# Adam

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

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**Content Feed**

add text above the legend on pie chart

I can't run your code to test, but lgd1.Title.String = "percentage values" should work (instead of passing it into the call to...

13 dagar ago | 0

Matrix array in a strange format

It's a sparse array so that is standard. You can use: full( kio ) to convert to a full (standard) matrix if you wish, though ...

ungefär 2 månader ago | 1

| accepted

Question

Is it possible to disable parent node selection in a uitree?

Is there any way to disable certain nodes in a uitree from being selectable? In particular I have a situation similar to that s...

ungefär 2 månader ago | 1 answer | 0

### 1

answerHow to not use a for loop

function I = intMidpointScalar(f, a, b, n) j = 0.5:n; h = (b-a)/n; x = a + j * h; I = sum( h * f(x) );...

ungefär ett år ago | 0

| accepted

Iteration is not stopping. Can you please help thanks.

Which iteration is not finishing? You have a nested for loop and two while loops in that code. I assume you mean one of the wh...

mer än ett år ago | 0

Question

Change to code formatting behaviour in editor in R2021b?

Does anyone know if this is a change in default formatting behaviour for indents and formatting behaviour or whether I am just m...

nästan 2 år ago | 2 answers | 6

### 2

answersRemoving "head" entry from doubly linked list

Unless I am totally misunderstanding (possible given my initial confusion in my comment) your class works fine. What isn't fine...

nästan 2 år ago | 1

| accepted

how to find the count of unique values of a column in a array?

doc histcounts should give you the number of each of the elements in your array, so long as you parameterise it correctly if yo...

nästan 2 år ago | 0

| accepted

how to create a vector with known indices numbers

result = vector( positions ); will give you this, if what you mean is you want the numbers from those positions of vector rathe...

nästan 2 år ago | 0

| accepted

what does k = 0:25.5:255 function means

doc colon It means create an array starting at 0, incrementing by 25.5 each time, with a maximum value of 255. Easiest way to ...

nästan 2 år ago | 0

| accepted

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],...

mer än 2 år ago | 2

| 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...

nästan 3 år 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...

mer än 3 år 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...

mer än 3 år 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 = [...

mer än 3 år 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...

mer än 3 år ago | 1

| accepted

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 );

mer än 3 år 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...

mer än 3 år ago | 1

| 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...

mer än 3 år 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...

mer än 3 år ago | 0

| accepted

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...

mer än 3 år 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...

mer än 3 år 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?

mer än 3 år ago | 1

| accepted

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

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

mer än 3 år 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.

mer än 3 år 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...

mer än 3 år 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...

mer än 3 år 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=...

mer än 3 år 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.

mer än 3 år ago | 1

| accepted