Numpy.zeros_like() Method
The numpy.zeros_like() method creates a new array of zeros with the same shape and type as a given input array…
How to Read and Write JSON to a File in Python
To write a json to a file, use the built-in json.dump(obj, file) method that serializes a Python object to a…
Python statistics.variance() Method
Python statistics.variance() is a built-in module method that calculates the sample variance of numerical data. For calculating population variance (divided…
How to Reverse a String in Python
Python strings are immutable, and to reverse them, you need to always return a new string without modifying the original.…
Python List reverse() Method
The list.reverse() is a built-in Python function that reverses the order of elements in a list in place. It directly…
Numpy.linalg.norm(): Find a Matrix or Vector Norm
The numpy.linalg.norm() method calculates the matrix or vector norm of an input array. Norms quantify the “size” or “magnitude” of…
Numpy.isnan(): Tests NaN Values Element-wise
Numpy.isnan() is a universal function (ufunc) that performs an element-wise test to check if values in an input array or…
Pandas DataFrame reset_index() Method
The DataFrame reset_index() method in Pandas resets the index of a DataFrame, replacing it with the default integer index (starting…
Pandas DataFrame set_index(): Setting an Index Column
The set_index() method in Pandas sets one or more existing columns of a DataFrame as its index (row labels). It…
Numpy.random.rand(): Generating Random Numbers
Numpy.random.rand() method creates an array of specified shape filled with random samples drawn from a uniform distribution over the half-open…
