Regarding reshape function

#1

in this we are using .reshape so as to convert the numpy array to 2d array but why we are using it what is the us of reshaping?

#2

moreover x = data[:,1:] this means we are selecting all rows and columns 1 but if we dox = data[:,2:] that means selecting 2nd column it shows error like can not reshape… wh y is this so?

#3

Hello Kushal,
We are using Reshape function here because our initial data is in the form of images, which are represented by pixels in a 2-D Array format (2828). Though, for feeding a set of images to our model we need to be in the form of a feature vector (7841). That’s the reason why we Reshape it.

Also, x = data[:,1:] means that we are selecting all rows and all columns except the first (zeroeth) column. x = data[:,2:] shows an error because that slicing is invalid because the 2th column is the last one.

I hope this clears your doubt.