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| 4 | <title>The Gatherer - Help Pages</title>
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| 13 | <font face="Verdana" size="5">
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| 14 | <strong>
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| 15 | 7.4 Sub-collections
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| 16 | </strong>
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| 17 | </font>
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| 18 | </td>
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| 25 | <font face="Verdana" size="3">
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| 26 | <p style="text-align:justify">
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| 27 | This section describes how to create sub-collections within a collection, and how to create indexes upon these sub-collections.
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| 28 | </p>
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| 29 |
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| 38 | <font face="Verdana" size="4">
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| 39 | <strong>
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| 40 | Contents
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| 50 | <font face="Verdana" size="4">
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| 51 | <strong>
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| 52 | <a href="#SI">Simple instructions</a>
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| 53 | </strong>
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| 54 | </a>
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| 55 | </font>
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| 61 | </td>
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| 62 | <td colspan="2">
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| 63 | <font face="Verdana" size="4">
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| 64 | Sub-collection controls
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| 65 | </font>
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| 66 | </a>
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| 72 | </td>
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| 74 | <font face="Verdana" size="4">
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| 75 | Add a sub-collection
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| 76 | </font>
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| 77 | </a>
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| 78 | </td>
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| 85 | <font face="Verdana" size="4">
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| 86 | Remove a sub-collection
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| 87 | </font>
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| 88 | </a>
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| 92 | <td colspan="3">
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| 93 | <font face="Verdana" size="4">
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| 94 | <strong>
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| 95 | <a href="#AI">Advanced instructions</a>
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| 96 | </strong>
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| 97 | </a>
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| 106 | <font face="Verdana" size="4">
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| 107 | Sub-index controls
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| 108 | </font>
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| 109 | </a>
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| 117 | <font face="Verdana" size="4">
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| 118 | Add a sub-index
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| 119 | </font>
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| 129 | Remove a sub-index
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| 139 | <font face="Verdana" size="4">
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| 140 | Set default sub-index
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| 151 | Clear default sub-index
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| 164 | <td colspan="3" width="100%">
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| 165 | <img height="20" src="gatherer_small.gif" width="20">
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| 166 | <font face="Verdana" size="4">
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| 167 | <u>
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| 168 | <a name="SI">Simple Instructions:</a>
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| 169 | </u>
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| 170 | <font size="3">
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| 171 | <p style="text-align:justify">
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| 172 | The Sub-collections feature allows you to group together all documents in a collection for which a specified metadata value matches a given pattern. Within this section are two related views, chosen by clicking the appropriate tab on the tabbed pane. The Sub-collection Controls are discussed here, while the Sub-index Controls are relegated to the 'advanced topics' below.
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| 173 | </p>
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| 174 | <p style="text-align:justify">
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| 175 | To add a new sub-collection, first give it a name by typing into the name field. Next, choose what part of the documents must match in order to belong to this sub-collection. You can choose any metadata, or the name of the file in question. Next, enter a regular expression that will be used in the match. You can toggle between [I]ncluding documents that match the filter, or e[X]cluding them. Finally, you can specify flags to be set while matching. These may be any of the standard PERL regular expression flags, such as 'i' for case-insensitive matching; alternatively just leave this field blank. Once you have filled out these fields, click on the [A]dd New Sub-collection button to add the sub-collection to the list. This list contains the sub-collection commands exactly as they appear in the collection configuration file.
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| 176 | </p>
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| 177 | <p style="text-align:justify">
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| 178 | To remove a sub-collection, select it from the list of assigned sub-collections and click [R]emove Selected Sub-collection.
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| 179 | </p>
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| 180 |
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| 181 | </font>
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| 182 | </p>
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| 183 | </td>
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| 184 | </tr>
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| 185 | <tr bgcolor="#E0F0E0">
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| 186 | <td colspan="3" width="100%">
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| 187 | <img height="20" src="gatherer_small.gif" width="20">
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| 188 | <font face="Verdana" size="4">
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| 189 | <u>
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| 190 | <a name="AI">Advanced Instructions:</a>
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| 191 | </u>
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| 192 | <font size="3">
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| 193 | <p style="text-align:justify">
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| 194 | Once you have a sub-collection you can instruct Greenstone to build indexes specifically for that sub-collection, or for a group of sub-collections. To do this, click on the Sub-index Controls tab. The centre of the pane changes to show two lists, a field and four buttons. The upper list shows all currently assigned Sub-collections. Below it is a list of groupings for which you can build indexes. The field shows the current default sub-collection sub-index. Note that sub-indexes are not the same as indexes.
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| 195 | </p>
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| 196 | <p style="text-align:justify">
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| 197 | To assign a sub-index, select the desired sub-collection or sub-collections from the upper list, using multiple selection methods as necessary. Now click [A]dd Selected As New Sub-index, and a new grouping for the selected sub-collections will appear in the assigned sub-indexes.
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| 198 | </p>
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| 199 | <p style="text-align:justify">
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| 200 | Remove an existing sub-index group be first selecting it from the sub-index list, then clicking the [R]emove Selected Sub-index.
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| 201 | </p>
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| 202 | <p style="text-align:justify">
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| 203 | You can make a particular sub-index the default by selecting it from the list of sub-indexes, then click [S]et Default Sub-index. The grouping of the selected sub-index will appear in the default sub-index field.
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| 204 | </p>
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| 205 | <p style="text-align:justify">
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| 206 | To clear the default sub-index, click [C]lear Default Sub-index.
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| 207 | </p>
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| 208 |
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| 209 | </font>
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| 210 | </p>
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| 246 | </body>
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| 247 | </html>
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