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]   [-5]   [-6]  [-7]  [-A]  [-a  dim[,...]]   [--bfr
10       sz_byt][-C][-c]   [--cmp    cmp_sng]    [--cnk_byt    sz_byt][--cnk_csh
11       sz_byt][--cnk_dmn   nm,sz_lmn]   [--cnk_map   map]  [--cnk_min  sz_byt]
12       [--cnk_plc plc] [--cnk_scl sz_lmn][-D dbg_lvl] [-d dim,[ min][,[ max]]]
13       [-F]  [--fl_fmt=fmt]  [-G  gpe_dsc]  [-g  grp[,...]]   [--glb att_name=
14       att_val]] [-h] [--hdf] [--hdr_pad sz_byt][--hpss_try] [-L dfl_lvl]  [-l
15       path]   [-M  pck_map]  [--mrd]  [--msa]  [--no_cll_msr]  [--no_frm_trm]
16       [--no_tmp_fl] [-O] [-o  output-file]  [-P  pck_plc]  [-p  path]  [--ppc
17       var1[,  var2[,...]]=  prc]]  [-R]  [-r]  [--ram_all]  [-t thr_nbr] [-U]
18       [--uio] [--unn] [-v var[,...]]  [-X box] [-x] input-file [  output-file
19       ]
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DESCRIPTION

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

49       NCO manual pages written by Charlie Zender and originally formatted  by
50       Brian Mays.
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REPORTING BUGS

54       Report bugs to <http://sf.net/bugs/?group_id=3331>.
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58       Copyright © 1995-present Charlie Zender
59       This is free software; see the source for copying conditions.  There is
60       NO warranty; not even for MERCHANTABILITY or FITNESS FOR  A  PARTICULAR
61       PURPOSE.
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SEE ALSO

65       The full documentation for NCO is maintained as a Texinfo manual called
66       the NCO Users Guide.  Because NCO is mathematical in nature, the  docu‐
67       mentation  includes  TeX-intensive  portions not viewable on character-
68       based displays.  Hence the only complete and authoritative versions  of
69       the NCO Users Guide are the PDF (recommended), DVI, and Postscript ver‐
70       sions at <http://nco.sf.net/nco.pdf>, <http://nco.sf.net/nco.dvi>,  and
71       <http://nco.sf.net/nco.ps>,  respectively.   HTML  and XML versions are
72       available         at          <http://nco.sf.net/nco.html>          and
73       <http://nco.sf.net/nco.xml>, respectively.
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75       If  the  info and NCO programs are properly installed at your site, the
76       command
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78              info nco
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80       should give you access to the complete manual, except for  the  TeX-in‐
81       tensive portions.
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83       ncap(1), ncap2(1), ncatted(1), ncbo(1), ncclimo(1), nces(1), ncecat(1),
84       ncflint(1), ncks(1), nco(1), ncpdq(1), ncra(1), ncrcat(1),  ncremap(1),
85       ncrename(1), ncwa(1)
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HOMEPAGE

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