How can i add all column values in a pattern and save simultaneously?

I have a matrix as

Px=[ Columns 1 through 9

      0.0574    0.0574    0.0574    0.0015    0.0112    0.0112    0.0574    0.0112    0.0574

    Column 10

      0.0112]

Now i want to add columns 1 to 10 and save first then add column 2 to 10 and goes on

PX=[Px(1)...+Px(10) Px(2)...+Px(10) Px(3)..+Px(10) Px(4)..+Px(10) Px(5)..+Px(10) Px(6)..+Px(10) Px(7)..+Px(10) Px(8)..+Px(10) Px(9)..+Px(10) Px(10)]

Please help me.... please please....

Answer 1

[dpb]

Px=fliplr(cumsum(fliplr(C)));

PS. In future, don't whine, it isn't becoming... :)

PPS

You can avoid one function call by writing the inner index reversal explicitly--I've no idea if would make any performance difference for large vector sizes or not.

Px=fliplr(cumsum(C(end:-1:1)));

Matlab doesn't have postfix indexing expressions so can't avoid the outer call.

[suchismita]

thank you :) i wont.... :)