MATLAB Central Newsreader - monotonic increasing or decreasing

monotonic increasing or decreasing

Mike — Sat, 03 Oct 2009 03:02:59 -0400

Hi

I search the web, but don't find any command about monotonic check.
Given a series of data, I'd like to check if it is monotonic
increasing or decreasing.

Mike

Re: monotonic increasing or decreasing

Matt Fig — Sat, 03 Oct 2009 03:11:01 -0400

One approach:

x = [1 2 3 4 5 6]
all(diff(x)>0) % increasing
% But now:
x(7) = 3
all(diff(x)>0)

Re: monotonic increasing or decreasing

Mike — Sat, 03 Oct 2009 03:16:31 -0400

On Oct 3, 11:11 am, "Matt Fig" <spama...@yahoo.com> wrote:
> One approach:
>
> x = [1 2 3 4 5 6]
> all(diff(x)>0) % increasing
> % But now:
> x(7) = 3
> all(diff(x)>0)

Thank you. It works.

Mike