this group, > but I couldn't read space separated values with csv. > (which may be matter of course..) > > I also read about numpy.fromfile(file, sep=' ') which i can use. > but on my machine(ubuntu linux) numpy is unknown module, > which I didn't install by myself.
You will need to install NumPy. > > While trying to install numpy accroding to its homepage. > (http://numpy.scipy.org/numpydoc/numdoc.htm). > i am quite confused. You are reading old documentation for Numeric and so any installation description is how to install the Numeric module (not its newer replacement which is called NumPy). So: 1) Yes, you need NumPy 2) This *is different* from Numeric 3) You get it by either installing a pre-built package for your system or by a) downloading the source tar-file from http://sourceforge.net/project/showfiles.php?group_id=1369&package_id=175103 (get the numpy-<version>.tar.gz file b) tar zxvf numpy-<version>.tar.gz c) cd numpy-<version> d) sudo python setup.py install e) If you want to link against high-performance libraries on your system, then either put them in standard locations or edit the site.cfg file appropriately (Optional). > > 4. Or what is general way to read 'space separated values' from file? You can easily read space-separated values from a file by reading in a line at a time and using the split method of strings: fid = open('filename') linedata = fid.readlines() new = [[float(x) for x in line.split()] for line in linedata] new will be a nested sequence of floats. You can convert it to an array (if you want to do math on it) using anew = numpy.array(new) -Travis -- http://mail.python.org/mailman/listinfo/python-list
