how to merge multiple timetable

조회 수: 17 (최근 30일)
Sehoon Chang
Sehoon Chang 2020년 8월 21일
댓글: Cris LaPierre 2020년 8월 23일
dear advisers,
i have multiple timetables with different timestamps (yyyy-mm-dd hh:mm), but within a same time period.
I wish to merge multiple timetables into a single timetable, and the measurement recorded for each corresponding timestamps shall be organized in ascending order (e.g. 2020-08-01 0:00 , 2008-08-01 1:00, ....).
Thank you for your advice.

채택된 답변

Cris LaPierre
Cris LaPierre 2020년 8월 23일
You might be able to use synchronize. If you have more than 2 tables, you will need to use it multiple times.
  댓글 수: 2
J. Alex Lee
J. Alex Lee 2020년 8월 23일
Just a quick note this would probably require conversion of your tables into timetables first with table2timetable().
Also based on quick read of the docs, doesn't appear to have an option to behave more like a join, i.e., do not fill missing? Anyway I suppose it ultimately depends on exactly what the end objective is.
Cris LaPierre
Cris LaPierre 2020년 8월 23일
The OP states they are using timetables.

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추가 답변 (1개)

J. Alex Lee
J. Alex Lee 2020년 8월 21일
편집: J. Alex Lee 2020년 8월 21일
If the tables have the same columns, you should be able to simply vertically concatenate them and sort
t0 = sortrows(vertcat(t1,t2,t3))
  댓글 수: 4
Sehoon Chang
Sehoon Chang 2020년 8월 22일
yes, i meant the matlab 'table'.
What i meant by the measurement invertal (diff(timestamp)) is...
table_1 lists radiation value every 15 minutes and table_2 lists other measurements every hour.
Thanks alot for your help :)
J. Alex Lee
J. Alex Lee 2020년 8월 22일
look into "innerjoin" and "outerjoin"

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