Find Index Of Value In Numpy Array

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Array slicing in numpy learn how to slice arrays in python youtube

Array Slicing In NumPy Learn How To Slice Arrays In Python YouTube

You can use the following methods to find the index position of specific values in a NumPy array Method 1 Find All Index Positions of Value np where x value Method 2 Find First Index Position of Value np where x value 0 0 Method 3 Find First Index Position of Several Values If all the arrays are 1-D, where is equivalent to: [xv if c else yv for c, xv, yv in zip(condition, x, y)] Examples. >>> a = np.arange(10) >>> a array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]) >>> np.where(a < 5, a, 10*a) array([ 0, 1, 2, 3, 4, 50, 60, 70, 80, 90]) This can be used on multidimensional arrays too:

Put values in numpy array at certain positions numpy tutorial youtube

Put Values In Numpy Array At Certain Positions Numpy Tutorial YouTube

Find Index Of Value In Numpy Arrayimport numpy as np print("*** Find the index of an element in 1D Numpy Array ***") # Create a numpy array from a list of numbers arr = np.array([11, 12, 13, 14, 15, 16, 17, 15, 11, 12, 14, 15, 16, 17]) # Get the index of elements with value 15 result = np.where(arr == 15) print('Tuple of arrays returned : ', result) print("Elements with value . In this article we are going to find the index of the elements present in a Numpy array Using where Method where method is used to specify the index of a particular element specified in the condition Syntax numpy where condition x y Example 1 Get index positions of a given value