I created sample data for my ML code, which is in 2D NumPy array format. I want to save the data into a CSV file so that I can use it later. How can I save the NumPy array data as CSV file?

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You can use **savetxt()** function of Numpy to save the Numpy array as a CSV file.

Here is an example:

>>> import numpy as np

>>> X

array([[-2.55680932, -0.29639853],

[-4.63893653, -0.85596495],

[-3.94689236, 1.44952573],

[ 3.07662588, 0.7127008 ],

[ 2.03985374, -1.22554641],

[ 6.02615859, 0.21568336]])>>> np.savetxt('opfile.csv', X, delimiter=",")

The above code will create the output file 'opfile.csv' with the following content.