/Python/How to scale an array between two values python

How to scale an array between two values python

import numpy as np

a = np.random.rand(3,2)

# Normalised [0,1]
b = (a - np.min(a))/np.ptp(a)

# Normalised [0,255] as integer: don't forget the parenthesis before astype(int)
c = (255*(a - np.min(a))/np.ptp(a)).astype(int)        

# Normalised [-1,1]
d = 2.*(a - np.min(a))/np.ptp(a)-1

Source: stackoverflow.com

Similar codes

8 votes247 views1 answer
How to write a font in pygame
Python
15 votes267 views1 answer
Function to a button in tkinter
Python
0 vote298 views1 answer
Parquet pyspark
Python
0 vote245 views1 answer
How to replace first line of a textfile python
Python
69 votes284 views3 answers
Puthon for loop
Python
2 votes271 views2 answers
Array of random integers python
Python
0 vote265 views1 answer
Find the Runner Up Score solution in python3
Python
2 votes261 views5 answers
Torch.stack
Python
3 votes242 views1 answer
Datetime.timedelta months
Python
1 vote268 views1 answer
Python number of elements in multidimensional array
Python