I have an m.n time series with m daily sample of 15 years time domain. I want to split it into 15 one year data matrix using the time column which has a sample i.e 6/04/2018. Thanks

I have an m.n time series with m daily sample of 15 years time domain. I want to split it into 15 one year data matrix using the time column which has a sample i.e 6/04/2018. Thanks

[jonas]

Upload example data and explain why you'd want to do such a thing. Seems unnecessary at first glance.

[dpb]

Agree that splitting physically seems unlikely to be required/desirable from efficiency standpoint...see

doc retime
doc findgroups
doc splitapply

to do things with the data by year (or any other time division).