Matlab

how to call simulink model from mfile
i want to run the simulink model for some n times by taking different value for a variable. how can it be done. ... 2 Feb 2010 15:25

Urgent! problem with axes
Yeah, you basically get a signal that's energy as a function of frequency (cycles per second, Hz). I'm not sure of the exact units - it depends on what you start with. You're starting with Volts. I'm not exactly sure of the FFT units - maybe it's Watts or something related to that, but I'd have to do some studyi... 2 Feb 2010 15:23

adding previous elements
Hello, I am new in Matlab and I don't know how to add an element to the next element in my vector (i+1). I tried several loops but couldn't make them work. Here is an example: A=[2 2 2 2]; I want "B" to be: B=[2 4 6 8] My vectors are actually thousands long, so I need a method to easily create such ki... 2 Feb 2010 15:23

Running Plot Commands on Parallel Processor
I am taking data in and processing it in real time and then plotting live feedback using "plot". I am running a dual-core processor, would it be possible to render the plot commands on one processor while the other one is acquiring data and processing it? How would I go about doing this? ... 2 Feb 2010 15:23

princomp function
hi all, I wrote the code to read the training images and then I formed a matrix using the face images as a column of this matrix. I applied pca on this matrix by using princomp but this error is shown: "??? Error using ==> minus Integers can only be combined with integers of the same class, or scalar doubles. Err... 2 Feb 2010 15:24

Question about crop image
Image taken from http://images.google.co.uk/imgres?imgurl=http://www.uni-regensburg.de/Fakultaeten/phil_Fak_II/Psychologie/Psy_II/beautycheck/english/durchschnittsgesichter/m%2801-32%29_gr.jpg&imgrefurl=http://www.uni-regensburg.de/Fakultaeten/phil_Fak_II/Psychologie/Psy_II/beautycheck/english/durchschnittsgesichter/d... 5 Feb 2010 21:46

GUI, pausing/waiting for keystroke - out of sync
I have a strange problem involving a GUI containing a "run" button and an axes. The idea is: press "run" button -> enter a loop -> use "pause" at each iteration to let user look at drawing in GUI axes --> user presses any key to go to next iteration. At i = 1, there is no problem. User done looking at drawin... 2 Feb 2010 15:23

dendrogram label
Hi, I am plotting a dendrogram, but the dendrogram labelling are two big, so everything overlaps. Is there a way I can change the font size of the dendrogram labelling. My code is h=dendrogram(Z,0,'labels',names); I tried set(h,'FontSize',6), but it did not work, and gives me an error saying "??? Error usin... 2 Feb 2010 15:25

initializing multiple arrays/cell-arrays
Is there a way to initialize several arrays to zero? For instance: uas=zeros(1,3); vas=zeros(1,3); vbs=zeros(1,3); or ua=cell(1,4); va=cell(1,4); vb=cell(1,4); in this example, there are only two sets of three arrays but say if I had several more. ... 2 Feb 2010 15:23

how can i get minimum positive value in an expression number of solutions, give me the code for this
eror on mat lab code ??? Error using ==> sym.double at 29 DOUBLE cannot convert the input expression into a double array. If the input expression contains a symbolic variable, use the VPA function instead. how we converting the symbolic expression to an array.. for example Er=[ 23,56, -89,24,......] this is... 2 Feb 2010 15:23