Question

I am trying to run this python script called fselect in windows 7. It can be downloaded from this website: http://www.csie.ntu.edu.tw/~cjlin/libsvmtools/ under this name called Feature selection tool. I am running it on Python 2.7.2.Facing a bit of problem running it..

Typed this first in IDLE:

>>> import pprint
>>> import sys
>>> print pprint.pprint(sys.path)
>>> sys.path.append("C:\Users\HP\Documents\MATLAB\libsvm-3.11\tools")
>>> import fselect
Usage:  training_file [testing_file]

Then the problem is when i type the next part:

Tried this:

>>> ./fselect.py TrainVec
SyntaxError: invalid syntax

Next tried this:

>>> fselect.py TrainVec
SyntaxError: invalid syntax

Next tried this:

>>> TrainVec

Traceback (most recent call last):
  File "<pyshell#7>", line 1, in <module>
    TrainVec
NameError: name 'TrainVec' is not defined

Tried this also:

>>> TrainVec.mat

Traceback (most recent call last):
  File "<pyshell#8>", line 1, in <module>
    TrainVec.mat
NameError: name 'TrainVec' is not defined

What is the correct way of typing it? Need some guidance on it…

tried running using cmd but there is an error…

Answer 1

If you are trying to run the fselect.py directly from the command prompt, make sure that python is set into the path variable. For guidance with that, please read http://people.cis.ksu.edu/~schmidt/200f07/setpath.html.

The script will also invoke grid.py. grid.py requires gnuplot to be there. So ensure that grid.py is running properly and if necessary check the paths of the svm_train, svm_test in the script along with that of grid.py.
Hope it will work now.