Convert all element in list to int python

Examples of how to convert a float array to an integer array in python:

Using the numpy function astype

To convert a float array to an integer array in python, a solution is to use astype, example:

>>> import numpy as np >>> A = np.array[[0.4, 1.6, 2.1, -3.7, 2.9]] >>> A array[[ 0.4, 1.6, 2.1, -3.7, 2.9]] >>> A = A.astype[int] >>> A array[[ 0, 1, 2, -3, 2]]

Round the numbers before converting them in integer

It is also possible to round the numbers and after convert them to integer using the numpy function around

>>> import numpy as np >>> A = np.array[[0.4, 1.6, 2.1, -3.7, 2.9]] >>> A array[[ 0.4, 1.6, 2.1, -3.7, 2.9]] >>> A = np.around[A] >>> A array[[ 0., 2., 2., -4., 3.]] >>> A = A.astype[int] >>> A array[[ 0, 2, 2, -4, 3]]

Note: work also with the function rint, example

>>> import numpy as np >>> A = np.array[[0.4, 1.6, 2.1, -3.7, 2.9]] >>> A array[[ 0.4, 1.6, 2.1, -3.7, 2.9]] >>> A = np.rint[A] >>> A array[[ 0., 2., 2., -4., 3.]] >>> A = A.astype[int] >>> A array[[ 0, 2, 2, -4, 3]] >>> import numpy as np >>> A = np.array[[0.4, 1.6, 2.1, -3.7, 2.9]] >>> A array[[ 0.4, 1.6, 2.1, -3.7, 2.9]] >>> A = np.trunc[A] >>> A array[[ 0., 1., 2., -3., 2.]] >>> A = A.astype[int] >>> A array[[ 0, 1, 2, -3, 2]]

Round to the nearest bigger integer

>>> import numpy as np >>> A = np.array[[0.4, 1.6, 2.1, -3.7, 2.9]] >>> A array[[ 0.4, 1.6, 2.1, -3.7, 2.9]] >>> A = np.ceil[A] >>> A array[[ 1., 2., 3., -3., 3.]] >>> A = A.astype[int] >>> A array[[ 1, 2, 3, -3, 3]]

Round to the nearest smaller integer

>>> import numpy as np >>> A = np.array[[0.4, 1.6, 2.1, -3.7, 2.9]] >>> A array[[ 0.4, 1.6, 2.1, -3.7, 2.9]] >>> A = np.floor[A] >>> A array[[ 0., 1., 2., -4., 2.]] >>> A = A.astype[int] >>> A array[[ 0, 1, 2, -4, 2]]

References

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