Using Match on a matrix without loop

uday_guntupalli

All, 
     Is it possible to use match on matrices ? I dont see from the documentation that this is possible, but has anyone tried this before ? Essentially, here is an example of what I would like to acheieve without a loop. Wish there was more documentation and blog posts for vectorizing matrix operations in JSL. 

 

A = [0.1,0.2,0.3,0.4]; 

TestMat = [1,2,3,4,4,2,3,1,3,2,4,1]; 
TestMat1 = J(N Rows(TestMat),1,0); 

for(i = 1, i <= N Rows(TestMat), i++,
		TestMat1[i,1] = Match(TestMat[i],1,A[1],2,A[2],3,A[3],4,A[4]); 
   ); 
Show(TestMat1); 

Jeff_Perkinson

Use TestMat as the Subscript for A and assign it to TestMat1:

 

 

A = [0.1, 0.2, 0.3, 0.4]; 

TestMat = [1, 2, 3, 4, 4, 2, 3, 1, 3, 2, 4, 1];

TestMat1 = A[TestMat];

Show(TestMat1);

/*:

TestMat1 = [0.1, 0.2, 0.3, 0.4, 0.4, 0.2, 0.3, 0.1, 0.3, 0.2, 0.4, 0.1];