NumPy String: numpy.char.isdecimal() function

numpy.char.isdecimal() function

The numpy.char.isdecimal() function is used to check if all characters in a string are decimal characters. Returns True if there are only decimal characters in the element otherwise false.

This function is useful to validate whether a given string contains only decimal characters or not.

Syntax:

numpy.char.isdecimal(a)

Parameter:

Return value:

out : ndarray, bool - Array of booleans identical in shape to a.

Example: Checking if string contains only decimals using numpy.char.isdecimal()

>>> import numpy as np
>>> x = np.char.isdecimal('123')
>>> x
array(True)

In the above example, the string '123' is passed as an argument to the isdecimal() method which returns a boolean value True since it contains only decimal characters. The result is stored in a numpy array named x.

Example: Checking if a string contains only decimal characters using numpy.char.isdecimal()

>>> import numpy as np
>>> y = np.char.isdecimal('1.123')
>>> y
array(False)

In the above example the input string '1.123' contains a non-decimal character '.', so np.char.isdecimal() returns a boolean value of False when applied to this string.

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