Hi all,

I have never worked with this kind of data before, so Please help me out
with it.
I have the following data set, in a csv file, looks like the following:

Jan 27, 2010  16:01:24,000 125 - - -
Jan 27, 2010  16:06:24,000 125 - - -
Jan 27, 2010  16:11:24,000 176 - - -
Jan 27, 2010  16:16:25,000 159 - - -
Jan 27, 2010  16:21:25,000 142 - - -
Jan 27, 2010  16:26:24,000 142 - - -
Jan 27, 2010  16:31:24,000 125 - - -
Jan 27, 2010  16:36:24,000 125 - - -
Jan 27, 2010  16:41:24,000 125 - - -
Jan 27, 2010  16:46:24,000 125 - - -
Jan 27, 2010  16:51:24,000 125 - - -
Jan 27, 2010  16:56:24,000 125 - - -
Jan 27, 2010  17:01:24,000 157 - - -
Jan 27, 2010  17:06:24,000 172 - - -
Jan 27, 2010  17:11:25,000 142 - - -
Jan 27, 2010  17:16:24,000 125 - - -
Jan 27, 2010  17:21:24,000 125 - - -
Jan 27, 2010  17:26:24,000 125 - - -
Jan 27, 2010  17:31:24,000 125 - - -
Jan 27, 2010  17:36:24,000 125 - - -
Jan 27, 2010  17:41:24,000 125 - - -
Jan 27, 2010  17:46:24,000 125 - - -
Jan 27, 2010  17:51:24,000 125 - - -
......

The first few columns are month, day, year, time with OS3 accuracy. And the
last number is the measurement I need to extract.
I wonder if there is a easy way to just take out the measurements only from
a specific day and hour, i.e. if I want measurements from Jan 27 2010
16:--:--
then I get 125,125,176,159,142,142,125,125,125,125,125,125.
Many thanks!!

-- 
Xin Zhang
Ph.D Candidate
Department of Statistics
University of California, Riverside

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