Answered
Delete rows in cell aray where there is anything in one collum.
A cell array is the wrong way to store these data. You want a table, or probably a timetable. The fact that you say, "the name o...

ungefär 3 år ago | 0

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Answered
Prevent overwriting within a for loop in 3D-motion tracking
You may just want T = table(); for ... ... T = [T; readtable (thisFile)];

ungefär 3 år ago | 0

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Answered
How to convert the number of seconds from an epoch into UTC using the datetime function.
Matthew, this is easier than you think. In MATLAB, 'TimeZone','UTC' is sort of a ficticious timeline that pretends that leaps se...

ungefär 3 år ago | 2

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Answered
How to plot only the matches of two different datetime?
If all you have are two datetime vectors, you can use intersect to find the common values. But I'm guessing you have other data ...

ungefär 3 år ago | 0

Answered
How to filter the data.
Not sure how you are getting those data into MATLAB, but I suggest that you figure out why you have a cell array. You want a tab...

ungefär 3 år ago | 0

Answered
extracting columns from multiple cell arrays consist of table data
If you've read two "similar" tables into a 2x1 cell array, best ting to do is to vertvat them outside the loop: >> C = {array2t...

ungefär 3 år ago | 1

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Answered
split cell in 2 columns
Use cellfun, two possibilities: function [val1,val2] = myfun1(x) val1 = x(1); if isscalar(x) val2 = 0; else val2 =...

ungefär 3 år ago | 0

Answered
How do I find the corresponding date/time value of the maximum of my data in a table?
This is a pretty common question, so I'm gonna show a bunch of stuff in hopes others can find it useful. Let's start with a sim...

ungefär 3 år ago | 0

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Answered
how to sort a cell array inside a struct?
I think you would be better off with a table than a struct. Name_Code = table(IDs, C,'VariableNames',["Name" "Codes"]) Name_Co...

ungefär 3 år ago | 0

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Answered
Error with splitting table into separate columns.
This is an application of unstack and then stack. The code looks a lot more complicated than it might if I hard-coded in sizes, ...

ungefär 3 år ago | 0

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Answered
Coordinate interpolation with time
This line of code pf = polyfit(Lat(:,1) Lat(:,2)], [(Long(:,1) Long(:,2)] %Coordinates is not valid syntax for several reasons...

ungefär 3 år ago | 0

Answered
Smartly search between tables
This would be trivial if varfun accepted more than one table input, but it doesn't do that. But you can make one table that look...

ungefär 3 år ago | 0

Answered
Calculete monthly anomalies time series temperature
You are not doing yourself any favors by using raw numeric vectors with no timestamps. This is almost trivial using datetime and...

ungefär 3 år ago | 1

Answered
repeating step signal in real time with a hold value of 5 seconds
Like this? >> interp1([1 5 6 10 11 15],[1 1 2 2 3 3],1:15,"prev") ans = 1 1 1 1 1 2 2 2 2 ...

ungefär 3 år ago | 0

Answered
how to expand the date matrix?
roudan, this question doesn't seem to make any sense. For one thing, it doesn't seem useful that you have a column whose header ...

ungefär 3 år ago | 1

Answered
Program architecture for handling large .csv files
With no code at all to go on, it's pretty hard to give specific advice. Hex issues aside, the first advice I would give would b...

ungefär 3 år ago | 1

Answered
Transforming data table from wide to long format
stack to the rescue, twice, because you are stacking two pairs of variables all into one variable: >> tw = readtable("wide_form...

ungefär 3 år ago | 1

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Answered
Trying to use retime to sum daily values, but I don't want days that only have NaN values to become 0
In the doc for retime (admittedly, not really in flashing bold letters): "All the listed methods omit NaNs, NaTs, and other miss...

ungefär 3 år ago | 0

Answered
Split a target date interval into seasons and find the percentile of days for each season
Another possibility: >> yr = 2020; >> edges = datetime(yr,[1 3 6 9 12,12],[1 1 1 1 1 32]) edges = 1×6 datetime array ...

ungefär 3 år ago | 1

Answered
hours(diff(datetime([t1;t2]))) function
In addition to what others have said, you probably don't need the "hours" in hours(diff(datetime(t1;t2]))) All that does is tu...

ungefär 3 år ago | 0

Answered
Unable to perform assignment because the left and right sides have a different number of elements.
No idea what filename = 'Format_competition.xlsx'; has to do with this, so I suspect you have not told us the whole story. In...

ungefär 3 år ago | 0

Answered
Plot time series analysis from multiple netcdf files
Mir, I'm not very familiar with MATLAB's netCDF features, but there are ways to read the files and you should read the doc about...

ungefär 3 år ago | 0

Answered
Convert Number to Time / Duration Format of Data Column
This is much simpler than you think. You can't currently parse things like "000002" directly into duration, but you can get ther...

ungefär 3 år ago | 0

Answered
Perform a calculation using data from multiple tables
Mark, have you tried using join? t = readtable("flight data.xlsx","TextType","string") t = join(t,T_Distance,"LeftKey","Destin...

ungefär 3 år ago | 0

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Answered
How to simply the code
"I'm working with cell arrays": Riccardo, you don't want to be doing that, especially not with 100000 rows. Or using a loop for ...

ungefär 3 år ago | 0

Answered
How to stackplot a table?
That seems overly complicated. stack to the rescue? >> t = table(datetime(2021,7,26,0:2:22,0,0)',datetime(2021,7,26,1:2:23,0,...

ungefär 3 år ago | 0

Answered
How to manage NaN values and calculate mean under conditions
Another possibility that uses and preserves a timetable: >> tt = readtimetable("Daily data.xlsx"); >> head(tt) ans = 8×1 t...

ungefär 3 år ago | 0

Answered
Insert two plots and a precreated table in the same figure
Camilo, in general you don't need all those table2array calls. Just do this: plot(Tablecalc.NameOfYour6thVar,Tablecalc.NameOfYo...

ungefär 3 år ago | 1

Answered
Subscripting into a table using three or more subscripts (as in t(i,j,k)) is not supported. Always specify a row subscript and a variable subscript, as in t(rows,vars).
Lihi, hard to say for sure, but you may want to make a table that contains those four tables. For example: >> baseline = table(...

ungefär 3 år ago | 0

Answered
find elapse time with date rollover
Get away from using datenum. Can't say this strongly enough. >> tstr=["11:58:00"; "11:59:00"; "00:00:02"; "00:02:04"]; >> tod ...

ungefär 3 år ago | 1

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