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Column-wise AND operation in all column combinations of two matrices
This should do it: C = bsxfun(@and, a, reshape(b,[12,1,3]); theresult = C(down,column_a,column_b);

quasi 12 anni fa | 0

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Finding and using sparse matrix indices
If L is the same size as M: idx = find(L); Move the idx around by adding 1 (moves it down one), or by adding the number o...

quasi 12 anni fa | 1

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problem with input arguments
You need to supply those arguments to the function, by calling it like: tempo_var_with_silly_long_name = 5; %use the real va...

quasi 12 anni fa | 0

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How to join several matrices into one matrix?
Either of these will do what you've asked. matrix = reshape(matrix,4794,588); matrix = permute(matrix,[1 3 2]);

quasi 12 anni fa | 0

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Loop or no Loop?
You need to figure out the right process for splitting your dataset. Something like: dlat = abs(diff(latitude)); da...

quasi 12 anni fa | 0

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ok button gives error:Subscript indices must either be real positive integers or logicals. Error using waitfor Error while evaluating uicontrol Callback
That error is because, somewhere in your code you've got something like number = -1; array(0) or array(1.4) or array(23,0)...

quasi 12 anni fa | 0

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How to a creat a sweeping radius, like that of a radar.
This is NOT the full answer, but it should get you started. a = plot([0 xmax],[0 0],'r-'); hold on b = plot(x,y,'bx'); ...

quasi 12 anni fa | 0

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Rotate surface X Y Z around Y axis
The obvious issue is that you're updating X, then using the updated X to calculate a new Z. Store the old X, or the new one, ...

quasi 12 anni fa | 0

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Numeric column, text column, uitable using guide
This is how I'd do it: Table_o_values = [1 561 1; 2 156 2; 4 951 3]; In the 3rd c...

quasi 12 anni fa | 0

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save data from function to ws
You have three options. 1. Use evalin or assignin correctly to put the variable into the base workspace. 2. Change your ...

quasi 12 anni fa | 0

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Subscript indices must either be real positive integers or logicals. Error!
(row-widthless):(row+widthmore) Thats probably giving you a negative (or zero) number which you're trying to use as an index...

quasi 12 anni fa | 0

Risposto
What are the commands for a function that allows the user to input arguments and store them in the variables x and y?
Can you be more specific? How do you want the user to input arguments? The functions, "input", "inputdlg", "uigetfile", al...

quasi 12 anni fa | 0

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How to train a Neural Network with an input data set that comprises of numeric values as well as nominal variables (such as the base fluid used which could be either 'Water', 'Oil' or 'Slickwater')?
You could make your non-numeric values into numeric ones by using enumerations. E.g. Oil = 1; Water = 2; Slickwater...

quasi 12 anni fa | 0

Risposto
making an array 'skip' some numbers
left_x = -4:-2; right_x = 2:4; x = [left_x right_x]; You could do also something like: x = [-180:10:-110 -105:5:-...

quasi 12 anni fa | 2

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i plotted a graph its X-axis ranging from 0-1800 with a spacing of 200. how can i change the interval to 50 with same range(0-1800)
Starting after you've plotted it: set(gca,'XTick',[0:50:1800])

quasi 12 anni fa | 0

Risposto
writing out data within a for loop
MMCmatrix{m} = [max mean count]; should be: MMCmatrix(m,:) = [max mean count]; or MMCmatrix(:,m) = [max mean...

quasi 12 anni fa | 0

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Why imerode( ) is not giving intended results ?
Its cause your filter isn't 3x3.

quasi 12 anni fa | 0

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AMD @ 4x4.1Ghz slower than Intel @ 2x1.7Ghz
Does the old laptop have: A bigger cache? - Allowing faster memory access to a small area of memory? A better cache least ...

quasi 12 anni fa | 0

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how run two codes at the same time from GUI?
The best you can probably sensibly do is just use parallel computing. Something like parfor i = 1:2 if i == 1 res...

quasi 12 anni fa | 0

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Macros in Matlab - repeating simple instructions
Step 1: Write a "function" that takes as input, an argument for filename in, and filename out, opens & reads your input file, do...

quasi 12 anni fa | 1

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Risposto
Which is the machine precision of Matlab?
Matlab stores and operates on doubles. Doubles have 15-ish significant figures of precision. If you keep your numbers all ro...

quasi 12 anni fa | 0

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Risposto
3D matrix - 2 D plot, how to make a plot ?
Have you tried: plot(relor(:,:,1)') %? If you do it explicitly, you'll get exactly what you want: plot(relor(:,1,1),'...

quasi 12 anni fa | 0

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Can I run 2 versions of a function in 2 different Matlab sessions?
You most certainly can run Version 1 of function "blah" in one instance of matlab, update blah to version 2, open up a second in...

quasi 12 anni fa | 1

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trying to minimize the memory of a matrix with sparse
Sparse only saves memory if your array is _dominated_ by 0. That is exactly zero, and not small numbers. The memory used by ...

quasi 12 anni fa | 0

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Clean it up from successive calculation
Data formats tell you what the data represents. Doubles are actually the best, commonly used, method to store signed numbers wit...

quasi 12 anni fa | 0

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Is Simulink suited to simulate trains on a rail system?
Simulink can simulate discrete systems operating in a continuous world. It can replicate the functions of hardware. What asp...

quasi 12 anni fa | 0

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Save FOR loop data into a vector
You need your for loop to index into X, rather than use X as the index. for j = 1:numel(X) i = X(j); your code as norm...

quasi 12 anni fa | 0

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(MATLAB beginner) How can I solve this error: In an assignment A(:) = B, the number of elements in A and B must be the same.
Ick. Data is a cell array that contains a cell array that contain arrays. Data{1,1}{index3+1}(52:58) is 7 characters long. ...

quasi 12 anni fa | 1

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Risposto
Being more concise with an IF statement
I'm assuming that CN only has one column. number = CN(count6); temp(1,:) = bond_atom; temp(all(temp==0,2),:) = []; CNo...

quasi 12 anni fa | 0

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What happens when numbers get very small?
Matlab simply uses standard double format numbers. This gives you about 15 significant figures of precision from 10^-300 to ...

quasi 12 anni fa | 0

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