Matlab

controlling time of plotting for a for loop
Hi all, I'm trying to plot several plots on one figure using one forloop, and I would like to delay the second, third, and subsequent plots x seconds after the previous plot begins to plot. For example, the second plot begins to plot 2 seconds after the first, the third plot plots 2 seconds after the second, and so... 30 Jul 2010 12:58

looping again
I think my earlier post may have been misunderstood; i have 310 .mat files - from these 310 files i want to : sequentially open up a variable - spreadMat : calculate an average of each of the numbers in spreadMat : insert the numbers into a matrix, where the dimentions are (length(dates), length(AveragDailySpre... 29 Jul 2010 19:36

deleting callbacks
I have registered couple of callbacks with my uicontrols. I have two questions (both might be quite silly): (1) When I delete a control [delete(handle);], do I get rid of the callback too; or it keeps lingering in some space and I have to explicitly get rid of it? (2) If i want to delete a callback, for example I wan... 30 Jul 2010 02:07

fclose failure and "closed" file pointer coming back
I have this weird problem using fclose/fopen. I have a file that fopens successfully, then closes successfully, but it able to be used after it is fclosed. So it's basically something like %-------------------------- fp1 = fopen('file1','a') %do some fwrites to fp1 fclose(fp1) fp2 = fopen('file2','a') %an ftel... 30 Jul 2010 19:39

How to quickly generate list of traversal schemes
I have ran into a speed barrier on a piece of code I'm working, and I hope some of you guys can offer any advice on my problem. I have to determine the best way to connect source points to destination points for use in a blob tracking algorithm. Because of the non descriptive nature of the blobs, I effectively have... 30 Jul 2010 19:39

ANCOVA
I would like to do an ANCOVA analysis on my data. I have a measure (thickness) and two groups (study, control). I want to see if there is a significant difference in the thickness between the two groups, co-varying for age. How do I do this in matlab? I have already tried anova1, anova2, anovan, and aoctool, but ... 30 Jul 2010 10:46

3-D polar plot
I want to plot a surf plot of a matrix of data I have in polar coordinates. So for instance: theta=[0 .1 .2 .3]; r=[1 2 3 4]; data=[1 2 3 4;5 6 7 8;9 10 11 12; 13 14 15 16]; Obviously I could plot it using surf(theta,r,data) but the coordinate system is wrong. I want something like polar3d. I tried polar3d at... 2 Aug 2010 12:32

xPC target external signal triggering and data logging
Is it possible to log the data of one signal based off the trigger level of another and only log when the trigger occurs? ... 29 Jul 2010 17:24

Data Cursor in Matlab Figure
Hi, Currently, when I use a data cursor inside a figure, I can display the x,y position. What I want, however, is to, base on x,y, position, read from IM=imread(location(x,y)); and figure; imshow(IM). Is there a way to do this? For now, when I click on 'Edit Text Update Function' in cursor mode, I can only mod... 29 Jul 2010 19:36

looping
Hi i have a number of .mat files and basically want to operate a string such that it opens a particular variable (spreadMat) from the .mat file, creates an average and then puts the row into a matrix) and then repeats this process for the rest of the .mat files so far i have written rootDir = 'C:\Users\Alex Eptas... 29 Jul 2010 19:36