how to scale an array between two values python

Solutions on MaxInterview for how to scale an array between two values python by the best coders in the world

Search
showing results for - "how to scale an array between two values python"
Lou
02 Jul 2018
1import numpy as np
2
3a = np.random.rand(3,2)
4
5# Normalised [0,1]
6b = (a - np.min(a))/np.ptp(a)
7
8# Normalised [0,255] as integer: don't forget the parenthesis before astype(int)
9c = (255*(a - np.min(a))/np.ptp(a)).astype(int)        
10
11# Normalised [-1,1]
12d = 2.*(a - np.min(a))/np.ptp(a)-1
source
similar questions
converting list of arrays with same size to single array pythonpython convert multidimensional array to one dimensionalpython merge two array into onepython how to move multiple values from one list to another at oncecopy a 2d array in pythonmean along third dimension array pythonhow to multiply two arrays in pythonpython difference between consecutive element in listdistance euc of two arrays pythonpython 1d array into 2d arraycreate an array with same value pythonpython convert two dimensional list to one dimensionalpython list with several same valueshow to merge two variables to get an array in pythonpython turn list of strings into list of doublesapply same shuffle to two arrays numpyshuffle two arrays the same way pythonhow to get height of 2d array in pythonpython declare 2d array sizecreate an array of n same value pythonpython how to change an element in a multi dimensional listpython copy a 2d listtwo dimensional array pythoncopy a 2d list python
queries leading to this page
numpy scale datanumpy scale arraynormalize between negative 1 and 1 numpynumpy change range of arrayhow to scale an array between two values python