Matlab

how to compare variable precision numbers
Hi, I'm using variable precision arithmetic to do some calculations. I need to check that fractional part of the result is less then a value. In the code I have something like res = vpa ( <expression> ) if (res - fix(res) < 1.0e-9 ) .... I get error "Function 'lt' is not defined for values of class 'sym'." ... 1 Dec 2009 17:16

xpc target from file
Hi, I'm fairly new to the xPC toolbox so I'm trying to start slow... real slow. All I want to do is use simulink blocks to have the xPC target read a file consisting of doubles and ouput the values to a scope. Nothing fancy since I'm just starting out. I created an xpc configured file using the xpcbytes2file comma... 1 Dec 2009 17:16

Speech Signal Separation for Voice/Unvoice parts
Hello, all. As a part of my Degree project, I need to use Matlab for voice/unvoice separation of the recorded speech file. For now I can record a file in Matlab, and calculate an Average Zerro-Crossing, Autocorolation and Short-time Energy. But afterward I need to "show" or to separate recorded signal to "voiced" an... 18 Dec 2009 15:00

??? Input argument "x" is undefined.
Hello, I am trying to run this progam on Matlab 7.8 but I keep getting this error message for about an hour... script file is: function y = simpson(f,a,b,n) b=5; a=1; n=5; h=(b-a)/n; x=linspace(a,b,n+1); fx=feval(fsimpz2,x); y=h/3*(fx(1)+4*sum(fx(2:2:n))+2*sum(fx(3:2:n-1))+fx and function file ... 1 Dec 2009 15:00

Converting Binary images/Grayscale images to move frames
ImageAnalyst <imageanalyst(a)mailinator.com> wrote in message <071db063-25fb-462f-9327-7af81cc580d7(a)c14g2000yqm.googlegroups.com>... On Aug 21, 2:47?pm, Robbie Plankenhorn <rplankenh...(a)gmail.com> wrote: I am trying to read in a movie, analyze it, and then write it back out. ?Mainly I want to threshold the m... 1 Dec 2009 16:08

Resampling with replacement
"Mohammed Khalilia" <mohammedsk(a)gmail.com> wrote in message <hf2fan$kv8$1(a)fred.mathworks.com>... Hi, I am trying to understand resampling with replacement. Basically, I have a dataset (2000 instances x 2 features) and a weight vector W (2000x1) and trying to produce a bootstrap replicate of the original data acco... 1 Dec 2009 13:53

mincx to gevp
hello eveybody, its possible to reformule between mincx and gevp problem? i.e: can i reformule a gevp problem and solve it with mincx or the inverse (a mincx problem and solve it with gevp). thnx in advance ... 1 Dec 2009 09:23

Precision lost with xlswrite?
Hi, I have a cell array of numbers and want to write it into a cell array of strings (this is because besides numerical input, there will also be added strings to the table. After this, the table of strings is printed to excel this is the input: 4 3,69599639557127 188,410000000000 86,0893000000000 6 7,088286452... 3 Dec 2009 10:20

java and simulink
Please, could anyone help me how to call simulink mdl scheme from m-file throught java code ??? ... 1 Dec 2009 08:17

Conversion of Maple symbolic equation to MATLAB function
I tried the example from http://www.mathworks.com/access/helpdesk/help/toolbox/symbolic/matlabfunction.html : syms x y z t r = x^2 + y^2 + z^2; matlabFunction(r, 'file', 'new_function',... 'vars', {t, [x y z]}); I always get the failure: ??? Error using ==> sym.matlabFunction at 55 Argument 'vars' failed v... 2 Dec 2009 13:14