Matlab

serial communication
Hello, I am trying to use modbus communication on a RS232 (serial port), and able to successfully communicate with my device. But the data acquisition speed is really slow i.e when I tried tic;fprintf(s,str,'async'); %write modbus;toc It took approximately 0.065 to 0.1 sec to write to the serial port. I wanted ... 18 Jun 2010 10:12

uiwait multiple figure interface
hello, i have a problem concerning the uiwait. I look at the forum and others webpages without finding any relevant information. My problem is the following : I have manually created a tabbed GUI with uitabpanel. In the interface there are several parameters that the user can configure. When parameters are selec... 18 Jun 2010 10:12

fprintf problems
my script is the following: clear all; fid = fopen('Q_HK_Bechernbach.txt','r'); file = textscan(fid, '%f %17c %f %f','headerLines', 1, 'Delimiter',','); date=datenum(file{2}, 'dd.mm.yyyy HH:MM'); lgt=length(date); work(:,1)=file{1,4}*0.001; % generate daily timeserie stime=floor(date(1)); etime=floo... 18 Jun 2010 10:13

Stateflow Transition (MultiLine)
Is there a syntax that lets me put the transition text over multiple lines, on a transition with many conditions, having it all on one line is quite cumbersome/long? ... 18 Jun 2010 11:19

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how could I deal with such error message
I am calculating the similarity in a big and very sparse matrix which dimensions are 940*1600, I use the command of pdist(matrix,'cosine'), however, I got the following error message Error using ==> pdist at 174 Some points have small relative magnitudes, making them effectively zero. Either remove those points, or... 18 Jun 2010 09:07

How to create a function that makes a .txt file w/ file name as parameter
Hello folks, in need of a little help. I'm trying to construct a function that would create datapoints according to some equations and rules I've entered & parameters that are given by user. Everything works fine, but with the current code I can only make a file "testdata.txt". I'd like to change this so that the us... 21 Jun 2010 13:33

Setting data logging for signals originating in stateflow diagram
Hi all, I'm trying to set a data logging for signals in Simulink Model from the command line. %The script looks for a signal with a given name: sig_handle = find_system(ModelName,'FindAll','on','LookUnderMasks','all','Type','line','Name',sig_name); % Then it gets a handle for a source block: srcport_handle = g... 18 Jun 2010 06:57

fungtion smaller memory
Can you help me, can function under these modified to use smaller memory =========================================== % Purposes % This function assembly matrix base on row and col. % information % For example take matrices % A1=[0.178857384;0.57896014;0.635206968;0.437880448] % A2=[0.389532694;0.449666857;0.8212... 20 Jun 2010 01:23

Getting the names of files open in the editor?
"Bill Whiten" <notthis.W.Whiten(a)uq.edu.au> wrote in message <hsgj3v$a8v$1(a)fred.mathworks.com>... I would like to find a method of reading the names of the files open in the editor. I work on several different projects, which use different sets of files. I would like to save the names of the files open in t... 18 Jun 2010 06:57