Interpolate strings from an x y interval to a corresponding x y interval.
If you had timetables, ths would be a one-liner using synchronize. from and blocksFrom look suspiciously like time vectors. Time...

5 months ago | 1

i have a list of data and i have to select first 5th column of each row ..then simultaneously 6th column and 7th column
You almost certainly do not need cell arrays. You certainly don't need numeric matrices because most of your data is not numeric...

5 months ago | 0

I can't manage to stack plot 2 columns with the right graph size
Inigo, I don't know what you data look like or how you have them stored, but I strongly recommend that you look at using a timet...

5 months ago | 0

Locate indices of datetime from one table in another?
1) It looks like you must have use "day" as an input to groupsummary, which returns a categorical as the group values: >> tt = ...

5 months ago | 0

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Built in look-up style interpolation of timetables for non-numeric data?
You absolutely can use interp1 on a numeric vector over a datetime grid with unsorted, repeated query points: >> interp1(t,y,tP...

5 months ago | 0

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Adding a column of the same character name for all the rows in a table
It's even simpler than that: >> r1 = array2table(rand(5,1),'VariableNames',"Random1"); >> r1.Time(:) = "hours" r1 = 5×2 tabl...

5 months ago | 0

Table calculations, annual return
Almost certainly the best way to do this is to use a timetable, and a grouped varfun (or grouptransform). >> AAPL = rand(36,1);...

5 months ago | 0

Combine rows and average contents in table
In addition to dpb's solution that uses rowfun, here's a similar sol'n that uses varfun. The difference is that varfun works on ...

5 months ago | 0

How to join data elements with the same date in a table
This is a one-liner with unstack: >> date = datetime(2022,1,[1 1 1 2 2 2 3 3 3])'; >> station = categorical(["A" "B" "C" "A" "...

5 months ago | 0

Input timetables must contain unique row times when synchronizing using 'linear'
The problem is that one of these files has duplicate rows: >> t1 = readtable('ctm.xlsx'); >> t1.Time = days(t1.Time); t1.Time....

5 months ago | 0

How to convert one column of a table into numeric data type corresponding to the other column of the same table?
This is perhaps slightly more clear: >> genre = {'ab','a','a','o','abo'}'; >> runtime = [11,12,13,14,45]'; >> T = table(genre...

5 months ago | 1

Elegant way to view and compare data based on feature/parameter selection?
Martin, you may have moved on already, but maybe this is still helpful. First, I think using categorical will make life easier....

5 months ago | 0

How do I find a daily minimum value using retime when I have categorial data in the table?
SS's answer seems to have worked, and I'm late to the party, but I always like to provide an alternative to using datenum, and r...

5 months ago | 0

How to breakdown a timetable into intervals to performance calculations
Oliver, you may have moved on already, but maybe this will still help. Normally retime would be the thing to use for something ...

5 months ago | 0

Decimail Years date to JulianDate
Maybe I'm missing something. The file contains year and fractional year. Isn't this just >> T1 = readtable('https://www.mathwor...

5 months ago | 0

Make arrays into a table
TOK, you have 6 series, each with length 10. The normal way to orient that would be 10 rows, 6 columns. Nonetheless, >> a1 = ra...

5 months ago | 0

Define an event if there are > 5 signals detected in a minute
I'm going to assume that "I would like to define an 'event' if 5 or more signals are detected within a minute." and "check if th...

5 months ago | 0

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running for loop gives error " Row index exceeds table dimentions "
Not sure what purpose the first vector serves, but if it always defines non-overlapping groups, then there's no need for a loop:...

5 months ago | 0

Sort table based on number of occurrences
This has been unanswered for some time. Maybe this is still helpful. The main problem here is cell arrays of (repeated) text an...

5 months ago | 0

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Timeit on pause(2) returns weird ouput
The issue is pause, not timeit: "STATE = pause(...) returns the state of pause previous to processing the input arguments." >>...

5 months ago | 0

postgresql database with time series results with NaT
You need to provide a format in whatever you are using to import: >> datetime("2022-02-28 16:16:34+00","Format","uuuu-MM-dd HH:...

5 months ago | 0

Write txt to table with collumn name
Sarah, you question is a little vague. It sounds like you have a series of folders, let's say they are named folder1, folder2, ....

5 months ago | 0

Count unique values in a double
In addition to what Walter said, if you want the unique values of one variable in a table, likely this is what you should use: ...

5 months ago | 0

Switching TimeZone property in datetime function doesn't change output.
Marius, here's what's happening: The first few inputs of your code tell datetime that the instant of time you are talking about...

6 months ago | 1

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How to sum structures
Assuming that you are starting with something like this >> A.X = table(rand(3,1),rand(3,1),'VariableNames',{'X1' 'X2'}); >> A....

8 months ago | 0

How to add two sets of imported data?
Ashley, there's a long example in the doc that talks about "how to perform calculations by using the numeric and categorical da...

8 months ago | 1

Finding the difference in timeseries values
David, you are correct that diff(TableName.Variables) removes the times and the variable names, in fact, it returns a numeric ma...

8 months ago | 0

Can I use the movmean function for a time series?
CivilEngBath, I recommend that you take a look at using timetables, not timeseries. smoothdata on timetables does what you want....

8 months ago | 0