CATALIGN

cat / concatenate and align (left-, right-justify or center) numbers / text / ... in any dimension with padding

catalign concatenates variables in any dimension regardless of their sizes by padding them up to the minimum required length.

Some Examples:

· concatenate variables with non-matching sizes along dimension 1, padding with zeroes.

>> x = catalign(1,0,[1 2],[3;4;5])
x =
     1     2
     3     0
     4     0
     5     0

· place three vectors/arrays to a separate page, padded with NaNs, align to the highest indices

>> x = catalign(-3,NaN,[1 2 3],[4 5;6 7],[8;9])
x(:,:,1) =
   NaN   NaN   NaN
     1     2     3
x(:,:,2) =
   NaN     4     5
   NaN     6     7
x(:,:,3) =
   NaN   NaN     8
   NaN   NaN     9

· concatenate char arrays, right-justified

>> x = catalign("r",' ',{'right-','justified','text'})
x =
    '   right-'
    'justified'
    '     text'

· mix images

% Concatenate rgb image data along dimension 4, with center alignment for
% dimension 1 and right alignment for dimension 2
pel = uint8(0);
dm  = [0.5 -1 1 0]; 
impepp = imread('peppers.png');
imcorn = imread('corn.tif',2);
imcope = catalign(dm,pel,impepp,imcorn);
figure, imshow(max(imcope,[],4))