Choosing elements from a 2D array

Hi all,

I have a 2D array int that has fixed avues of 1 on its second column but different values on its first column. How can I select the values from its first column to be within a range of .

int = [1.8702 1.0000 ; -0.8739 1.0000 ; 3.1069 1.0000 ; 0.9228 1.0000 ;-1.1946  1.0000 ; -0.1244 1.0000 ;...
    0.2662 1.0000 ;0.3586 1.0000 ;0.2288 1.0000 ;0.0003 1.0000 ;-0.2503 1.0000];

Any help would be appreicted.

Thanks.

Answer 1

[Voss]

int(int(:,1) >= 0 & int(:,1) <= 1,1)

[Lama Hamadeh]

Thank you for your reply. It is helpful, but the output is just one column (the selected elements from the first column). How can I have their assciated elements from the second column as well? In other words, I want the diemnsions of the output to be two columns with selected rows.

[Lama Hamadeh]

I know how:

int = [int(int(:,1) >= 0 & int(:,1) <= 1, 1) ...
    int(int(:,1) >= 0 & int(:,1) <= 1, 2)];

Thank you.

[Voss]

That will work. A slightly simpler way is:

int = int(int(:,1) >= 0 & int(:,1) <= 1,:);

(I wasn't sure before if you wanted all the columns or just the first one.)