Matlab

Listbox Default String
Hello all, How can I set the default items in a listbox to a txt array? Nothing I do in the property manager seems to work, so there has to be code. If I type: set(handle,'string',txt) the values change when I click on the default string 'lisbox', but I need it to say [txt] where the 'listbox' is displayed. A... 28 Jun 2010 22:45

Are MEX files still useful for speed?
I have an m-file function that uses a for-loop that repeats many times. Unfortunately, it runs rather slowly. I heard that transforming it into a MEX file could possibly speed it up. I tried doing this automatically using the mcc -x command, but got this message: rror using ==> mcc Error: -x is no longer supported.... 29 Jun 2010 08:31

Selecting Files in a folder
Greetings: I would like to select all the .bmp files in a folder for image analysis. Right now, how I do this is by uigetfile command, which then opens up a dialog box for me to select files and I select all the .bmp files. Is there a way to skip the dialog box and have it automatically choose all the image files in t... 28 Jun 2010 19:28

How to count how many times ech row has been repeated?
Hi, I have a matrix consisting of a large number of rows. I need to know which rows has been repeated exactly the same more than once and how many times they have been repeated. For Example if A= [ 1 2 3 ; 4 3 5; 1 2 3; 1 2 3; 4 3 5; 5 2 1; 3 2 1; 3 5 1] then I should get something like the following: 1 2 3 : 3... 3 Jul 2010 09:03

Obtaining the pixel values of two black points in an image!
Hi there. I desperately need help on this topic. I am trying to obtain pixel values for two black points automatically with a single command on Matlab workspace for an input image which is http://img4.imageshack.us/f/twopoints1.jpg/, in this image, there are two black points, and i want to find the pixel values of tho... 29 Jun 2010 04:09

Image Construction
Hi Folks, I am trying to construct an image of an object provided that I have multiple amplitude signal data for numerous points within the object. I can import these amplitude signal data in EXCEL in csv format. How can I construct image from this in MATLAB? Please help me out! Sincerely, Anish ... 30 Jun 2010 18:41

str2num
how do I use STR2NUM to turn a 10000x6 character array that looks like: #NAME? #NAME? #NAME? : : #NAME? into a 10000x1 Matrix that looks like: NaN NaN NaN : : NaN Thanks for the help! ... 28 Jun 2010 19:28

Standalone application
Hello to all of the Matlab community, Recently I received the task of making my Matlab applications to run on computers with no Matlab environment installed. I used mcc to create these standalone applications, but when I try them on another computer they do not work (it tells me that a certain dll is not found). Mo... 29 Jun 2010 08:31

AM
Hello, I am using matlab to implement an AMdemodulation I do not know how to use it properly a) Envelop detector + lowpassfilter+ dc block b) envelop detector+dcblock Which one is the best option ... 29 Jun 2010 10:44

Tracking object paths across sparse array
I have about 500 sparse arrays each showing the location of between 1 and 10 planes. I have taken all of these arrays and put them into 1 sparse array which shows (when output as an image) the plane's flight paths represented by dots across the image. I now need to isolate each planes flight path from one another an h... 30 Jun 2010 17:35