["python","numpy","insert"]
Prepend element to numpy array

I have the following numpy array import numpy as np X = np.array([[5.], [4.], [3.], [2.], [1.]]) I want to insert [6.] at the beginning. I've tried: X = X.insert(X, 0) how do I insert into X?
numpy has an insert function that's accesible via np.insert with documentation. You'll want to use it in this case like so: X = np.insert(X, 0, 6., axis=0) the first argument X specifies the object to be inserted into. The second argument 0 specifies where. The third argument 6. specifies what is to be inserted. The fourth argument axis=0 specifies that the insertion should happen at position 0 for every column. We could've chosen rows but your X is a columns vector, so I figured we'd stay consistent.