What is the best way to downsample a tall timetable? Neither "decimate" nor "retime" seems to work.
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What is the best way to downsample a tall timetable? Using:
decimate(TT, n);
causes the error "Conversion to logical from tall is not possible." Using:
retime(TT, 'regular', 'mean', 'SamplingRate', n);
causes the error "Invalid parameter name: SamplingRate".
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dpb
2018-8-9
编辑:dpb
2018-8-9
The newTimeStep or newTimes input parameters could be used for the purpose; newTimeStep is a fixed time step so that
newTimeStep=TimeStep*N2/N1; where N1,N2 are the existing, old series lengths or the ratio the decimation factor.
Alternatively, newTimes is a vector of times.
To use decimate you would have to retrieve the data from the time series to a double; the doc doesn't indicate it supports tall arrays, though.
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