man/man1/rcollate.1

.\" RCSid "$Id: rlam.1,v 1.7 2010/06/18 21:22:49 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 also that the lack of row separators in binary files means that
.I rcollate
does not actually do anything for binary files unless the transpose
.I \(\-t\)
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 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
with the
.I \-t
option.
For large transpose operations on Unix systems, it is much more 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 number or type of white space between input fields
on input, but only produces spaces as field separators
between words and tabs as record separators.
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 the standard output.
.SH "SEE ALSO"
cnt(1), histo(1), neaten(1), rcalc(1), rlam(1), tabfunc(1), total(1)
Revision:	1.1
Committed:	Thu Sep 5 17:53:22 2013 UTC (11 years, 8 months ago) by greg
Branch:	MAIN
Log Message:	Created rcollate command to support 5-phase method
#	Content
1	.\" RCSid "$Id: rlam.1,v 1.7 2010/06/18 21:22:49 greg Exp $"
2	.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	Note also that the lack of row separators in binary files means that
63	.I rcollate
64	does not actually do anything for binary files unless the transpose
65	.I \(\-t\)
66	option is given, also.
67	.PP
68	The transpose option,
69	.I \-t
70	swaps rows and columns on the input.
71	For binary files, the user must specify at least one input or output
72	dimension to define the matrix size.
73	For ASCII files,
74	.I rcollate
75	will automatically determine the number of columns based on the
76	position of the first EOL (end-of-line) character, and the number
77	of rows based on the count of records in the file.
78	The user may override these determinations, allowing the matrix to
79	be resized as well as transposed.
80	If input and output dimensions are given, the number of input rows
81	must equal the number of output columns,
82	and the number of input columns must equal the number of output rows
83	with the
84	.I \-t
85	option.
86	For large transpose operations on Unix systems, it is much more efficient
87	to specify the input file on the command line, rather than reading
88	from the standard input, since
89	.I rcollate
90	can map the file directly into memory.
91	.SH EXAMPLE
92	To change put 8760 color triplets per row in a matrix with no header:
93	.IP "" .2i
94	rcollate -h \-oc 8760 input.dat > col8760.dat
95	.PP
96	To transpose a binary file with 145 float triplets per input row:
97	.IP "" .2i
98	rcollate -ff3 -ic 145 -t orig.flt > transpose.flt
99	.SH AUTHOR
100	Greg Ward
101	.SH NOTES
102	The
103	.I rcollate
104	command is rather inflexible when it comes to output field and record
105	separators for ASCII data.
106	It accepts any number or type of white space between input fields
107	on input, but only produces spaces as field separators
108	between words and tabs as record separators.
109	Output row separtors will always be an EOL, which may differ between systems.
110	.PP
111	If no options are given on the command line, or a binary file is specified
112	without a transpose,
113	.I rcollate
114	issues a warning and simply copies its input to the standard output.
115	.SH "SEE ALSO"
116	cnt(1), histo(1), neaten(1), rcalc(1), rlam(1), tabfunc(1), total(1)