| 1 | .\"------------------------------------------------------------
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| 2 | .\" Id - set Rv,revision, and Dt, Date using rcs-Id tag.
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| 3 | .de Id
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| 4 | .ds Rv \\$3
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| 5 | .ds Dt \\$4
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| 6 | ..
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| 7 | .Id $Id: mg_invf_dump.1 3745 2003-02-20 21:20:24Z mdewsnip $
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| 8 | .\"------------------------------------------------------------
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| 9 | .TH mg_invf_dump 1 \*(Dt CITRI
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| 10 | .SH NAME
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| 11 | mg_invf_dump \- Dump out an inverted file in ASCII
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| 12 | .SH SYNOPSIS
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| 13 | .B mg_invf_dump
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| 14 | [
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| 15 | .B \-h
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| 16 | ]
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| 17 | [
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| 18 | .B \-b
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| 19 | ]
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| 20 | [
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| 21 | .B \-w
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| 22 | ]
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| 23 | [
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| 24 | .B \-t
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| 25 | ]
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| 26 | [
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| 27 | .BI \-d " directory"
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| 28 | ]
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| 29 | .BI \-f " name"
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| 30 | .SH DESCRIPTION
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| 31 | This program dumps out an inverted file produced by the
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| 32 | .BR mg (1)
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| 33 | system as ASCII numbers. This program could be used in conjunction
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| 34 | with
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| 35 | .BR mgdictlist (1)
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| 36 | to write simple shell programs that work with the inverted files. The
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| 37 | output from the program looks something like this:
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| 38 | .LP
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| 39 | .RS
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| 40 | .ft 3
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| 41 | .nf
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| 42 | 6 337
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| 43 | 1
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| 44 | 1 1
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| 45 | 1
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| 46 | 5 1
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| 47 | 1
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| 48 | 2 1
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| 49 | 1
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| 50 | 1 1
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| 51 | 4
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| 52 | 1 3
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| 53 | 2 7
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| 54 | 3 2
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| 55 | 5 2
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| 56 | 1
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| 57 | 1 1
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| 58 | . . .
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| 59 | .fi
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| 60 | .ft
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| 61 | .RE
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| 62 | The first number (6) is the number of documents in the collection. It
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| 63 | is followed by the number of different terms in the collection. For
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| 64 | each term, the number of different documents it occurs in follows. The
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| 65 | document numbers that the term occurs in are listed next. If
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| 66 | .B \-w
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| 67 | is specified, then the number of times the term occurred in the
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| 68 | document is printed alongside the document number.
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| 69 | If
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| 70 | .B \-t
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| 71 | is specified, the term itself is also displayed in quotes.
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| 72 | .SH OPTIONS
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| 73 | Options may appear in any order.
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| 74 | .TP "\w'\fB\-d\fP \fIdirectory\fP'u+2n"
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| 75 | .B \-h
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| 76 | This displays a usage line on
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| 77 | .IR stderr .
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| 78 | .TP
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| 79 | .B \-b
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| 80 | This option will cause the output from the program to be in fixed-size
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| 81 | binary numbers, rather than in ASCII.
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| 82 | .TP
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| 83 | .B \-w
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| 84 | If the inverted file is a level-2 or level-3 inverted file, this causes
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| 85 | the word counts per document to be output.
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| 86 | .TP
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| 87 | .B \-t
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| 88 | This option causes each term to be displayed along with the number of
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| 89 | documents it appears in. The term is printed in quotes,
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| 90 | as in "the".
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| 91 | .TP
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| 92 | .BI \-d " directory"
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| 93 | This specifies the directory where the document collection can be found.
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| 94 | .TP
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| 95 | .BI \-f " name"
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| 96 | This specifies the base name of the document collection.
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| 97 | .SH ENVIRONMENT
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| 98 | .TP "\w'\fBMGDATA\fP'u+2n"
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| 99 | .SB MGDATA
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| 100 | If this environment variable exists, then its value is used as the
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| 101 | default directory where the
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| 102 | .BR mg (1)
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| 103 | collection files are. If this variable does not exist, then the
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| 104 | directory \*(lq\fB.\fP\*(rq is used by default. The command line
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| 105 | option
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| 106 | .BI \-d " directory"
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| 107 | overrides the directory in
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| 108 | .BR MGDATA .
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| 109 | .SH FILES
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| 110 | .TP 20
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| 111 | .B *.invf.dict
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| 112 | The compressed stemmed dictionary.
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| 113 | .TP
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| 114 | .B *.invf.ORG
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| 115 | The original inverted file saved by
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| 116 | .BR mg_invf_rebuild .
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| 117 | .TP
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| 118 | .B *.invf
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| 119 | The inverted file.
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| 120 | .SH "SEE ALSO"
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| 121 | .na
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| 122 | .BR mg (1),
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| 123 | .BR mg_compression_dict (1),
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| 124 | .BR mg_fast_comp_dict (1),
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| 125 | .BR mg_get (1),
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| 126 | .BR mg_invf_dict (1),
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| 127 | .BR mg_invf_rebuild (1),
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| 128 | .BR mg_passes (1),
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| 129 | .BR mg_perf_hash_build (1),
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| 130 | .BR mg_text_estimate (1),
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| 131 | .BR mg_weights_build (1),
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| 132 | .BR mgbilevel (1),
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| 133 | .BR mgbuild (1),
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| 134 | .BR mgdictlist (1),
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| 135 | .BR mgfelics (1),
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| 136 | .BR mgquery (1),
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| 137 | .BR mgstat (1),
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| 138 | .BR mgtic (1),
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| 139 | .BR mgticbuild (1),
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| 140 | .BR mgticdump (1),
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| 141 | .BR mgticprune (1),
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| 142 | .BR mgticstat (1).
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