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use unstack to reshape table with dummy variable (edited: alternative crosstab method)
I'm having trouble understanding the desireed output, but others have created what is essentially a crosstabulation of counts, s...

2 years ago | 1

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Naming Cell Array as Rownames
It's hard to tell what you are asking for. It mighht be this: T = array2table(rand(5,2)) T.Properties.RowNames = ["A";"B";"C";...

2 years ago | 1

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How do you plot two graphs with multiple curves next to a table?
Mathew, I think you are making your life more difficult than it needs to be with all those strings. I get that you are trying to...

2 years ago | 0

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Indexing different time stamps for same day?
Arun, as Jack implies, timerange (the class) currently can only represent one interval. You can do one of two things: 1) As Jac...

2 years ago | 0

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Processing Timeseries of Cylinder Pressure Data
Your file has four time series in it. I would recommend reading those four ranges using readtimetable to get four timetables. Th...

2 years ago | 1

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Inserting missing rows to table for interpolation
I'm not sure I follow your question, but it's almost certain that using timetables (maybe with durations as the row times) and s...

2 years ago | 0

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Multiply and integrate two plots for single output value
Any time the number 365 appears in code, thatr's probably a bug. You might try to use datetimes and durations in your code, inc...

2 years ago | 0

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Extract SST data in a polygon from average monthly netcdf file
Simbarashe, readtable and readmatrix read your file just fine, so I don't think that's the issue: >> sst2 = readmatrix("sst2.tx...

2 years ago | 0

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Model calibration for different dates
I would think that the best way to do this would be to put your data into a timetable, and use the rowfun function with the date...

2 years ago | 0

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How to get a sum of coloumnn linked to datetime?
Create a timetable from your data, and use retime to aggregate it to monthly. It's one line of code.

3 years ago | 1

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Answered
How do I pull data between specific dates like Vlookup formula in Excel?
As Walter says, uses a timetable. >> tt = readtimetable("sampledata_uyyk.csv") [some warnings removed] >> tt = convertvars(tt...

3 years ago | 0

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date and time string identification
"I have the following information obtained from a text-file date_hne: {'2014' '04' '01' '23' '46' '44.998300'}" I don't s...

3 years ago | 0

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how to convert hours and minutes from decimals to datetime objects
Converting to string is totally unnecessary. Assuming the first variable in the table is already a datetime: >> t = datetime(20...

3 years ago | 1

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Effect of os clock change on timers
cr, this was a bug in earlier releases, and got fixed in R2021a.

3 years ago | 2

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Live Editor: Brace indexing changes Table to Struct
You can certainly post something like the table you have. In any case, if A is a table, then A.all is a variable in that table....

3 years ago | 0

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How can I delete some specific rows from a matrix?
Surely you don't just have a list of dates. Presumably you have data at each date. Use a timetable to store all that. At that p...

3 years ago | 1

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Select column in timetable based on value in table
Two steps: 1) Find the nearest sensor. This easy using interpolation: >> load("SL.mat") >> load("SensorLoc.mat") >> SensorLo...

3 years ago | 0

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Answered
Is it possible to use vertcat with dot notation?
Depending on what you are doing, you may find it convenient to turn that struct into a table (which wil automatically vertcat th...

3 years ago | 1

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A very fast way to convert numbers into datetime ?
Syntactically, >> time = datetime("202210270954498", 'inputFormat','uuuuMMddHHmmssSSS', 'Format','yyyy-MM-dd HH:mm:ss.SSS') t...

3 years ago | 1

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How to find specific elements in cell array not followed by another specific element?
If you have time and other data, think timetables (also Walter is right about categorical): action = categorical([1;3;2;4;1;3;2...

3 years ago | 1

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Getting Data from Cell: Dynamic Structure needed?
Simon, what you should do depends very heavily on what you want to do with these data, i.e. what "take the value of the needed d...

3 years ago | 1

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trying to find highest values in a time segment
It's not clear to me that Image Analyst's solution answers your question, mostly because your question is not very clear. If the...

3 years ago | 0

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How to fix non-alignment issue when plotting multiple axes
Dinuka, if that's the plot you are looking for, I guess Voss' suggestion gets you there. But I might also add: y1=0.45 + .3*ran...

3 years ago | 1

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Storing Variables in a loop to out put in a table
Make a timetable: i = (1:9)'; a = i-1; b = i.^2; c = i + rand(9,1); d = rand(length(i),1); e = rand(length(i),1); f = ran...

3 years ago | 0

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Issue Plotting 2 different Values
Cedric, I can't really follow your code or your explanation, but I would think you want something like this: ice = readtimetabl...

3 years ago | 0

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Coverting Timetable to Column Vector
Sam, it looks like you are ending up with a 7201x6 timetable whose variables are cell arrays, and each cell contains a 500x1 dou...

3 years ago | 1

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Answered
A very fast way to sort datetime (in "ascend" mode)?
It seems like the obvious response to Any way faster than this one ? [~, idx2] = sort(datenum(a), 1, 'ascend'); is to...

3 years ago | 1

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Average of variables in timetable belonging to the same day over several years
Ziad, it seems that "dayofyear" is using "serial day number of year", and as you found, is lumping 29-Feb's with the non-leap 1-...

3 years ago | 0

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Answered
Compile data from excel sheets into a dataset with multiple tags
Charlie, I'm confused. I haven't followed all of what you code does, but it seems that you are lining up tables of different he...

3 years ago | 0

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Only required the mean value out rather then every single value in a data
"7" sounds rather suspiciously like "weeks". If this were a timetable, it would be a one-liner with groupsummary. Moral: don't t...

3 years ago | 1