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How to display an error if a file doesn't exist
ftpobj = ftp('cddis.nasa.gov'); dirStr = sprintf('/gnss/data/daily/2020/brdc/'; cd(ftpobj, dirStr); for i=1:days2get ...

environ 6 ans il y a | 1

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Heatmap with specified color ranges?
Whether this does precisely what you're looking for or not, I dunno...but might be a starting point. Nothing like that built in...

environ 6 ans il y a | 0

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Can I keep the text of my delimiter or LineEnding when using readcell, readtable, etc.?
OK, try the following for starters...probably cleaner way to do the splits given the indices and direct index manipulation but t...

environ 6 ans il y a | 1

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What frustrates you about MATLAB? #2
Switching named parameter names for newer functions to not be compatible with old -- from the time of textscan on which goes way...

environ 6 ans il y a | 3

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How to write a long equation with a long vector(s) shortly?
Vashist has right idea -- wil have to have a real name for the function/function file as can't be a multi-line anonymous functio...

environ 6 ans il y a | 0

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Heatmap of One Variable
xy=num2str([1:4].','Test%d'); data=[2 1 1 0;nan 1 0 0;nan nan 2 1;nan nan nan 1]; hHM=heatmap(xy,xy,data); looks reasonably c...

environ 6 ans il y a | 0

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turning functions into floating-point numbers
Evaluate the function over the range and use findpeaks

environ 6 ans il y a | 0

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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" ...

environ 6 ans il y a | 0

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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...

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

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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...

environ 6 ans il y a | 2

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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...

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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...

environ 6 ans il y a | 1

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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...

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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.

environ 6 ans il y a | 0

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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...

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

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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...

environ 6 ans il y a | 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 ...

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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...

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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...

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

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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...

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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. ...

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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...

environ 6 ans il y a | 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...

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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...

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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...

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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...

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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...

environ 6 ans il y a | 1

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