Easiest way of Renaming Vectors

One of the functions I'm using is giving me vectors whose name format is myc1_L, myc2_L, myc3_L ... myc99_L . Is there an easy way to rename them as A1 A2 A3 ...A99 ?

Answer 1

[Walter Roberson]

Why? If you are doing it to try to match the example variable names of the FAQ, you are probably doing the wrong thing. Better to convert it all to a cell array.

http://matlab.wikia.com/wiki/FAQ#How_can_I_create_variables_A1.2C_A2.2C....2CA10_in_a_loop.3F

[Oleg Komarov]

As I commented in John's previous post, he has same size matrices, and I recommended to use a 3D array.

@John, have you tried the solutions in the FAQ or mine?

[John]

I want to concatenate the arrays horizontally, C = horzcat(A1, A2, ...).

[Walter Roberson]

Put them in a cell array, A{1}, A{2}, A{3}, and so on, and then

C = [A{:}];

However, Oleg's comment suggests that what you will end up wanting is

C = cat(3, A{:});

[John]

I started using Matlab this week. Still trying to figure it out. I have a function

   K = RipleysK(myc,distance,box,1);

where I'm using the loop below to calculate L for myc1, myc2....

 c = who('myc*','-global');
   for i = 1:size(c,1); 
       C = eval(cell2mat(c(i))); 
       K = RipleysK(C,distance,box,1); % Function to be looped
       d =(1:rmax); r=d';
       L =(sqrt(K/pi)-r); 
       eval([cell2mat(c(i)) '_L' '=L']);
   end

The results are named myc1_L, myc2_L......how can I edit it to rename them A1,A2,.....

[Oleg Komarov]

You DO NOT have to rename them to A1,A2 etc... but use a cell array, a structure, or a 3D array.

How did you generate myc* in the first place? Please post the code so that we can give you the right setting.

[Walter Roberson]

Replace your line

eval([cell2mat(c(i)) '_L' '=L']);

with

eval( sprintf('A%d = L', i) );

This will do what you asked, rename to A1, A2, etc.. Please go ahead and try it, and get back to us once you prove to yourself that this is not a useful thing to do.

[John]

Thanks, it worked. Hopefully I will be able to use easier ways as I continue learning the MATLAB basics.