[ncl-talk] deleting rows from csv file
Michael Notaro
mnotaro at wisc.edu
Tue Dec 17 11:31:24 MST 2019
Thanks Dennis for the early NCL Christmas gift (:
Michael
Michael Notaro
Associate Director
Nelson Institute Center for Climatic Research
University of Wisconsin-Madison
Phone: (608) 261-1503
Email: mnotaro at wisc.edu
________________________________
From: Dennis Shea <shea at ucar.edu>
Sent: Monday, December 16, 2019 9:44 PM
To: Michael Notaro <mnotaro at wisc.edu>
Cc: ncl-talk at ucar.edu <ncl-talk at ucar.edu>
Subject: Re: [ncl-talk] deleting rows from csv file
hi Michael,
Attached is a library containing few 'simple' functions that eliminate duplicates. The were never made 'public' :-(
It also uses:
https://www.ncl.ucar.edu/Document/Functions/Contributed/get1Dindex.shtml
It does return the first of the 'key' values ... not the last.
%> ncl tst.notaro_elim_dup.ncl
Happy Holidays!
D
On Mon, Dec 16, 2019 at 12:48 PM Michael Notaro via ncl-talk <ncl-talk at ucar.edu<mailto:ncl-talk at ucar.edu>> wrote:
I have a lot of csv files with columns of day, time, and temperature
such as below.
Anytime I have consecutive rows with the same day and time,
as highlighted below, I was to only keep the last row and remove
the other duplicates.
Does anyone have any suggestions in NCL or other command line?
I did see this potential solution using sed, but it doesn't work in
my mac os environment.
https://unix.stackexchange.com/questions/265540/delete-consecutive-lines-in-csv-with-duplicate-values-in-one-field-but-keep-the
DAY TIME TEMP
83., 0.00, -6.32
83., 60.00, -6.58
83., 120.00, -6.80
83., 180.00, -7.22
83., 240.00, -7.10
83., 300.00, -7.47
83., 360.00, -7.69
83., 420.00, -7.50
83., 480.00, -6.75
83., 540.00, -5.49
83., 600.00, -4.54
83., 660.00, -3.30
83., 720.00, -2.42
83., 780.00, -1.67
83., 840.00, -1.64
83., 900.00, -2.08
83., 960.00, -2.99
83.,1020.00, -4.07
83.,1080.00, -5.17
83.,1140.00, -6.52
83.,1200.00, -7.60
83.,1260.00, -8.56
83.,1320.00, -8.93
83.,1380.00, -9.65
84., 0.00, -10.13
84., 60.00, -10.29 * want to remove
84., 60.00, -10.46 * want to keep
84., 120.00, -10.72
84., 180.00, -10.97
Thanks, Michael
Michael Notaro
Associate Director
Nelson Institute Center for Climatic Research
University of Wisconsin-Madison
Phone: (608) 261-1503
Email: mnotaro at wisc.edu<mailto:mnotaro at wisc.edu>
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