1NCPDQ(1)                    General Commands Manual                   NCPDQ(1)
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NAME

6       ncpdq - netCDF Permute Dimensions Quickly, Pack Data Quietly...
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SYNTAX

9       ncpdq  [-3] [-4] [-6] [-A] [-a dim[,...]]  [-C] [-c] [-D dbg] [-d dim,[
10       min][,[ max]]] [-F] [-h] [-L dfl_lvl] [-l path] [-M pck_map]  [-O]  [-o
11       output-file]  [-P  pck_plc]  [-p  path]  [-R]  [-r]  [-t  thr_nbr]  [-v
12       var[,...]]  [-X box] [-x] input-file [ output-file ]
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DESCRIPTION

15       ncpdq packs or re-shapes variables in input-file  and  stores  them  in
16       output-file.   Which  variables  to  pack/unpack  are determined by the
17       packing policy encoded in the pck_plc argument to the -P switch.  Valid
18       pck_plc  options  are  all_new, all_xst, xst_new, and upk.  The numeric
19       type of variable to pack or re-pack a variable to is determined by  the
20       packing  map  encoded  in the pck_map argument to the -M switch.  Valid
21       pck_map options are flt_byt, flt_sht, hgh_byt, hgh_sht, and nxt_lsr.
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23       ncpdq re-shapes variables in input-file by re-ordering and/or reversing
24       dimensions  specified  in  the dimension list.  The dimension list is a
25       comma separated list of dimension names, optionally prefixed  by  nega‐
26       tive signs, that follow the -a switch.  To re-order variables by a sub‐
27       set of their dimensions, specify these dimensions in a  comma-separated
28       list  following  -a,  e.g., -a lon,lat.  To reverse a dimension, prefix
29       its name with a negative sign in the dimension  list,  e.g.,  -a  -lat.
30       Re-ordering  and  reversal  may  be  performed simultaneously, e.g., -a
31       lon,-lat,time,-lev.
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33       Users may specify any permutation of dimensions, including permutations
34       which  change  the  record dimension identity.  The record dimension is
35       re-ordered like any other dimension.  The record  dimension  is  always
36       the  most slowly varying dimension in a record variable.  The specified
37       re-ordering will fail if it requires  creating  more  than  one  record
38       dimension amongst all the output variables.
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AUTHOR

42       NCO manual pages written by Charlie Zender and Brian Mays.
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REPORTING BUGS

46       Report bugs to <http://sf.net/bugs/?group_id=3331>.
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50       Copyright © 1995-2010 Charlie Zender
51       This is free software; see the source for copying conditions.  There is
52       NO warranty; not even for MERCHANTABILITY or FITNESS FOR  A  PARTICULAR
53       PURPOSE.
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SEE ALSO

57       The full documentation for NCO is maintained as a Texinfo manual called
58       the NCO User's Guide.  Because NCO is mathematical in nature, the docu‐
59       mentation  includes  TeX-intensive  portions not viewable on character-
60       based displays.  Hence the only complete and authoritative versions  of
61       the  NCO  User's  Guide  are the PDF (recommended), DVI, and Postscript
62       versions at  <http://nco.sf.net/nco.pdf>,  <http://nco.sf.net/nco.dvi>,
63       and  <http://nco.sf.net/nco.ps>,  respectively.   HTML and XML versions
64       are      available      at       <http://nco.sf.net/nco.html>       and
65       <http://nco.sf.net/nco.xml>, respectively.
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67       If  the  info and NCO programs are properly installed at your site, the
68       command
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70              info nco
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72       should give you access to the complete  manual,  except  for  the  TeX-
73       intensive portions.
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HOMEPAGE

77       The NCO homepage at <http://nco.sf.net> contains more information.
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