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How to split a daily DateList by week? --> Solved

  • To: mathgroup at smc.vnet.net
  • Subject: [mg114866] How to split a daily DateList by week? --> Solved
  • From: "Sohn Hyun-U" <hsohn at student.ethz.ch>
  • Date: Tue, 21 Dec 2010 00:17:17 -0500 (EST)

Hi there,

I just answered my own question...

Given a DateList ts, one can split it by calendar month simply using


SplitBy[ts, #[[1, {1, 2}]] &]


instead of my crummy first try.


To split by calendar week, I found a function called ISOWeek in this group (https://groups.google.com/group/comp.soft-sys.math.mathematica/browse_thread/thread/3dbc03f1f113b370/18e87e147589ebfe?hl=bn&lnk=gst&q=week#18e87e147589ebfe) which can then be used analogously like


SplitBy[ts, #[[1, 1]] && ISOWeek[#[[1]]] &]


Kind regards,

Hyun-U Sohn


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