"ehsan mirrahimi" <ehsan.mirrahimi@mathworks.com> wrote in
message <fd3s5h$4av$1@fred.mathworks.com>...
> dear friends
> I want to find intersection of this plots:
>
> http://imageupload.com/~imageupl/show.php/25075_cross.jpg.h
> tml
>
> the blue one plot is a .mat file and the red plot is:
>
> Th=.1453*ones(527,1);
> plot(Th);
>
> I need the source to find the intersection points.
> thanks.
Hi,
Suppose your blue line data is stored in vector a, then
intersection = find((a - 1)== 0);
HTH,
Yang
Subject: How can find Intersection of this two Plot
In article <fd3s5h$4av$1@fred.mathworks.com>,
"ehsan mirrahimi" <ehsan.mirrahimi@mathworks.com> wrote:
> dear friends
> I want to find intersection of this plots:
>
> http://imageupload.com/~imageupl/show.php/25075_cross.jpg.h
> tml
>
> the blue one plot is a .mat file and the red plot is:
>
> Th=.1453*ones(527,1);
> plot(Th);
>
> I need the source to find the intersection points.
> thanks.
"Yang Zhang" <zhyang99@hotmail.com> wrote in message
<fd3tcl$it2$1@fred.mathworks.com>...
> "ehsan mirrahimi" <ehsan.mirrahimi@mathworks.com> wrote
in
> message <fd3s5h$4av$1@fred.mathworks.com>...
> > dear friends
> > I want to find intersection of this plots:
> >
> > http://imageupload.com/~imageupl/show.php/25075_cross.jpg.h
> > tml
> >
> > the blue one plot is a .mat file and the red plot is:
> >
> > Th=.1453*ones(527,1);
> > plot(Th);
> >
> > I need the source to find the intersection points.
> > thanks.
>
>
> Hi,
> Suppose your blue line data is stored in vector a, then
>
> intersection = find((a - 1)== 0);
>
> HTH,
> Yang
Dear Yang
but my answer:
Intersection=find((R_detect_squared-1)==0)
Intersection =
Empty matrix: 0-by-1
why??
Subject: How can find Intersection of this two Plot
Doug Schwarz <see@sig.for.address.edu> wrote in message
<see-90B0A1.16305022092007@news.frontiernet.net>...
> In article <fd3s5h$4av$1@fred.mathworks.com>,
> "ehsan mirrahimi" <ehsan.mirrahimi@mathworks.com> wrote:
>
> > dear friends
> > I want to find intersection of this plots:
> >
> > http://imageupload.com/~imageupl/show.php/25075_cross.jpg.h
> > tml
> >
> > the blue one plot is a .mat file and the red plot is:
> >
> > Th=.1453*ones(527,1);
> > plot(Th);
> >
> > I need the source to find the intersection points.
> > thanks.
>
>
> I think my intersections.m will work out for you:
>
>
<http://www.mathworks.com/matlabcentral/fileexchange/loadFi
le.do?objectId
> =11837&objectType=FILE>
>
> (watch for wrapped URL)
>
> Something like
>
> [x,y] = intersections(x_blue,y_blue,[0 600],[0.1453
0.1453]);
>
> --
> Doug Schwarz
> dmschwarz&ieee,org
> Make obvious changes to get real email address.
Your m file link is invalid!!!!
Subject: How can find Intersection of this two Plot
In article <fd4en1$cl0$1@fred.mathworks.com>,
"ehsan mirrahimi" <ehsan.mirrahimi@mathworks.com> wrote:
> Doug Schwarz <see@sig.for.address.edu> wrote in message
> <see-90B0A1.16305022092007@news.frontiernet.net>...
> > In article <fd3s5h$4av$1@fred.mathworks.com>,
> > "ehsan mirrahimi" <ehsan.mirrahimi@mathworks.com> wrote:
> >
> > > dear friends
> > > I want to find intersection of this plots:
> > >
> > >
> http://imageupload.com/~imageupl/show.php/25075_cross.jpg.h
> > > tml
> > >
> > > the blue one plot is a .mat file and the red plot is:
> > >
> > > Th=.1453*ones(527,1);
> > > plot(Th);
> > >
> > > I need the source to find the intersection points.
> > > thanks.
> >
> >
> > I think my intersections.m will work out for you:
> >
> >
> <http://www.mathworks.com/matlabcentral/fileexchange/loadFi
> le.do?objectId
> > =11837&objectType=FILE>
> >
> > (watch for wrapped URL)
> >
> > Something like
> >
> > [x,y] = intersections(x_blue,y_blue,[0 600],[0.1453
> 0.1453]);
> >
> > --
> > Doug Schwarz
> > dmschwarz&ieee,org
> > Make obvious changes to get real email address.
