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**Content Feed**

How to find the frequencies of a time series which contain datetime ?

I think it's absrud to even think about peforming spectral analysis on such a intermittently-sampled signal, but the only thing ...

ongeveer een uur ago | 0

how to plot hexagon inside boundary?

As a starting point... N=6; t=2*pi*(1/(2*N):1/N:1).'; x=cos(t);y=sin(t); fill(x,y,'k') axis square hold on hH=fill(x+2*ma...

ongeveer 17 uur ago | 1

Excel Spreadsheet Autofill Range (Multiple rows) via MATLAB command

Start by creating a macro that does what you want done and look at in in VBA -- I usually just paste it into the MATLAB editor a...

ongeveer 18 uur ago | 0

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Hello everyone, I want to restrict the domain of a vector to return it to a smaller data set. For example, X between 2 and 7

Perfect use for my utility function iswithin >> x=1:10; >> x=x(iswithin(x,2,7)) x = 2 3 4 5 6 7 >>...

ongeveer 19 uur ago | 0

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How to change the font size of xtick and ytick with scientific notation on the side?

x=linspace(0,2.1E-4); y=randn(size(x)); >> plot(x,y) >> hAx=gca; >> hAx.FontName='Times New Roman'; >> hAx.FontSize=12; >> ...

ongeveer 22 uur ago | 0

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Plot with x-axis label in Hour instead of Second

tT=readtable("Q.csv"); tT=addvars(tT,seconds(1:height(tT)).','before','Temp','NewVariableNames','T'); tT.T.Format='h'; plot(t...

ongeveer 22 uur ago | 0

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I want to create a bar3 plot for the contribution of two parameters as like in figure

OK...had a few minutes -- try Z=B(3:end,3:end); % save the data portion of the overall arrray; MATLAB will, I think) just...

ongeveer 23 uur ago | 0

Find country code from city name

Postal codes helps for many countries, yes...although there are some that either don't have or don't use one, if all your addres...

1 dag ago | 0

index exceed the number of arrays elements

length_collective=length(Collective); %equals to 124 length_single=length(single); %equals to 393 for i=1:1:length(Collective)...

1 dag ago | 1

Why does num2str() of 138.97 return 138.96999999999999886?

Wrong expectation for floating point numbers -- short story is if a fraction is not exactly representable by 1/2^n, it'll not be...

1 dag ago | 0

Merge 864 single column text files and 60,000 rows in single file. How to get a matrix with 60000 rows and 864 column

It would be simpler if you had named the files so they would sort lexically as C001, C002, ... etc., but it's still not too bad....

2 dagen ago | 0

A compact way to find single digit numbers (i.e. numbers between 0 and 9) and replace them with two digit numbers

For what purpose and in what context? You will only be able to show the leading zeros if you convert the numeric values to some...

2 dagen ago | 0

Legend command not working when plotting figure

Try something like figure pbaspect([1 1 1]) loglog(ElectronEnergy(:), [ElectronDifFlue(:) ElectronSolMinDifFlue(:)], 'LineWid...

2 dagen ago | 0

Delete selected worksheet from Excel

OK, I'll create new Answer to move out of the previous longish comments and to reflect what I now (think) I know that I wasn't f...

3 dagen ago | 0

Winopen does not work on executable

I've packaged it (winopen) in another app and it works fine. Looking at the above code snippet, I'd hypothesize your problem is...

3 dagen ago | 0

How to have top x axis with different scale as compared to bottom x axis for same plot?

Try fhe FEX submission <plotxx-m FEX> -- I've not used it, but looks like it does nice job...

3 dagen ago | 0

Fast fourier tranformer for Time series data

No disagreements at all with what @Bjorn Gustavsson notes, just do a baseband PSD and look at the signal some... First, look at...

3 dagen ago | 1

Delete selected worksheet from Excel

excelName1= fullfile(newPath,excelFile); %file name and address, worksheet to be deleted from this Excel. Excel = actxser...

4 dagen ago | 0

How to create a textbox using annotation, that includes matlab shapes?

While apparently theoretically possible to mung on the vertices of an annotation object to change the shape -- figure hF=gcf; ...

4 dagen ago | 1

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Delete selected worksheet from Excel

You don't seem to be following the path I laid out but reinventing the wheel and changing coding styles... The thread <Excel Ut...

4 dagen ago | 0

R-squared analysis of scatter plot resulting in NaN

'Pends on how you did it -- show your code for exact answer to that direction, but -- If you have the Statistics TB, then use ...

4 dagen ago | 0

merge six columns with zeros step by step end of each one

It would be far easier to write code if you would use cell array for the existing data instead of a bunch of named variables -- ...

4 dagen ago | 0

How do I run the function for each value in array?

clear global Tth1 Tth2 A B data= ... Therein lies your problem -- you wrote a script instead of a function -- get rid of th...

5 dagen ago | 0

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how to copy sheet from one excel to another sheet of excel.

OK, here's a barebones routine that works to duplicate the given sheet, placing it after the copied one and names it to the requ...

5 dagen ago | 0

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How can I edit code so only bottom graph is displayed.

W/o the data and w/o knowing what didn't work, the simplest way to just get the second plot alone by itself would be to just dra...

5 dagen ago | 0

How to Extract ROI on a signal with additional rows before and after threshold

It's gotten too convoluted -- yes, the original answer does, as noted in the last comment, only return the first/last -- your or...

5 dagen ago | 1

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How to remove one single quote at the beginning of a string?

The MATLAB function to retrieve the extension and filename is fileparts and to rebuild a new one is fullfile But, in this case...

6 dagen ago | 0

Multi Colors and Legend for each bar

Slightly different, using a colorbar is nice alternative; legend is somewhat problematical owing to design of bar in that it's o...

6 dagen ago | 0

how to copy sheet from one excel to another sheet of excel.

Had a few minutes so poked around a little as explained above... Excel = actxserver('Excel.Application') excelFullFileName=ful...

6 dagen ago | 0

Change value based on the values of another column

If there's always at least one zero before the new -ive value excepting the initial element, then ix=find(diff(sign([0;x]))==-1...

6 dagen ago | 0