man/man1/rcollate.1

.\" RCSid "$Id: rcollate.1,v 1.5 2014/05/30 00:00:54 greg Exp $"
.TH RCOLLATE 1 7/8/97 RADIANCE
.SH NAME
rcollate - resize or transpose matrix data
.SH SYNOPSIS
.B rcollate
[
.B \-h[io]
][
.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.
The
.I \-hi
option may be used to turn off the expectation of a header on input.
The
.I \-ho
option turns off header output, and
.I \-h
by itself turns off both input and output headers.
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:	1.6
Committed:	Fri May 30 16:50:43 2014 UTC (10 years, 11 months ago) by greg
Branch:	MAIN
Changes since 1.5:	+10 -4 lines
Log Message:	Added -hi and -ho options to control input and output headers separately
#	Content
1	.\" RCSid "$Id: rcollate.1,v 1.5 2014/05/30 00:00:54 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[io]
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.
35	The
36	.I \-hi
37	option may be used to turn off the expectation of a header on input.
38	The
39	.I \-ho
40	option turns off header output, and
41	.I \-h
42	by itself turns off both input and output headers.
43	The
44	.I \-w
45	option turns off non-fatal warning messages, such as unexpected EOD.
46	.PP
47	The input format is assumed to be ASCII, with three white-space separated words
48	(typically numbers) in each record.
49	A different input format may be specified with the
50	.I \-f
51	option.
52	The suboptions are
53	.I \-fa,
54	.I \-ff,
55	.I \-fd,
56	and
57	.I \-fb
58	for ASCII, float, double, and binary, respectively.
59	An optional count may be attached to specify the number of data elements per
60	record, which defaults to 1.
61	Thus, the default setting is
62	.I \-fa3.
63	Since
64	.I rcollate
65	does not interpret the fields, all binary options of the same
66	length have the same result.
67	On most architectures,
68	.I \-ff6,
69	.I \-fd3,
70	and
71	.I \-fb24
72	would all be equivalent.
73	Note that the lack of row separators in binary files means that
74	.I rcollate
75	does not actually do anything for binary files unless the transpose
76	option is given, also.
77	.PP
78	If an input header is present, it may contain the format, number of components
79	and matrix dimensions.
80	In such cases, the
81	.I \-ic,
82	.I \-ir
83	and
84	.I \-f
85	options are not required, but will be checked against the header
86	information if provided.
87	.PP
88	The transpose option,
89	.I \-t
90	swaps rows and columns on the input.
91	For binary files, the user must specify at least one input or output
92	dimension to define the matrix size.
93	For ASCII files,
94	.I rcollate
95	will automatically determine the number of columns based on the
96	position of the first EOL (end-of-line) character, and the number
97	of rows based on the total count of records in the file.
98	The user may override these determinations, allowing the matrix to
99	be resized as well as transposed.
100	If input and output dimensions are given, the number of input rows
101	must equal the number of output columns,
102	and the number of input columns must equal the number of output rows.
103	For large transpose operations on Unix systems, it is most efficient
104	to specify the input file on the command line, rather than reading
105	from the standard input, since
106	.I rcollate
107	can map the file directly into virtual memory.
108	.SH EXAMPLE
109	To change put 8760 color triplets per row in a matrix with no header:
110	.IP "" .2i
111	rcollate -h \-oc 8760 input.dat > col8760.dat
112	.PP
113	To transpose a binary file with 145 float triplets per input row:
114	.IP "" .2i
115	rcollate -ff3 -ic 145 -t orig.flt > transpose.flt
116	.SH AUTHOR
117	Greg Ward
118	.SH NOTES
119	The
120	.I rcollate
121	command is rather inflexible when it comes to output field and record
122	separators for ASCII data.
123	It accepts any amount of white space between fields
124	on input, but only produces spaces as field separators
125	between words and tabs as record separators on output.
126	Output row separtors will always be an EOL, which may differ between systems.
127	.PP
128	If no options are given on the command line, or a binary file is specified
129	without a transpose,
130	.I rcollate
131	issues a warning and simply copies its input to its standard output.
132	.SH "SEE ALSO"
133	cnt(1), histo(1), neaten(1), rcalc(1), rlam(1), tabfunc(1), total(1)