/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

31 votes222 views6 answers
Pandas join two dataframes
Python
19 votes234 views4 answers
How to use python to sleep if the user is not using the system
Python
7 votes218 views2 answers
Traceback python
Python
0 vote219 views1 answer
Remover espaços string python
Python
0 vote228 views1 answer
Create QAction with icon in pyqt
Python
0 vote222 views1 answer
Django validate_comma_separated_integer_list
Python
0 vote257 views2 answers
Discord.py get channel id by channel name
Python
0 vote245 views1 answer
Sqlite python select with parameters
Python
0 vote243 views1 answer
Display full length jupyter
Python
1 vote245 views1 answer
How to Add a overall Title to Seaborn Plots
Python