Lesson 16 –Converting Data Type in Existing Numpy Array for Machine Learning

In this lesson I will show you How to convert the existing data type in a NumPy array for Machine Learning. The best way to change the data type of an existing array, is to make a copy of the array with the astype() method.
The astype() function creates a copy of the array, and allows you to specify the data type as a parameter.
The data type can be specified using a string, like 'f' for float, 'i' for integer etc. or you can use the data type directly like float for float and int for integer.