MATLAB Function Reference

horzcat

Horizontal concatenation

Syntax

• C = horzcat(A1,A2,...)
  

Description

C = horzcat(A1,A2,...) horizontally concatenates matrices A1, A2, and so on. All matrices in the argument list must have the same number of rows.

horzcat concatenates N-dimensional arrays along the second dimension. The first and remaining dimensions must match.

MATLAB calls C = horzcat(A1,A2,...) for the syntax C = [A1 A2 ...] when any of A1, A2, etc. is an object.

Examples

Create a 3-by-5 matrix, A, and a 3-by-3 matrix, B. Then horizontally concatenate A and B.

• A = magic(5);            % Create 3-by-5 matrix, A
  A(4:5,:) = []          
  
  A =
  
      17    24     1     8    15
      23     5     7    14    16
       4     6    13    20    22
  
  
  B = magic(3)*100         % Create 3-by-3 matrix, B
  
  B =
  
     800   100   600
     300   500   700
     400   900   200
  
  
  C = horzcat(A,B)         % Horizontally concatenate A and B
  
  C =
  
      17    24     1     8    15   800   100   600
      23     5     7    14    16   300   500   700
       4     6    13    20    22   400   900   200
  

See Also

vertcat, cat

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