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Question

VARFUN() vis a vis GROUPSUMMARY()

If one uses varfun() to group a set of variables, one can set the output variable name(s) as desired -- say one has an Amount fo...

1 month ago | 0 answers | 1

### 0

answersextracting matrices of numbers from a text file (txt) also containing words

https://www.mathworks.com/matlabcentral/answers/uploaded_files/1646741/test.txt f='https://www.mathworks.com/matlabcentral/answ...

2 months ago | 0

| accepted

Why does winopen not work well?

... outputName = fullfile(path, ,'ResSal_Type.xlsx']); writecell(Res, outputName, 'Sheet', 'Sheet1'); ... winopen(path) ......

2 months ago | 0

| accepted

How prevent the tab key from exiting the Text Area component

Using the uitextarea <callback function> would be the only way, but I don't think you will be able to make it work for the <\t> ...

4 months ago | 1

| accepted

rmoutliers and graph of the cleaned data

One additional comment -- you used cleanDatac2 = rmoutliers(cleanData(:,[1 3 5])); % IQR which treated each response variable ...

4 months ago | 1

How to make an app that does not loose data when it's closed?

Do you want/need the UITable to contain the previous data, too? Or just add onto the saved data what is new in the user table e...

6 months ago | 0

| accepted

Why does C{1}(1) work but C(1){1} results in an invalid array index error in MATLAB?

If you haven't yet, read <Access Data in Cell Array>. The reason is the cell contains an array; you must first dereference the ...

7 months ago | 1

| accepted

How can I selectively multiplying the negative values with (-1) in an excel file?

data=readmatrix('yourExcelfile.xlsx'); isneg=(data(:,2)<0); data(isneg,2)=-data(isneg,2); "Use the Force, Luke!" Here "the F...

7 months ago | 0

Remove Rows/Columns from Binary Image Matrix

A(:, (columns I want to remove))=[]. will remove everything from the top of the array to the bottom -- if there is a "spot" any...

7 months ago | 0

| accepted

Matlab generate normal random sample with outliers

The funny thing about random sampling is that it is, well, random. You're resampling with replacement so it is possible to pick...

7 months ago | 1

how to make strips of different colors and sizes in a bar plot?

It's been a notable hole in MATLAB graphics from the beginning that there are no builtin hatching patterns available; I've raile...

7 months ago | 1

I want a table of values (frequency versus power) for a cpsd plot

Read the doc for cpsd, examples illustrate using the outputs for plotting of various types...specifically the forms of the type ...

7 months ago | 0

I wanted to apply the chi-squared function with the return of the p-value, but matlab's chi2cdf function only returns zero.

% Example data matrix (2000 rows and 9 columns) data_matrix = randi([0, 10], 2000, 9); % Replace this with your actual data ...

7 months ago | 2

| accepted

why does the figure doesnt show the two vectors?

%Links length L1=5; L2=1; L3=5; L4=7; AP=5; % ternary link angle (degree) delta=50; th2= 0:1.2:360; range_th2=300; RP=ze...

7 months ago | 1

What frustrates you about MATLAB? #2

>> tAdd.IP=7; To assign to or create a variable in a table, the number of rows must match the height of the table. >> No au...

7 months ago | 0

Upper limit on the number of UIAxes children allowed

Don't call plot3 (or friends) multiple times for such, update the data properties of the one having been called or use the anima...

7 months ago | 0

Change properties in gscatter, based on the group label

load carsmall subplot(1,2,1) gscatter(Displacement,Horsepower,Model_Year) % default appearance subplot(1,2,2) hGSC=gscatter...

7 months ago | 1

| accepted

How to change position of both ylabels in yyaxis left, within a subplot enrivonment?

hAx=subplot(3,2,1); yyaxis left plot(rand(10,1),'bx-') hLabL=ylabel('Yleft') yyaxis right plot(rand(10,1),'ro-') hLabR=yla...

7 months ago | 1

| accepted

Question

Retrieve Compiled App Project Info at Runtime

<This Question> asked about retrieving version from compiled app; TMW Staff answered on Windows only by getting the details of t...

7 months ago | 1 answer | 0

### 1

answerHow can I mark the central point in annotate box

I=imread('https://www.mathworks.com/matlabcentral/answers/uploaded_files/1524096/image.png'); imshow(I) figure colormap gray ...

7 months ago | 0

Regression function NaN r values

A = importdata("Fundicion_gris.txt"); B = importdata("Acero_embuticion.txt"); sigma_mpa_embuticion = B.data(:, 1); epsilon_l_...

7 months ago | 0

| accepted

Error using matlab.internal.math.interp1, Sample points must be unique.

As the follow on comment above shows, you can safely ignore the duplicate points and retain the original function -- use [~,iu]...

7 months ago | 0

Streamlining of zeroing out last 2 bits of fixed 16 bit number?

I have no knowledge of how Fixed-Point Designer stores stuff, but can you not do something like x=bitand(x,0xFFFC) ?

7 months ago | 1

Is it possible to use gscatter in matlab app designer?

Works with R2021b; I do not know at what release the support for uiaxes was introduced; used to be able to get to the doc for ...

7 months ago | 0

Is "Undocumented Secrets of MATLAB Java Programming" by Yair Altman still up to date?

<Mathworks is abandoning Java>, going forward, <Java will be just another external language>. There's no incentive to go down t...

7 months ago | 0

Could someone please assist me? My code for the buck-boost converter controller isn't working properly when I run it.

<We already told you> this was going to be a problem but you didn't pay attention... if inputVoltage == 0.3 || inputVoltage == ...

7 months ago | 0

| accepted

How do I extract the audiodata from a struct that I got from dir(fullfile.....

"how do I get the audiodata from within the struct that is created by dir(..." See dir documentation; dir() doesn't return file...

7 months ago | 2

| accepted

extracting rows of data

% % Find the indices within the specified range % indices = (data(:, 1) >= minVoltage) & (data(:, 1) <= maxVoltage); % % Extra...

7 months ago | 1

How to iterate through a cell array and link elements in particle tracking?

I don't have time at the moment to attack in earnest, but I'd probably start by simplifying and instead of trying to make it all...

7 months ago | 0

Hello, if you have a moment, I could use your help in resolving this error.

inputVoltage=0.3; [q1, q2, q3, q4]=buckBoostControl(inputVoltage) function [q1, q2, q3, q4] = buckBoostControl(inputVoltage, ~...

7 months ago | 1