I want to add column 1st from data1 and coloumn 1st from data2, likewise addition of all coloumn.

DATA1

4 8 6

3 5 7

1 9 2

DATA2

7 8 4

5 2 4

1 7 9

Answer 1

[Stephen23]

MATLAB makes these things really easy:

>> A = [
     4     8     6
     3     5     7
     1     9     2];
>> B = [
     7     8     4
     5     2     4
     1     7     9];
>> A + B
ans =
    11    16    10
     8     7    11
     2    16    11

Note that it would probably be a bad idea to create three separate variables: programming is easiest when you keep your data together as much as possible (e.g. in one array, like I show), because then you can loop and apply to functions to an entire array.

Answer 2

[Explorer]

DATA1= [4 8 6; 3 5 7; 1 9 2]

DATA2= [7 8 4; 5 2 4; 1 7 9]

C1_sum=DATA1(:,1)+DATA2(:,1) % Sum of 1st Columns of DATA1 and DATA2

C2_sum=DATA1(:,2)+DATA2(:,2) % Sum of 2nd Columns of DATA1 and DATA2

C3_sum=DATA1(:,3)+DATA2(:,3) % Sum of 3rd Columns of DATA1 and DATA2

[Guillaume]

DO not number variables. As a rule, if you start numbering variables you're doing it wrong. You can't easily iterate over the variable (to apply the same function to each for example). And this obviously does not scale. What if you have 100 columns? Are you going to copy/paste the same line 100 times and edit each to change the index?

Use cell arrays or higher dimension matrices to store related variables. What is the point in creating three different variables to store 3 columns when they could all be stored in one matrix?

[Explorer]

I guess, this is how Sunil wants to add.