man/man1/rcollate.1

.\" RCSid "$Id: rcollate.1,v 1.1 2013/09/05 17:53:22 greg Exp $"
.TH RCOLLATE 1 7/8/97 RADIANCE
.SH NAME
rcollate - resize or transpose matrix data
.SH SYNOPSIS
.B rcollate
[
.B \-h
][
.B \-f[afdb][N]]
][
.B \-t
][
.B "\-ic in_col"
][
.B "\-ir in_row"
][
.B "\-oc out_col"
][
.B "\-or out_row"
]
[
.B input.dat
]
.SH DESCRIPTION
.I Rcollate
reads in a single matrix file (table) and reshapes it to have
the number of columns specified by the
.I \-oc
option.
By default, the file is assumed to include an information header, which
is copied to the standard output along with the command name, but the
.I \-h
option may be used to turn this behavior off.
.PP
The input format is assumed to be ASCII, with three white-space separated words
(typically numbers) in each record.
A different input format may be specified with the
.I \-f
option.
The suboptions are
.I \-fa,
.I \-ff,
.I \-fd,
and
.I \-fb
for ASCII, float, double, and binary, respectively.
An optional count may be attached to specify the number of data elements per
record, which defaults to 1.
Thus, the default setting is
.I \-fa3.
Since
.I rcollate
does not interpret the fields, all binary options of the same
length have the same result.
On most architectures,
.I \-ff6,
.I \-fd3,
and
.I \-fb24
would all be equivalent.
Note that the lack of row separators in binary files means that
.I rcollate
does not actually do anything for binary files unless the transpose
option is given, also.
.PP
The transpose option,
.I \-t
swaps rows and columns on the input.
For binary files, the user must specify at least one input or output
dimension to define the matrix size.
For ASCII files,
.I rcollate
will automatically determine the number of columns based on the
position of the first EOL (end-of-line) character, and the number
of rows based on the total count of records in the file.
The user may override these determinations, allowing the matrix to
be resized as well as transposed.
If input and output dimensions are given, the number of input rows
must equal the number of output columns,
and the number of input columns must equal the number of output rows.
For large transpose operations on Unix systems, it is most efficient
to specify the input file on the command line, rather than reading
from the standard input, since
.I rcollate
can map the file directly into memory.
.SH EXAMPLE
To change put 8760 color triplets per row in a matrix with no header:
.IP "" .2i
rcollate -h \-oc 8760 input.dat > col8760.dat
.PP
To transpose a binary file with 145 float triplets per input row:
.IP "" .2i
rcollate -ff3 -ic 145 -t orig.flt > transpose.flt
.SH AUTHOR
Greg Ward
.SH NOTES
The
.I rcollate
command is rather inflexible when it comes to output field and record
separators for ASCII data.
It accepts any amount of white space between fields
on input, but only produces spaces as field separators
between words and tabs as record separators on output.
Output row separtors will always be an EOL, which may differ between systems.
.PP
If no options are given on the command line, or a binary file is specified
without a transpose,
.I rcollate
issues a warning and simply copies its input to its standard output.
.SH "SEE ALSO"
cnt(1), histo(1), neaten(1), rcalc(1), rlam(1), tabfunc(1), total(1)
Revision:	1.2
Committed:	Thu Sep 5 18:50:30 2013 UTC (12 years, 1 month ago) by greg
Branch:	MAIN
Changes since 1.1:	+8 -12 lines
Log Message:	Minor wording fixes
#	User	Rev	Content
1	greg	1.2	.\" RCSid "$Id: rcollate.1,v 1.1 2013/09/05 17:53:22 greg Exp $"
2	greg	1.1	.TH RCOLLATE 1 7/8/97 RADIANCE
3			.SH NAME
4			rcollate - resize or transpose matrix data
5			.SH SYNOPSIS
6			.B rcollate
7			[
8			.B \-h
9			][
10			.B \-f[afdb][N]]
11			][
12			.B \-t
13			][
14			.B "\-ic in_col"
15			][
16			.B "\-ir in_row"
17			][
18			.B "\-oc out_col"
19			][
20			.B "\-or out_row"
21			]
22			[
23			.B input.dat
24			]
25			.SH DESCRIPTION
26			.I Rcollate
27			reads in a single matrix file (table) and reshapes it to have
28			the number of columns specified by the
29			.I \-oc
30			option.
31			By default, the file is assumed to include an information header, which
32			is copied to the standard output along with the command name, but the
33			.I \-h
34			option may be used to turn this behavior off.
35			.PP
36			The input format is assumed to be ASCII, with three white-space separated words
37			(typically numbers) in each record.
38			A different input format may be specified with the
39			.I \-f
40			option.
41			The suboptions are
42			.I \-fa,
43			.I \-ff,
44			.I \-fd,
45			and
46			.I \-fb
47			for ASCII, float, double, and binary, respectively.
48			An optional count may be attached to specify the number of data elements per
49			record, which defaults to 1.
50			Thus, the default setting is
51			.I \-fa3.
52			Since
53			.I rcollate
54			does not interpret the fields, all binary options of the same
55			length have the same result.
56			On most architectures,
57			.I \-ff6,
58			.I \-fd3,
59			and
60			.I \-fb24
61			would all be equivalent.
62	greg	1.2	Note that the lack of row separators in binary files means that
63	greg	1.1	.I rcollate
64			does not actually do anything for binary files unless the transpose
65			option is given, also.
66			.PP
67			The transpose option,
68			.I \-t
69			swaps rows and columns on the input.
70			For binary files, the user must specify at least one input or output
71			dimension to define the matrix size.
72			For ASCII files,
73			.I rcollate
74			will automatically determine the number of columns based on the
75			position of the first EOL (end-of-line) character, and the number
76	greg	1.2	of rows based on the total count of records in the file.
77	greg	1.1	The user may override these determinations, allowing the matrix to
78			be resized as well as transposed.
79			If input and output dimensions are given, the number of input rows
80			must equal the number of output columns,
81	greg	1.2	and the number of input columns must equal the number of output rows.
82			For large transpose operations on Unix systems, it is most efficient
83	greg	1.1	to specify the input file on the command line, rather than reading
84			from the standard input, since
85			.I rcollate
86			can map the file directly into memory.
87			.SH EXAMPLE
88			To change put 8760 color triplets per row in a matrix with no header:
89			.IP "" .2i
90			rcollate -h \-oc 8760 input.dat > col8760.dat
91			.PP
92			To transpose a binary file with 145 float triplets per input row:
93			.IP "" .2i
94			rcollate -ff3 -ic 145 -t orig.flt > transpose.flt
95			.SH AUTHOR
96			Greg Ward
97			.SH NOTES
98			The
99			.I rcollate
100			command is rather inflexible when it comes to output field and record
101			separators for ASCII data.
102	greg	1.2	It accepts any amount of white space between fields
103	greg	1.1	on input, but only produces spaces as field separators
104	greg	1.2	between words and tabs as record separators on output.
105	greg	1.1	Output row separtors will always be an EOL, which may differ between systems.
106			.PP
107			If no options are given on the command line, or a binary file is specified
108			without a transpose,
109			.I rcollate
110	greg	1.2	issues a warning and simply copies its input to its standard output.
111	greg	1.1	.SH "SEE ALSO"
112			cnt(1), histo(1), neaten(1), rcalc(1), rlam(1), tabfunc(1), total(1)