“Got 1 columns instead of …” error in numpy

Question

I\'m working on the following code for performing Random Forest Classification on train and test sets;

from sklearn.ensemble import RandomForestClassifier
fr         


        

Answer 1

genfromtxt will give this error if the number of columns is unequal.

I can think of 3 ways around it:

1. Use the usecols parameter

np.genfromtxt('yourfile.txt',delimiter=',',usecols=np.arange(0,1434))

However - this may mean that you lose some data (where rows are longer than 1434 columns) - whether or not that matters is down to you.

2. Adjust your input data file so that it has an equal number of columns.

3. Use something other than genfromtxt:

.............like this