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**Feeds**

How to display color intensity contour of gray scale image

Converting to gray is rgb2gray Displaying the image in the indicated way would probably be surf followed by a colormap call.

circa 3 ore fa | 0

Double integral problem with function handles to make the program faster instead of using symbolic

ksi and ita are undefined at that point. If you define them with syms then the integration works. syms ksi ita i=3; %actually ...

circa 4 ore fa | 0

| accettato

Why do i get the error (Array indices must be positive integers or logical values) when trying to calculate the determinant

det = det(M) There would not be any error the first time you ran that code. The first time, det would refer to the det determin...

circa 5 ore fa | 0

How to solve a task within Machine Learning Onramp Course?

You did not add a local function named extract to your file. A "local function" is one that is placed at the end of your code, s...

1 giorno fa | 0

| accettato

trying to speed up image exports

This test suggests that writing to ppm might potentially be faster, with writing to JPEG2 being notably slower. data = randi([0...

1 giorno fa | 0

Multiple nested for loops for machine learning model hyperparameters

for j =1:length(nfilterSize) %j is active at this level for k = length(nnumBlocks) %j and k are active at this level ...

1 giorno fa | 0

| accettato

CUDA seems not to be supported

There is a difference between the toolkit version and the nvcc version. The toolkit version is essentially the driver version th...

1 giorno fa | 0

I am not able to debug my script as follows

PaAVE1=(Pa1+Pa2)/2; You assign to PaAVE1 but you do not use PaAVE1 afterwards cPaAVE1=C*PaAVE; No variable PaAVE is defined. ...

2 giorni fa | 0

"For Iteration" output index appears to perform parallel selector indexing in series instead

It sounds as if you have something of the form for J = 1:length(FirstVector) %some operation end for K = 1:length(Second...

2 giorni fa | 0

Error install_mex while using OMEGA add-ons

Those are warnings. It is optional to compile in OPENGL support. It is optional to compile in ROOT support. ROOT support is to...

2 giorni fa | 0

Can MATLAB be used to call excel, calculate outputs, and place back into MATLAB Workspace iteratively in for loop?

Spreadsheet Link is for running MATLAB from within Excel, but you want the opposite, to run Excel from within MATLAB. Running E...

2 giorni fa | 0

How to generate a .dat from i q data?

Probably it goes something like this: filename = 'OutputFileNameGoesHere.dat'; [fid, msg] = fopen(filename, 'w'); if fid < 0 ...

3 giorni fa | 0

How to distribute runtime input values to two vectors?

You would use something like a = [a, i(n)]; ... making sure that you had initialized a before the loop.

3 giorni fa | 0

Zero pad using piecewise.

piecewise() requires that the first input be a symbolic expression. Your Vr+Va is likely numeric.

3 giorni fa | 0

Length command giving rise to array indices must be positive integers or logical values error

You start out by using the length() function call. But then you assign something to length(1) . That makes length into a variabl...

3 giorni fa | 1

| accettato

Maximum time of tic-toc function

To measure time, you could instead initialize a variable to the current time, and then elapsed_time = datetime('now') - base_t...

4 giorni fa | 1

Question about the syntax of a MATLIB code line creating one array from another

To answer this, you have to know that the result of indexing a column vector with a single vector is a column vector, and the re...

4 giorni fa | 0

Symbolic toolbox expressions in table() not shown as LaTeX in livescrit.

Correct. table() is not designed for fancy display formatting.

4 giorni fa | 0

Sparse matrix memory understanding

Sparse memory storage starts with a vector of pointers, with one element per column. The pointer content is 0 (NULL pointer) if ...

4 giorni fa | 0

Check for missing argument or incorrect argument data type in call to function 'expand'

I get the following : B = 1.0e+07 * 0.0000 0.0003 0.0103 2.5110 2.6503 -0.0500 Give the command format long g and display the...

4 giorni fa | 0

How to solve file not found error in matlab

file = uigetfile('*.xlsx'); That call returns only the name of the selected file, without returning any information about the d...

5 giorni fa | 0

| accettato

Unable to run local function "myparse"

You could potentially have that problem if your setup function is adding the directory to the end of the MATLAB path instead of ...

6 giorni fa | 1

Finding the 4-Way 2-Position Directional Valve (2P) Block

It is in Simscape Fluids, since R2021a. https://www.mathworks.com/help/hydro/ref/4way2positiondirectionalvalveil.html

6 giorni fa | 0

Exporting Simscape model from R2024a to R2021a and R2023a

No, you can only go back as far as (I think it is) R2022b from R2024a if you have Simscape blocks. Simscape reorganized and comp...

6 giorni fa | 1

ltefadingchannel built-in function

See https://www.mathworks.com/company/jobs/opportunities/search/ for job openings at Mathworks. See https://www.mathworks.com/...

6 giorni fa | 0

K Nested For Loops for arbitrary K

See sample code at https://www.mathworks.com/matlabcentral/answers/357969-using-recursive-function-to-calculate-all-possible-pep...

6 giorni fa | 0

Implementation if statement with two different conditions

for j=1:length(depth); if depth < 20 % F=1-Fs w=(10-0.5*depth(j)) else depth > 20 ...

7 giorni fa | 0

I am getting "Array indices must be positive integers or logical values" error when viewsolid is used. What does this mean and how to solve it?

You have viewSolid(z,0+0*x*y, x^2+y,x,0,sqrt(1+x^2),y,0,1); The fifth input is numeric 0. viewSolid is designed to test for t...

7 giorni fa | 0

What is the best technique to do image similarity on a pair of images that are only line segments and provides a value on how similar they are?

The best way is due to be invented in 1,719,483 years, 2 months, and 11 days, by some small furry creatures from Alpha Centauri....

8 giorni fa | 0

Simultaneously get output and plot using RF Propagation Toolbox functions

link() has internal code the is different when called with no outputs compared to one output. The code for no outputs calls a fe...

9 giorni fa | 0