Adam
Professional Interests: Signal Processing, OOP, Matlab GUI programming, Machine Learning
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Resize and sum a matrix
If you have the Image Processing Toolbox you can use blockproc something like the following: array2 = blockproc( array1, [n n],...
7 mesi ago | 1
| accepted
Whats the difference when using [ ] and : ?
key = [1 2 3 4 5 6 7 8 9 10]; res = reshape( key, 2, [] ); would give res = [ 1 3 5 7 9 2 4 6 8 10 ]; The [] indica...
8 mesi ago | 1
Get row and column of the closest value of a matrix from a variable
If you are using an up to date version of Matlab (scanning the release notes I think R2019a or later for the particular syntax o...
oltre un anno ago | 0
How to round the decimal values?
ceil( 0.7954 * 1000 ) / 1000 It should also be noted though that many seemingly 'round' decimal numbers cannot be perfectly rep...
oltre un anno ago | 0
Problem with loop index
Calculate the indices of all the rows you want to delete , then delete them all in one go afterwards, as e.g. rowsToDelete = [...
oltre un anno ago | 1
How to remove outlier by 2.5 standard deviations from the mean?
Looking at the help in doc filloutliers this should work: filloutliers(A,'center','mean','ThresholdFactor', 2.5) replacing A...
oltre un anno ago | 1
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How to make subplot accept the positions like matrix?
doc ind2sub This will convert linear indices to n-dimensional subscripts. e.g. [p(1), p(2)] = ind2sub( [3, 3], 2 );
oltre un anno ago | 1
| accepted
input vector fra edit text in guide GUI
sscanf( str, '%d' ) or str2num( str ) would both work if the input is e.g. "1 2 3 4 5 6", although the first returns a column...
oltre un anno ago | 0
| accepted
Defining a time varying function
if t < t0 result = a; else result = b; end gives what you want for this simple case, provided t0, a, b and t are al...
oltre un anno ago | 0
i have different result
Just get rid of the loop and vectorise: ProbDG=1-(1./T); DGT=-log(-log(ProbDG)); It can be done in a loop, but it's the end o...
oltre un anno ago | 0
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What are the options to use a script in app designer? and how to define it?
You don't have to, but you should want to as scripts are not suitable for going beyond just trying things out. Once you want to...
oltre un anno ago | 0
| accepted
How to get handle to legend in a specific axes?
Legends are parented by the figure, not the axes, so you get a list of figure children like this: >> get( gcf, 'Children' ) an...
oltre un anno ago | 0
| accepted
Combine two or more gaussian components into one Gaussian Mixture (gmdistribution)
Doesn't GC = gmdistribution( [muX; muY], cat( 3, SX, SY ), [1; 1] ); work?
oltre un anno ago | 0
| accepted
divide 3d matrix (840,64,1536) by 1d matrix (1536,1)
A ./ reshape( B, [1 1 1536] );
oltre un anno ago | 1
How do I extract the rows that have value 0 in one array from another new array?
newArray( ~thisArray, : ) where thisArray is the one you show here.
oltre un anno ago | 1
| accepted
What type of data (200 x 200 x 200)
It's an array. A 3d array to be precise, but just an array. A vector (as defined by isvector(...) )is an nx1 or 1xn array A m...
oltre un anno ago | 1
| accepted
" bsxfun(@rdivide..." Explain Use in Code
rgbh_e = bsxfun(@rdivide, rgbh_e, rgbh_e(4,:)); divides rgbh_e by by the 4th row of rgbh_e, on a per row basis - i.e. each elem...
oltre un anno ago | 0
In which Matlab version was rng() introduced?
https://uk.mathworks.com/help/matlab/release-notes.html?rntext=rng&startrelease=R2006a&endrelease=R2019b&groupby=release&sortby=...
oltre un anno ago | 1
| accepted
what is wrong with my script?
2:4 means [2, 3, 4] A( [2 4], [2 4] ) would give what you want.
oltre un anno ago | 1
| accepted
Arguments block syntax not being recognised
This was only introduced in 2019b (you can see at the bottom of the help page for 'arguments'). It is one of the disadvantages ...
oltre un anno ago | 1
| accepted
Matrix creation combining vectors
M = [ repmat( V1(:), [numel(V2), 1] ), repelem( V2(:), numel( V1 ) ) ];
oltre un anno ago | 0
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Help with restricting input
validateattributes( number, { 'numeric' }, { 'scalar', '>=', 1, '<=', 100, 'integer' } ) You would have to put a message togeth...
oltre un anno ago | 0
MATLAB Answers Wish-list #5 (and bug reports)
I realised I posted this in the ancient wishlist thread before. Can we not have some white space back between answers? Since t...
oltre un anno ago | 1
How to ignore letters in a numeric cell?
cellfun( @(x) str2double( erase( x, 'mm' ) ), pin_radius ) should convert them to an array of doubles. If you are using pre R2...
oltre un anno ago | 1
| accepted
why do I get Array indices must be positive integers or logical values?
It means pretty much exactly what it says. In Matlab x1, as you create it, is an array of values representing your function at ...
oltre un anno ago | 0
expand length of matrix to fixed value
t = interp1( 1:108, t, linspace(1, 108, 200 ) ); would be one way to do it.
oltre un anno ago | 1
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Create a plot with a drop down menu in an App
app is your main application object. You can add properties to this yourself, which you can then access in any of its functions...
oltre un anno ago | 1
Area plot does not recognize colormap
What was your 'older Matlab version'? If you keep the handle from an area plot you get an object (or objects, if you feed it a ...
oltre un anno ago | 0
Wish-list for MATLAB Answer sections.
Well, after the last update of Matlab Answers my biggest wish is now to put the white space back between the answers! I don't k...
oltre un anno ago | 0
