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A question about boxplot Hi everyone! I have a quick question about the horizontal axis in a boxplot. Suppose I have two variables X and Y, X=[1,2.3,4.6], for each value of X, I have a group of Y-values, so I want to draw a boxplot in matlab with horizontal axis the X-values. I use the following code boxplot(Y); But the resulting ... 20 May 2010 16:06
Xtick and Xticklabel handeling. Hello Serval, I tried to use your code for an other y data. However the Y axis has always 0:0.1:1 values overwritten on my real data. X axis is perfect but Y is not.. I tried to add this part but still no progress. Could you comment on Y axis? ax(3)=axes('position',get(ax(2),'position'),'Visible', 'off'); set(a... 20 May 2010 13:52
Plot the edges of a surface Hi, I have the x and y data of a 2D surface. I want to plot only the edges of this surface. How can I do that? ... 24 May 2010 04:44
How Data Acqusition Toolbox control sample rate in Simulink The simulink can be set as variable step or fixed step. Does this mean DAQ block will have the same sample interval as the simulation step size, no matter whether it is variable step or fixed step? Thanks a lot ... 20 May 2010 13:52
Parsing Log Files with Matlab I am attempting to write a script to parse some log files containing timestamped sensor data, and separate out each variable into individual arrays for each sensor. For example: 18 16:25:54.723 - - 121,EPV,AftCurrent,0.44,A 18 16:25:54.750 - - 51,Fore Rudder,PX,96, 18 16:25:54.751 - - 63,Aft Thru... 27 May 2010 15:56
reshape a matrix (can I use reshape or reshapec?) I would like to take a MxNxL matrix and get a M*NxL matrix. I know I can do this with two for loops A = MxNxL for ii = 1:N for jj = 1:M a = A(jj,ii,:); end end but I was hoping to you a reshape tool. And I want to keep the order given in this for loop. I found this but I don't know if it will help m... 20 May 2010 12:46
Region boundary extraction post-edge detection Hello MATLAB experts, I was looking for a way to close regions given incomplete boundaries/edges generated by edge detection methods (specifically, the sobel method). The edge detection (from the .m file 'edge') gives good results using the sobel filter, but about 90% of the time the regions are never complet... 20 May 2010 16:06
Quadratic Cost Function x^T Q x Hello, I have a (quadratic) non-linear problem of the type x^T Q x. Specifically the non-convex objective function is given by J = SUM ||x^T Qi x||^2 for i <= 3. My goal is to find arg min x, i.e. the values for the vector x. Q is a symmetric 3 x 3 matrix and x is a vector of length 3. This is why i <... 23 May 2010 11:21
convert to polar coordinate hi... I want to make sure if my way is correct to convert my image to polar coordinate or not, If not please tell me the correct way. img=imread(imageName); img= imresize(img, [500 500]); % find the Cartesian coordinate [x,y]=find(img); % convert from Cartesian to polar [theta,radius]=cart2pol(x,y); %The arr... 20 May 2010 13:52
variable Phase shift in Simulink Hi, I am trying to add a Sinusoidal jitter to my clock. The clock is a square wave. i tried the variable time delay block but it doesn't work. Please help Reagards, Agabr ... 20 May 2010 12:46 |