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How to copy a complex number in a cell with different sign of imaginary part?
v=[x conj(x{:})];

3年以上前 | 1

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Simulink: Use Enumeration As Index
Try something like idx=find(ismember(enumeration(Example),Example.value999)); A(idx) SIDEBAR: MATLAB enumeration classes are...

3年以上前 | 0

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FFT from .csv voltage and current data file
readmatrix and fft have examples that match up with your Q? -- if you have Signal Processing Toolbox, then there are more user-f...

3年以上前 | 0

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how to import csv file with along with its headers in the matlab?
Alternatively to one of @Star Strider's solutions, use the result of your version's readtable as the starting point, then read a...

3年以上前 | 0

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Customise axis ticks and ticks labels with exponential notation
See <Include Superscript and Subscript in Axis Labels> example at <xlabel> Moral: Read doc including looking at examples...

3年以上前 | 0

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Plotting rows of a specific column of similar value on separate figures
When you want a new figure for every one, that pretty-much means splitapply isn't going to be all that handy because you can't d...

3年以上前 | 0

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How to Change the Exponential Scale in axis to linear scale?
Guessing at what you mean, precisely, try something like-- Dalton=8.227*exp(1)+6*exp(-7.9591*exp(1)*y); % use MATLAB vec...

3年以上前 | 0

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Load data (.csv or .isf) from any directory to process in Matlab Standalone Application (App Designer)
Well, you got the filename and path to it, but you didn't use the path -- ... D1= readmatrix(fullfile(path,filename)); ... Y...

3年以上前 | 0

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Plotting rows of a specific column of similar value on separate figures
Try something like g=findgroups(zt(:,1)); hAx=axes;hold on splitapply(@(y)plot(y),zt(:,3),g) legend("Group "+unique(g)) If ...

3年以上前 | 0

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Matlab replaces missing doubles by zeros instead of NaNs
The "WHY" goes back to original design of MATLAB and was the chosen behavior when first invented. To change that behavior now w...

3年以上前 | 0

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Plot multiple variables with stackedplot with data for the x-axis?
From the doc, about the third input syntax description is stackedplot(___,'XVariable',xvar)

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How to find the frequencies of a time series which contain datetime ?
I think it's absurd to even think about peforming spectral analysis on such a intermittently-sampled signal, but the only thing ...

3年以上前 | 0

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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...

3年以上前 | 1

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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...

3年以上前 | 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 >>...

3年以上前 | 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; >> ...

3年以上前 | 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...

3年以上前 | 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...

3年以上前 | 0

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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...

3年以上前 | 0

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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)...

3年以上前 | 1

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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...

3年以上前 | 0

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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....

3年以上前 | 0

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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...

3年以上前 | 0

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Legend command not working when plotting figure
Try something like figure pbaspect([1 1 1]) loglog(ElectronEnergy(:), [ElectronDifFlue(:) ElectronSolMinDifFlue(:)], 'LineWid...

3年以上前 | 0

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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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 1

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

3年以上前 | 0

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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; ...

3年以上前 | 1

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