Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » Software » comp.soft-sys.matlab

Topic: Text data save
Replies: 7   Last Post: Oct 14, 2013 5:09 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Bizuayehu Mohammed

Posts: 18
Registered: 5/14/09
Re: Text data save
Posted: Oct 14, 2013 1:24 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

dpb <none@non.net> wrote in message <l3h4o0$mqt$1@speranza.aioe.org>...
> On 10/14/2013 8:09 AM, Debela wrote:
> ...
>

> > I have a matrix size 1200x750;
> > If I wanted to find the maximum values on all 1200 files I can use the
> > one suggested by Steven. I used that to find the maximum values and I
> > still have questions about the idea mentioned just above by dpd. I want
> > to find for all 1200 files the 0.005* of the maximum and 0.8*of the
> > maximum.
> > file=1200x750;
> > x=file(1,:); % the first file
> > xmax=max(x);
> > b=find(x>=0.8*xmax);
> > b1=b(1);
> > c=find(x>=0.005*xmax);
> > c1=c(1);
> > and I want to save these c(1) and b(1) values. This perfectly works if I
> > work for each file individually but I want to find for all files (1200).
> > Any ideas would be appreciated.

>
> First some clarification and questions so are on the same page...
>
> It's somewhat confusing to refer to an array as a file--generally one
> thinks of a file as an externally-stored disk file and when speaking of
> them in the plural as a multitude of same.
>
> Is it so that you're really speaking of an array (matrix) in memory as
> the above indicates in code? That is, is this actual code that returns
> what you want or is it some pseudo-code trying to express what you would
> like to get from a sequence of files?
>
> Secondly, presuming it really is an array and you're looking for these
> values by column inside the array, the above returns the first (and only
> the first) of what may be multiple values that meet the criteria.
> Is that what is wanted or do you need all values?
> Sorry about the confusion created due to this, yes it is an array as shown on the code. The code only returns the first , and basically I want similar thing, but I want all the first numbers in column. By the way this code works if I am only interested the one column.
> --




Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.