>
>
> Your m file link is invalid!!!!
No, it's not. I said to watch out for the URL being wrapped. you may
have to paste the two parts separately into your browser. Try again,
please:
"ehsan mirrahimi" <ehsan.mirrahimi@mathworks.com> wrote in
message <fd4egj$acu$1@fred.mathworks.com>...
> "Yang Zhang" <zhyang99@hotmail.com> wrote in message
> <fd3tcl$it2$1@fred.mathworks.com>...
> > "ehsan mirrahimi" <ehsan.mirrahimi@mathworks.com> wrote
> in
> > message <fd3s5h$4av$1@fred.mathworks.com>...
> > > dear friends
> > > I want to find intersection of this plots:
> > >
> > >
> http://imageupload.com/~imageupl/show.php/25075_cross.jpg.h
> > > tml
> > >
> > > the blue one plot is a .mat file and the red plot is:
> > >
> > > Th=.1453*ones(527,1);
> > > plot(Th);
> > >
> > > I need the source to find the intersection points.
> > > thanks.
> >
> >
> > Hi,
> > Suppose your blue line data is stored in vector a, then
> >
> > intersection = find((a - 1)== 0);
> >
> > HTH,
> > Yang
>
>
>
> Dear Yang
> but my answer:
>
> Intersection=find((R_detect_squared-1)==0)
>
> Intersection =
>
> Empty matrix: 0-by-1
>
> why??
>
>
Hi,
I forgot the .1453 term:
intersection = find(abs(a - .1453)< 0.001);
Hopefully this time you got something make sense.
Yang
Subject: How can find Intersection of this two Plot
Doug Schwarz <see@sig.for.address.edu> wrote in message
<see-22955D.21464822092007@news.frontiernet.net>...
> In article <fd4en1$cl0$1@fred.mathworks.com>,
> "ehsan mirrahimi" <ehsan.mirrahimi@mathworks.com> wrote:
>
> > Doug Schwarz <see@sig.for.address.edu> wrote in
message
> > <see-90B0A1.16305022092007@news.frontiernet.net>...
> > > In article <fd3s5h$4av$1@fred.mathworks.com>,
> > > "ehsan mirrahimi" <ehsan.mirrahimi@mathworks.com>
wrote:
> > >
> > > > dear friends
> > > > I want to find intersection of this plots:
> > > >
> > > >
> > http://imageupload.com/~imageupl/show.php/25075_cross.jpg.h
> > > > tml
> > > >
> > > > the blue one plot is a .mat file and the red plot
is:
> > > >
> > > > Th=.1453*ones(527,1);
> > > > plot(Th);
> > > >
> > > > I need the source to find the intersection points.
> > > > thanks.
> > >
> > >
> > > I think my intersections.m will work out for you:
> > >
> > >
> >
<http://www.mathworks.com/matlabcentral/fileexchange/loadFi
> > le.do?objectId
> > > =11837&objectType=FILE>
> > >
> > > (watch for wrapped URL)
> > >
> > > Something like
> > >
> > > [x,y] = intersections(x_blue,y_blue,[0 600],
[0.1453
> > 0.1453]);
> > >
> > > --
> > > Doug Schwarz
> > > dmschwarz&ieee,org
> > > Make obvious changes to get real email address.
> >
> >
> > Your m file link is invalid!!!!
>
> No, it's not. I said to watch out for the URL being
wrapped. you may
> have to paste the two parts separately into your
browser. Try again,
> please:
>
>
<http://www.mathworks.com/matlabcentral/fileexchange/loadFi
le.do?objectId
> =11837&objectType=FILE>
>
> --
> Doug Schwarz
> dmschwarz&ieee,org
> Make obvious changes to get real email address.
Ok I excute your m file but I think it works wrong!
eamine my data with your mfile plese .
thanks.
Public Submission Policy
NOTICE: Any content you submit to MATLAB Central, including personal information, is not subject to the protections which may be afforded information collected under other sections of The MathWorks, Inc. Web site. You are entirely responsible for
all content that you upload, post, e-mail, transmit or otherwise make available via MATLAB Central. The MathWorks does not control the content posted by visitors to MATLAB Central and, does not guarantee the accuracy, integrity, or quality of such content.
Under no circumstances will The MathWorks be liable in any way for any content not authored by The MathWorks, or any loss or damage of any kind incurred as a result of the use of any content posted, e-mailed, transmitted or otherwise made available
via MATLAB Central. Read the complete Disclaimer prior to use.
Feed for this Thread
