On Sun, Mar 23, 2014 at 6:05 AM, Anitha Gollamudi <[email protected]> wrote:
>
> OK. I misunderstood the documentation when it said the classifiers can
> work with CSR matrices. I have assumed feature_extraction as not
> important and so did not implement in this case. The input is the
> libSVM format multi-label and multi-class data. I have loaded using
> load_svmlight_file and fed the data to classifier. Clearly, this looks
> incorrect.
>
I guess you have loaded your train and test files separately by calling
load_svmlight_file twice. In that case, you need to explicitly pass
n_features=X_train.shape[1] as an argument to load_svmlight_file when
loading the test file. You can also use load_svmlight_files for loading
both files simultaneously. In that case, this will take care of adjusting
n_features for you.
Mathieu
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