How can I arrange (collect) values for a couple of variables into a table outside "for loop" ?

I have used "dataset" command to arrange the values of "B,R2,m,c" in a table like format; that is in a "for loop" which repeats 20 times. However, matlab shows the results independently per each trial as the following (I have pasted here only 4 trials just to understand it and not all the 20 trials);

ans =

    B    R2         m          c     
    1    0.98463    0.35271    13.224

ans =

    B    R2         m          c     
    2    0.96652    0.26335    12.687

ans =

    B    R2         m          c     
    3    0.95112    0.21396    13.082

ans =

    B    R2         m          c     
    4    0.93795    0.18173    13.783

My Question is: How can I tell Matlab to give me all the above values under one heading (I mean to look like a table format) as in the following (which I did it by my hand):

    B    R2         m          c
    1    0.98463    0.35271    13.224
    2    0.96652    0.26335    12.687
    3    0.95112    0.21396    13.082
    4    0.93795    0.18173    13.783

Answer 1

[Jacob Halbrooks]

This looks like a good use case for the TABLE function in MATLAB. You can create a table with your data variables and get a nice display of your data:

 >> B = [1;2;3;4];
 >> R2 = [0.98463; 0.96652; 0.95112; 0.93795];
 >> m = [0.35271; 0.26335; 0.21396; 0.18173];
 >> c = [13.224; 12.687; 13.082; 13.783];
 >> t = table(B,R2,m,c)

 t = 

     B      R2          m         c   
     _    _______    _______    ______

     1    0.98463    0.35271    13.224
     2    0.96652    0.26335    12.687
     3    0.95112    0.21396    13.082
     4    0.93795    0.18173    13.783

See the Tables doc for related functions and examples of adding and removing data from a table.

[Hameed Salih]

Thanks for assisting me.However, your answer doesn't satisfy me since we have "for loop" here and "B,R2,m,c,t" are variables that have new values every new iteration. So that is mean the output gives me up to 20 results one by one. What I want is I need a command or may be a sentence of string that can arrange all of them in a table like the one you mentioned.This should be inside the source code. I do not want to arrange them later in the way you did because it is not practical. Again thanks for your help.

[Jacob Halbrooks]

You can create an empty table before your FOR loop and then add a row of data in each iteration of the loop. For example, before the loop initialize the table with:

   t = table([],[],[],[],'VariableNames', {'B','R2','m','c'});

Within your loop, your variables will get new values, which you can concatenate with t as shown below.

   % Iteration 1
   B = 1; R2 = 0.98463; m = 0.35271; c = 13.224;
   t = [t; table(B, R2, m, c)];

   % Iteration 2
   B = 2; R2 = 0.96652; m = 0.26335; c = 12.687;
   t = [t; table(B, R2, m, c)];