Matlab

How do I plot points on a graph with an image in the background.
MATLAB is not letting me plot a line of longitude and latitude coordinates onto an image I have imported from google maps. The longitude and latitude coordinates have a small value range on the x and y axes (x=50.7-50.9 y=1.02-1.03), wheras the image x and y values are much larger. I want to overlay the line plot of lo... 3 Aug 2010 03:49

Missing Matlab Operator
I an trying to covert on of my old GUIs to a new one. I keep getting an error "Missing Matlab Operator". All I have is a pushbutton and an Axes. The old GUI did work. Could you give me a few troubleshooting techniques one I my have overlooked. ... 3 Aug 2010 11:25

executable files
hi, sorry for the silly question, can I make an executable .exe file from .m file? I've got Matlab compiler on my computer, but it seems I need to use C++ in addition to it or something... thanks ... 3 Aug 2010 02:44

Filling in the space between two parallel lines with a color
Hello all, How do you go about coloring the space between two parallel lines on a plot? Fill() seems to be for closed shapes.. so that's no good. The line properties seems too complicated since I would need to somehow relate the width between my two lines with "points". Thanks! ... 4 Aug 2010 17:59

Periodogram PSD of a white noise
Hi guys, I understand that a PSD of a white Gaussian noise of is equivalent to its variance. However, I can't even close to get this value using Periodogram routine. I believe I've forget a scale factor somewhere. For example, I've a WGN of variance of 16, I run a very large number of data sequence through Pe... 6 Aug 2010 18:11

Image rotation detection probelm
I stumbled across this while trying to solve the same problem (determine rotation between 2 images). Thanks to those who posted here. You should only need the radon projection along one angle for one of the images. Also, the use of the FFT confused me so I have used it at the end to do the correlation in a more familia... 2 Aug 2010 21:20

3d SPLINE with constrains
Dear all, I am trying to construct a 3d spline (x,y)=z but the value of the splined z cannot go above 1 and below 0, but it can have the values 0 and 1. I am currently using the interp2(r,a',q0_1(:,:,k),x(2),x(1)','cubic') function, however, after checking my results, it is giving values for the output below 0. I ne... 3 Aug 2010 15:51

Bar graph - groups & stacked
I also have this question.... Can anyone please explain how to create a bar graph that is BOTH 'stacked' and 'grouped'. For example, a bar graph in which there is 2 bars at each x-axis tick, and each of those bars is 'stacked'. Thanks in advance! Jason ... 2 Aug 2010 20:14

Optimization of Neural Network Models
Hello, I would like some advice for a project of mine. Basically, I need to optimize a process which I am going to model using a neural network. The process has more than one outputs. For the following scenarios, which MATLAB optimization method is most suitable? 1. Optimizing all the outputs. (use gamultiobj?) 2. ... 3 Aug 2010 10:19

calculating returns
Hi all I want to calculate squared returns from data using a formular similar to squaredreturn=(log(lastprice(k)-lastprice(k-1)))^2 but obviously there is a problem since there is no data for lastprice(0). In addition i am already in a for k=1 loop, so i cannot simply start the loop from k>=2 Can any1 offe... 3 Aug 2010 07:03