I have a java.util.HashMap object that I want to convert generally into a MatLab datatype, perhaps the new containers.Map type. Ideally I could do: it = javaHashMapObj.keySet.iterator; while it.hasNext jkey = it.next; someMatlabObj(jkey) = javaHashMapObj.get(jkey); end Among other potential problems (please point out, resolve...
I am trying to find all the inputs/outputs of all MATLAB functions in our internal library. I am new (first time) to regex and have been trying to use the multiline mode in Python's re library. The MATLAB function syntax looks like: function output = func_name(input) where the signature can span multiple lines. I started with a patt...
Hello, I have a problem with matlab when I'm trying to create a a matrix with a very large size such as 40000x40000. for example: x=zeros(40000,40000); the error message is "??? Maximum variable size allowed by the program is exceeded. " is there any solution. Also I have another question, can we have a matrix with variable column...
hi currently i have the following code in my matlab values = [0;1;0;0;1;0;1;0]; % can contain only 0s and 1s h = modem.oqpskmod; y = modulate(h, values); g = modem.oqpskdemod(h); z = demodulate(g,y); BER = sum(logical(values(:)-z(:)))/numel(values);% thanks to gnovice! now my question ...
hi i was doing the following in matlab values = [0;1;0;0;1;0;1;0]; % can contain only 0s and 1s h = modem.oqpskmod; y = modulate(h, values); g = modem.oqpskdemod(h); z = demodulate(g,y); BER = sum(logical(values(:)-z(:)))/numel(values); % thanks to gnovice! before calculating the BER, do you think that i...
hello; I am trying to write a matlab mex function which uses libhdf5; My Linux install provides libhdf5-1.8 shared libraries and headers. However, my version of Matlab, r2007b, provides a libhdf5.so from the 1.6 release. (Matlab .mat files bootstrap hdf5, evidently). When I compile the mex, it segfaults in Matlab. If I downgrade my vers...
In MATLAB I have calculated the Fundamental matrix (of two images) using the normalized Eight point algorithm. From that I need to triangulate the corresponding image points in 3D space. From what I understand, to do this I would need the rotation and translation of the image's cameras. The easiest way of course would be calibrate the ca...
I have a set of 3 datasets which I want to plot in MATLAB, but the 'x' axis, I want to give in the form of a circle instead of of straight bottom line. Any idea on how to do it? An example plot: The normal command for plotting in MATLAB is plot(x, data1, x data2, x, data3), in that the x axis is taken as the straight line. I want the...
I'm trying to color code text in a legend. (Since I'm trying to sort several plots into different categories, I can't just rely on the line colors in the legend.) I've managed to set the text color for the entire legend, but I can't manage to assign it line by line. Is this possible? Code so far: list={'Label 1','Label 2','Label 3'}; l...
so if I run this function in matlab sim1(row,1:512)= ((image(row,1:512,1)-a(1,1))); it runs fine. now if I modify it to take the square like this sim1(row,1:512)= ((image(row,1:512,1)-a(1,1)))^2; it gives me the error, error using ==> mpower matrix dimensions must agree. Why is this giving me the error, I can do this element by e...
I have a function sumsurface that I use in the following code to display certain values in the command window: if sumsurface(i) < .01 && sumsurface(i) > -.01 disp(sumsurface(i)); disp(pH(i)); end However, I instead want to display sumsurface(i) and pH(i) on a display window in a GUI. How can I do this? ...
Hi, I am designing a structural optimisation program as part of my degree, and I need to run a sequence of optimisation code for a number of different structural sections. For each section, a number of different imposed loads will be defined and then the optimum form generated in response to this loading. In programming terms, I nee...
I want to write a sliding window algorithm for use in activity recognition. The training data is <1xN> so I'm thinking I just need to take (say window_size=3) the window_size of data and train that. I also later want to use this algorithm on a matrix . I'm new to matlab so i need any advice/directions on how to implement this correct...
I have two big arrays with about 1000 rows and 1000 columns. I need to compare each element of these arrays and store 1 in another array if the corresponding elements are equal. I can do this with for loops but that takes a long time. How can I do this faster? ...
Is there a Mathematica function that provides results equivalent to the unique() function in MATLAB? I realize I could use the Union[] function to obtain the unique elements of a list, but I would like something equivalent to the three-result version of the function that provides index arrays that map between the input array and the arra...
I'm trying to write a simple function that takes two inputs, x and y, and passes these to three other simple functions that add, multiply, and divide them. The main function should then display the results as a string containing x, y, and the totals. I think there's something I'm not understanding about output arguments. Anyway, here's ...
how i can classify pnn for feature extraction? ...
I have to use Matlab to read a picture and make a joint histogram and I'm new to Matlab. When I try to read the Image by using imread function it does not work. h= imread('a.tif'); ??? Error using ==> imread at 363 File "a.tif" does not exist. Can anyone help me figure out this problem? ...
Hello, Is it possible to call matlab functions from Silverlight / C# ? Thanks in advance! ...
I have two matrices in MATLAB lets say arr1 and arr2 of size 1000*1000 each. I want to compare their elements and save the comparison in a result matrix resarr which is also 1000*1000 such that for each element: if the element in arr1 is bigger than the one in arr2, place the value 1 in the result if the element in arr2 is bigger, stor...