Matlab

regexp formatting for decimal numbers
Hi, I have been practicing the various different regexp formats you can get but now I'm getting confused. Can someone tell me how to best format and match a simple number with a decimal place i.e. 0. , -3.9, 1.99999, 1.0, 2. , -999. etc the numbers I would like to match can of course vary, the best I can do is: r... 17 Apr 2010 17:25

working with .txt process content
I'm working with a text file that has a short story in it. And the txt name is called story.txt In matlab i open the file by doing shortStory = fopen('story.txt','r') % So that opens the story in read mode Heres my question. I wish to make a for loop using fgetl to copy each line into a Cell Array... I was ... 17 Apr 2010 18:32

matlab function variable to workspace
Hi, My question about sending a matlab value to workspace and then use it in a simulink model. I ve written a matlab function as an m-file and I run a simulink model inside the function using the 'sim' command. I have to run this function many times through the GA toolbox by varying some parameter... 20 Apr 2010 15:57

Image pointer problem
Hello Everyone, I have 460 images in datasets, and i wanna take image from 300 to 350 i took it also , but , tmp=reshape(images(y,x,:),1,NIMAGES); (its not working properly ), some error is coming , because i used this function before ,that time i started image from 1 to 25 , then its working good, but when i too... 18 Apr 2010 16:23

matlab code for calculating hilbert marginal spectrum of a signal
plz...anyone send me the matlab code for calculating "hilbert marginal spectrum of a signal"... brief description:- i hav already written the code for "hilbert spectum" of my signal.. but now i need to find out "hilbert marginal spectrum".. plz.. anyone help me... ... 12 May 2010 13:36

Erorr:Subscript indices must either be real positive integers
> Old code: syms x; for i=0:24 E(i)=int(((0.09)*x^(2)*exp(-0.3*x)/factorial(2)),i,i+1); end Revised code: syms x; for i=1:25 E(i)=int(((0.09)*x^(2)*exp(-0.3*x)/factorial(2)),i-1,i); end Thankk you so much Mr.Walter Roberson ... 17 Apr 2010 12:59

GUI tool for image volume browser
Hi, I am hoping to find an easy-to-use GUI-based image volume browser that can allow me to navigate through the image volume. It doesn't seem to be difficult to write my own, but just to check if there are any existing GUI tools out there. I have searched, but didn't really find. Thanks very much. ... 17 Apr 2010 12:59

how to overlay multiple images
Hi, I know I can put multiple images as "layers" in Photoshop, and then set the transparent value for each layer so that I can have a "fused" composite image. I just wonder how I can achieve the same from within Matlab (because these images are obtained in Matlab in the first place). Any good way to do this? Than... 17 Apr 2010 12:59

getting a grey image after cropping
i want to crop a region of the image by using it's rows and columns.. i use the following code... e=imread('w.jpg'); h=30; i=e(60:520,30:490); imshow(i); the original image is coloured but after i crop the image i is will be in greyscale why is it so...and i don't want to use imcrop function... thanking you.... 17 Apr 2010 14:06

Converting ROC Curve
Hi, I can evaluate my test performance with Confusion Matrix like that: 0.9130 0.0870 0.0730 0.9270 Bu I should make ROC analysis. How can I convert this confusion matrix to ROC curve on MatLab? Sincerly.. ... 17 Apr 2010 11:52