NumPy strings.istitle()
The numpy.strings.istitle() function checks whether each string element in an array is titlecased. A string is considered titlecased if each word starts with an uppercase letter followed by lowercase letters and contains at least one character.
Syntax
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numpy.strings.istitle(x, /, out=None, *, where=True, casting='same_kind', order='K', dtype=None, subok=True)Parameters
| Parameter | Type | Description |
|---|---|---|
x | array_like (StringDType, bytes_, or str_ dtype) | Input array of strings to check. |
out | ndarray, None, or tuple of ndarray and None, optional | Optional output array to store results. If None, a new array is created. |
where | array_like, optional | Boolean mask determining which elements should be checked. |
casting | str, optional | Defines the casting behavior. |
order | str, optional | Specifies memory layout order. |
dtype | data-type, optional | Specifies the data type of the output array. |
subok | bool, optional | Determines if subclasses of ndarray are preserved. |
Return Value
Returns a boolean array indicating whether each string element in x is titlecased. If x is a scalar, a single boolean value is returned.
Examples
1. Checking Titlecase Strings in an Array
In this example, we check if each string in an array is titlecased.
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import numpy as np
# Define an array of strings
strings = np.array(["Hello World", "python programming", "Data Science", "Machine Learning"])
# Check if each string is titlecased
result = np.char.istitle(strings)
# Print the results
print("Input Strings:", strings)
print("Titlecase Check:", result)Output:
Input Strings: ['Hello World' 'python programming' 'Data Science' 'Machine Learning']
Titlecase Check: [ True False True True]