man/man1/rcollate.1

.\" RCSid "$Id: rcollate.1,v 1.4 2013/09/18 21:24:36 greg Exp $"
.TH RCOLLATE 1 7/8/97 RADIANCE
.SH NAME
rcollate - resize or transpose matrix data
.SH SYNOPSIS
.B rcollate
[
.B \-h
][
.B \-w
][
.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.
The
.I \-w
option turns off non-fatal warning messages, such as unexpected EOD.
.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
If an input header is present, it may contain the format, number of components
and matrix dimensions.
In such cases, the
.I \-ic,
.I \-ir
and
.I \-f
options are not required, but will be checked against the header
information if provided.
.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 virtual 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:	1.5
Committed:	Fri May 30 00:00:54 2014 UTC (10 years, 11 months ago) by greg
Branch:	MAIN
Changes since 1.4:	+11 -1 lines
Log Message:	Added NROWS, NCOLS and NCOMP to matrix headers
#	Content
1	.\" RCSid "$Id: rcollate.1,v 1.4 2013/09/18 21:24:36 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 \-w
11	][
12	.B \-f[afdb][N]]
13	][
14	.B \-t
15	][
16	.B "\-ic in_col"
17	][
18	.B "\-ir in_row"
19	][
20	.B "\-oc out_col"
21	][
22	.B "\-or out_row"
23	]
24	[
25	.B input.dat
26	]
27	.SH DESCRIPTION
28	.I Rcollate
29	reads in a single matrix file (table) and reshapes it to have
30	the number of columns specified by the
31	.I \-oc
32	option.
33	By default, the file is assumed to include an information header, which
34	is copied to the standard output along with the command name, but the
35	.I \-h
36	option may be used to turn this behavior off.
37	The
38	.I \-w
39	option turns off non-fatal warning messages, such as unexpected EOD.
40	.PP
41	The input format is assumed to be ASCII, with three white-space separated words
42	(typically numbers) in each record.
43	A different input format may be specified with the
44	.I \-f
45	option.
46	The suboptions are
47	.I \-fa,
48	.I \-ff,
49	.I \-fd,
50	and
51	.I \-fb
52	for ASCII, float, double, and binary, respectively.
53	An optional count may be attached to specify the number of data elements per
54	record, which defaults to 1.
55	Thus, the default setting is
56	.I \-fa3.
57	Since
58	.I rcollate
59	does not interpret the fields, all binary options of the same
60	length have the same result.
61	On most architectures,
62	.I \-ff6,
63	.I \-fd3,
64	and
65	.I \-fb24
66	would all be equivalent.
67	Note that the lack of row separators in binary files means that
68	.I rcollate
69	does not actually do anything for binary files unless the transpose
70	option is given, also.
71	.PP
72	If an input header is present, it may contain the format, number of components
73	and matrix dimensions.
74	In such cases, the
75	.I \-ic,
76	.I \-ir
77	and
78	.I \-f
79	options are not required, but will be checked against the header
80	information if provided.
81	.PP
82	The transpose option,
83	.I \-t
84	swaps rows and columns on the input.
85	For binary files, the user must specify at least one input or output
86	dimension to define the matrix size.
87	For ASCII files,
88	.I rcollate
89	will automatically determine the number of columns based on the
90	position of the first EOL (end-of-line) character, and the number
91	of rows based on the total count of records in the file.
92	The user may override these determinations, allowing the matrix to
93	be resized as well as transposed.
94	If input and output dimensions are given, the number of input rows
95	must equal the number of output columns,
96	and the number of input columns must equal the number of output rows.
97	For large transpose operations on Unix systems, it is most efficient
98	to specify the input file on the command line, rather than reading
99	from the standard input, since
100	.I rcollate
101	can map the file directly into virtual memory.
102	.SH EXAMPLE
103	To change put 8760 color triplets per row in a matrix with no header:
104	.IP "" .2i
105	rcollate -h \-oc 8760 input.dat > col8760.dat
106	.PP
107	To transpose a binary file with 145 float triplets per input row:
108	.IP "" .2i
109	rcollate -ff3 -ic 145 -t orig.flt > transpose.flt
110	.SH AUTHOR
111	Greg Ward
112	.SH NOTES
113	The
114	.I rcollate
115	command is rather inflexible when it comes to output field and record
116	separators for ASCII data.
117	It accepts any amount of white space between fields
118	on input, but only produces spaces as field separators
119	between words and tabs as record separators on output.
120	Output row separtors will always be an EOL, which may differ between systems.
121	.PP
122	If no options are given on the command line, or a binary file is specified
123	without a transpose,
124	.I rcollate
125	issues a warning and simply copies its input to its standard output.
126	.SH "SEE ALSO"
127	cnt(1), histo(1), neaten(1), rcalc(1), rlam(1), tabfunc(1), total(1)