numReplace
Below is a demonstration of the features of the numReplace function
Contents
clear; close all; clc;
REPLACING NUMBERS IN ARRAYS
An example array
A=[0,-6,3,0,0;-1,-4,-7,-9,-9;-4,-7,11,-5,12;10,-7,5,-7,13;0,11,-2,-6,2;12,4,2,-5,NaN]
A =
0 -6 3 0 0
-1 -4 -7 -9 -9
-4 -7 11 -5 12
10 -7 5 -7 13
0 11 -2 -6 2
12 4 2 -5 NaN
Defining the input array for entries (NaN's allows) that need to be replaced
a=[2 -5 nan 0]
a =
2 -5 NaN 0
Defining the numbers (NaN's allows) to take their place
b=[991 992 993 994]; %Numbers to take their place
Replacing the numbers using numReplace
B=numReplace(A,a,b)
B =
994 -6 3 994 994
-1 -4 -7 -9 -9
-4 -7 11 992 12
10 -7 5 -7 13
994 11 -2 -6 991
12 4 991 992 993
NOTES ON PERFORMANCE FOR NON-INTEGERS
The numReplace function employs the ismember function. Hence it is suitable for all number cases where ismember is able to detect membership. Numerical precission difficulties may arise for non-integer entires. Consider the below:
logicMember=ismember(pi,pi+eps(pi)) logicMember=ismember(pi,pi+eps(pi)/10)
logicMember = logical 0 logicMember = logical 1
GIBBON www.gibboncode.org
Kevin Mattheus Moerman, [email protected]
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License: https://github.com/gibbonCode/GIBBON/blob/master/LICENSE
GIBBON: The Geometry and Image-based Bioengineering add-On. A toolbox for image segmentation, image-based modeling, meshing, and finite element analysis.
Copyright (C) 2019 Kevin Mattheus Moerman
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