Professional Interests: Signal Processing, OOP, Matlab GUI programming, Machine Learning

Answered

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...

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...

24 hours ago | 0

Answered

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...

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...

1 day ago | 0

Answered

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...

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...

2 days ago | 0

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Answered

Combine two or more gaussian components into one Gaussian Mixture (gmdistribution)

Doesn't GC = gmdistribution( [muX; muY], cat( 3, SX, SY ), [1; 1] ); work?

Combine two or more gaussian components into one Gaussian Mixture (gmdistribution)

Doesn't GC = gmdistribution( [muX; muY], cat( 3, SX, SY ), [1; 1] ); work?

9 days ago | 0

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Answered

divide 3d matrix (840,64,1536) by 1d matrix (1536,1)

A ./ reshape( B, [1 1 1536] );

divide 3d matrix (840,64,1536) by 1d matrix (1536,1)

A ./ reshape( B, [1 1 1536] );

12 days ago | 1

Answered

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.

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.

15 days ago | 1

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Answered

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...

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...

15 days ago | 1

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Answered

" 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...

" 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...

15 days ago | 0

Answered

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=...

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=...

19 days ago | 0

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Answered

what is wrong with my script?

2:4 means [2, 3, 4] A( [2 4], [2 4] ) would give what you want.

what is wrong with my script?

2:4 means [2, 3, 4] A( [2 4], [2 4] ) would give what you want.

19 days ago | 1

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Answered

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 ...

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 ...

19 days ago | 0

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Answered

Matrix creation combining vectors

M = [ repmat( V1(:), [numel(V2), 1] ), repelem( V2(:), numel( V1 ) ) ];

Matrix creation combining vectors

M = [ repmat( V1(:), [numel(V2), 1] ), repelem( V2(:), numel( V1 ) ) ];

20 days ago | 0

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Answered

Help with restricting input

validateattributes( number, { 'numeric' }, { 'scalar', '>=', 1, '<=', 100, 'integer' } ) You would have to put a message togeth...

Help with restricting input

validateattributes( number, { 'numeric' }, { 'scalar', '>=', 1, '<=', 100, 'integer' } ) You would have to put a message togeth...

21 days ago | 0

Answered

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...

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...

21 days ago | 1

Answered

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...

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...

22 days ago | 1

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Answered

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 ...

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 ...

23 days ago | 0

Answered

expand length of matrix to fixed value

t = interp1( 1:108, t, linspace(1, 108, 200 ) ); would be one way to do it.

expand length of matrix to fixed value

t = interp1( 1:108, t, linspace(1, 108, 200 ) ); would be one way to do it.

26 days ago | 1

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Answered

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...

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...

27 days ago | 1

Answered

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 ...

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 ...

27 days ago | 0

Answered

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...

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...

28 days ago | 0

Answered

How to manipulate array?

Just use it! Where you are going to use my_columns, just use number_columns, e.g. newMatrix = zeros( number_rows, number_colum...

How to manipulate array?

Just use it! Where you are going to use my_columns, just use number_columns, e.g. newMatrix = zeros( number_rows, number_colum...

28 days ago | 0

Answered

How can I use my CNN after training (Image Recognition)

When you saved the file the network was called 'thisNetwork'. That is what this instruction saves: save('TheTrainedCNN','thisN...

How can I use my CNN after training (Image Recognition)

When you saved the file the network was called 'thisNetwork'. That is what this instruction saves: save('TheTrainedCNN','thisN...

28 days ago | 0

Answered

How to know where the >> are in the command window?

Just use fprintf('AAAAAAAAAAAAAAA\n') instead and it will put the new line at the end so that the >> will be on the next line ...

How to know where the >> are in the command window?

Just use fprintf('AAAAAAAAAAAAAAA\n') instead and it will put the new line at the end so that the >> will be on the next line ...

2 months ago | 0

Answered

Avoiding many if-Statetments in a for-loop

Something like this would seem to do the job, off the top of my head, though I may be over-simplifying it... case1 = V2 && V3; ...

Avoiding many if-Statetments in a for-loop

Something like this would seem to do the job, off the top of my head, though I may be over-simplifying it... case1 = V2 && V3; ...

2 months ago | 0

Answered

What does z(1) and z(2) mean in that context?

z(1) and z(2) mean the same as they would in any code - there is an expectation that z is an array with (at least) 2 values, oth...

What does z(1) and z(2) mean in that context?

z(1) and z(2) mean the same as they would in any code - there is an expectation that z is an array with (at least) 2 values, oth...

2 months ago | 2

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Answered

Index must be a positive integer less than or equal to the number of test sets.

selectBatch(k) is a cell array, which clearly is not an integer. selectBatch{k} may be what you want instead. That said, you...

Index must be a positive integer less than or equal to the number of test sets.

selectBatch(k) is a cell array, which clearly is not an integer. selectBatch{k} may be what you want instead. That said, you...

2 months ago | 0

Answered

check a condition once and remember it later in the code

Potentially you can change your if statement to the following, but it depends on what nu is as this does not seem to be defined ...

check a condition once and remember it later in the code

Potentially you can change your if statement to the following, but it depends on what nu is as this does not seem to be defined ...

3 months ago | 1

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Answered

Variable inside timer callback is lost after first iteration in GUI - undefined function or variable

This seems like the opposite problem to what I originally thought it was as I got distracted by the handles and assumed they wer...

Variable inside timer callback is lost after first iteration in GUI - undefined function or variable

This seems like the opposite problem to what I originally thought it was as I got distracted by the handles and assumed they wer...

3 months ago | 1

Answered

Increase levels on colorbar

If you create the colourbar and keep its handle, e.g hColourbar = colorbar( hAxes ); then you can edit the properties of the c...

Increase levels on colorbar

If you create the colourbar and keep its handle, e.g hColourbar = colorbar( hAxes ); then you can edit the properties of the c...

3 months ago | 0

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