Matlab

please help
how to model shadow fading as a lognormal random variable in MATLAB?? anyone know??? please help thank you ... 13 Apr 2010 21:49

how to update anfis premise&consequence parameters?
Hi, I'm Victor Gomez from Torreón, México, I'm seraching the same that you did about "how to update anfis premise & consequence parameters?" I wonder if you found something that were useful, if you did, could you pass me that information?? my e-mail is vsdeleon(a)hotmail.com Thanks a lot =) Best regards V... 23 Apr 2010 17:37

creating a matrix based on condition vector
hi! i have some code from which i'd like to eliminate the for loop, is it possible? a=[2 4 5 6 7]; b=[3 5 8 2 6]; bool=[0 1 0 0 1]; result=ones(size(a)) for i=1:length(bool) if bool(i) result(i)=a(i); else result(i)=b(i); end end %output: result=[3 4 8 2 7] this is a simplific... 13 Apr 2010 22:55

handles are numbers?
I'm working on a GUI through GUIDE, I want to open an image in an axes, use radio button group to specify an input ICC profile and a popupmenu to specify an output profile, and when I click a pushbutton, the profile will be assigned to the image and display the converted image in a new axes. However, I got the probl... 13 Apr 2010 22:55

simple image filter routine - newbee
Hi... i apologize for what may be trivial to most. I am new to Matlab and have not figured out how to fully optimize my routines. Anyway... I am trying to read in an image of size rows x cols(817x1544). In which i use a 32x32 tile to compute the mean and replace the 4 center elements with the mean of the 32x32 ... 14 Apr 2010 20:03

Remove duplicates from a vector
x(find(diff([x;eps]))) I think this fixes the problem. (unless the last value of x is eps) x(find([diff(x);1])) That should also do the trick. No matter the scenario, you always want to grab the last value. Alistair W Smith <aws33(a)student.canterbury.ac.nz> wrote in message <3BE86E6C.E9769800(a)student.can... 13 Apr 2010 18:28

Surf Plot - Contradictory Data Type Errors
I have encountered contradictory errors while trying to perform a surf plot on non-double datatypes. Example code: a=256*rand(5); b=uint8(a); surf(b) Warning: CData must be double or single unless it is used only as a texture data Warning: CData must be double or single unless it is used only as a texture... 14 Apr 2010 12:08

code for function equality
Hi, I have two functions f1(x1,x2) and f2(x1,x2). I want to get the value of x1 and x2 from interval (a,b) such that f1=f2 (up to n- decimal). More clearly, choose x1,x2 from (a,b); if |f1(x1,x2) - f2(x1,x2)|<0.00001 done if |f1(x1,x2) - f2(x1,x2)|>0.00001 choose another x1 and x2 and again it will c... 13 Apr 2010 18:28

Simulink state-space
Hi, I am trying to use a state-space block in Simulink. I have several (eventually need 100) and would like to find their sum as well as being able to use just the last element. I currently am trying to run my model with just four states. I have mux-->function-->state-space-->demux I have set the demux to h... 13 Apr 2010 22:55

Transfer function manipulation
I have a TF I wanted to plot using a step input. However, I have more zeros than poles and MATLAB won't plot that. So I divided the num by the den to get a remainder and a quotient. Original TF: (more zeros than poles) 0.1741 s^7 + 137.8 s^6 + 511.8 s^5 + 888.8 s^4 + 662.1 s^3 + 166.9 s^2 -------------------------... 13 Apr 2010 17:19