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efficient ways to read and write complex valued data
Well, dunno how much faster/slower it might be; didn't try to time it, but trying something different-- Iffen by "interleaved" ...

8 jours ago | 0

Answered
Change axes x in stackedplot
See yesterday's news...<how-can-i-change-the-pspectrum-time-units> and, while it doesn't look related from the title, it's got t...

8 jours ago | 0

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Answered
find first and last index below threshold in a vector
Use find

8 jours ago | 1

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Answered
What frustrates you about MATLAB? #2
Stuff like <heatmap-axis-labels-printing-vertically> and <how-can-i-change-the-pspectrum-time-units>. Introducing all these mos...

8 jours ago | 1

Answered
How to change strange cell array within a table to double or categorical array
Well, it'd be easier to be sure if could actually know for sure what the data storage is, but guessing on account of the " surro...

9 jours ago | 0

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Answered
Locating characters in a string array
As the other respondent says, you don't need a corollary array unless the lookup isn't 1:1 with position (which your description...

9 jours ago | 1

Answered
Extrapolate using half the slope than in original data
You've got to match the two at the breakpoint...w/o data so didn't use but the endpoints to roughly match your figure... x=[1 2...

10 jours ago | 1

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Answered
How to change strange cell array within a table to double or categorical array
Use the optional valueset, and perhaps catnames inputs to categorical to define as desired.

10 jours ago | 0

Answered
What exactly does tStat of fitlm function refer to?
Well, it's the basic linear model hypothesis test statistic that each coefficient in the model is significantly different from t...

11 jours ago | 0

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Answered
How can I change the pspectrum time units?
t = seconds(0:length(x)-1)/fs; will fix it.

11 jours ago | 0

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Answered
Heatmap Axis Labels Printing Vertically?
Oh, TMW has done it again -- they've buried stuff inside opaque (to the user) objects that should be visible. I wish they would...

11 jours ago | 0

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Issue with finding intersection between randomly generated matrices
The results for intersect are correct .. >> (A(16,:)-A_new(3,:)) ans = 1.0e-13 * 0 0 0.1421 >> The ...

12 jours ago | 0

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Answered
How to check each number in a user given vector
if nargin<3 GNSSflag = [0 0 0 0]; GNSS = {'GPS','GALILEO','GLONASS','BEIDOU'}; [indx,tf] = listdlg('ListString',G...

12 jours ago | 0

Answered
Remove the legends for some lines in a plot
If you only want the scatter points in legend, set the 'Annotation' property to not show the lines... plot(fittedX, fittedY...

12 jours ago | 0

Answered
Matlab command for plotting complex number?
See https://www.mathworks.com/help/matlab/creating_plots/plot-imaginary-and-complex-data.html

12 jours ago | 0

Answered
Merge datetime with another cell for export
Sure... >> c={datetime(now,'ConvertFrom','datenum'),pi} c = 1×2 cell array {[25-Jun-2020 08:22:52]} {[3.14]} >> wr...

12 jours ago | 0

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Answered
How to combine 2 Fits done with cftool
%% Fit: 'untitled fit 1'. [xData1, tmp] = prepareCurveData( Fqr, Prem ); yData1 = tmp+pi/2; % Set up fittype and options. ...

13 jours ago | 0

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Answered
How to compare the colums ( 2nd and 3rd) of 2 .csv files based on a condition
Has to be a more direct way, but following works if I understand the request -- tF1=readtable('file1.csv'); tF1.condition=categ...

13 jours ago | 0

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How to add the year to the stairs plot
Use a datetime for your time variable and you'll get time plots automagically along the x axis and can set xlim() values with da...

15 jours ago | 0

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I want to plot Linear Equations but dont know how to do it on matlab
Since you're still new, let me make some suggestions on coding -- First, use newer features -- if you'll read the doc for xlsre...

15 jours ago | 0

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Speed up FFT calculation
"The signal matrix is 36350x2048, 36350 being the number of signals and 2048 being the zero padded length of each signal. " Use...

16 jours ago | 0

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Answered
Error when trying to plot multiple box plot's in the same graph.
Your orientation for kcnt1Table is wrong -- as is you'll have 13 boxes, not six; boxplot treats each column as variable. You do...

16 jours ago | 0

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Answered
Calculate average for each hour in day
IIUC, retime is not the tool for this; it bins data into desired time segments such as hourly but averages within those bins. T...

18 jours ago | 0

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Answered
How to simplify the for loops and if statement in this code
Straightahead w/o trying to save some recomputations that could be done by complements-- k=[sum(A==B & A==0,'all') sum(A==B & A...

18 jours ago | 0

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Answered
Creating a mesh plot with data in a timetable
OK, the above conversation branched another route -- time=datenum(Time); % convert to datenum since they're doubles...

19 jours ago | 0

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Answered
Using bar3 and color coordinating the height depending on the value
They're all the faces color vertices data -- it's a convolved mess to fiddle with manually, fer shure, good buddy! :( Your cod...

19 jours ago | 1

Answered
Creating a mesh plot with data in a timetable
That form for meshz doesn't use any x-,y-coordinates at all -- it just plots against the ordinal position numbers of the Z array...

19 jours ago | 0

Answered
extract year from date and add to a table
Nothing, really. It's an undocumented edge case of incorrect input to the function datenum that for some reason instead of thro...

20 jours ago | 0

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Answered
How i accumulate multiple variables?
out=out(:); % just reshape to column vector Use k=2*(i-1)+j; % for index vector where i,j ==> a(:,1), a(:,2), resp...

22 jours ago | 0

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Answered
percentage of up days every 12 days
However, the neatest solution is probably nD=12; % number days for moving percentage dCP...

22 jours ago | 0

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