Changing elements with a condition
1 view (last 30 days)
Show older comments
Hi all,
I've some basic questions about changing the elements of a 9x9 matrix with a specific condition. The matrix is;
X1 =
0 0 0 0 0 0 0 0 0
0.2778 0.2800 0 0 0 0 0 0 0
0.2222 0.2000 0.3700 0 0 0 0 0 0
0.1333 0.1600 0.1750 0.4600 0 0 0 0 0
0.0889 0.0960 0.1400 0.1500 0.5950 0 0 0 0
0.0667 0.0640 0.0840 0.1200 0.1125 0.5950 0 0 0
0.0611 0.0480 0.0560 0.0720 0.0900 0.1125 0.6400 0 0
0.0444 0.0440 0.0420 0.0480 0.0540 0.0900 0.1000 0.6400 0
0.0222 0.0320 0.0385 0.0360 0.0360 0.0540 0.0800 0.1000 0.6400
And I want to create X2 as
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0.278 0.280 0 0 0 0 0 0
0 0.222 0.200 0.370 0 0 0 0 0
0 0.133 0.160 0.175 0.460 0 0 0 0
0 0.089 0.096 0.140 0.150 0.595 0 0 0
0 0.067 0.064 0.084 0.120 0.113 0.595 0 0
0 0.061 0.048 0.056 0.072 0.090 0.113 0.640 0
0 0.044 0.044 0.042 0.048 0.054 0.090 0.100 0.640
And X3 as
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0.278 0.280 0 0 0 0 0
0 0 0.222 0.200 0.370 0 0 0 0
0 0 0.133 0.160 0.175 0.460 0 0 0
0 0 0.089 0.096 0.140 0.150 0.595 0 0
0 0 0.067 0.064 0.084 0.120 0.113 0.595 0
0 0 0.061 0.048 0.056 0.072 0.090 0.113 0.640
Thanks to everyone for solution.
;
2 Comments
Accepted Answer
James Tursa
on 21 Dec 2018
clear X2 X3
[m,n] = size(X1);
X2(2:m,2:n) = X1(1:m-1,1:n-1);
X3(3:m,3:n) = X1(1:m-2,1:n-2);
More Answers (0)
See Also
Categories
Find more on Multidimensional Arrays in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!