Searching the Help
To search for information in the Help, type a word or phrase in the Search box. When you enter a group of words, OR is inferred. You can use Boolean operators to refine your search.
Results returned are case insensitive. However, results ranking takes case into account and assigns higher scores to case matches. Therefore, a search for "cats" followed by a search for "Cats" would return the same number of Help topics, but the order in which the topics are listed would be different.
Words and Phrases
| Search for | Example | Results |
|---|---|---|
| A single word | cat
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Topics that contain the word "cat". You will also find its grammatical variations, such as "cats". |
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A phrase. You can specify that the search results contain a specific phrase. |
"cat food" (quotation marks) |
Topics that contain the literal phrase "cat food" and all its grammatical variations. Without the quotation marks, the query is equivalent to specifying an OR operator, which finds topics with one of the individual words instead of the phrase. |
Using Boolean Operators
| Search for | Operator | Example |
|---|---|---|
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Two or more words in the same topic |
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| Either word in a topic |
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| Topics that do not contain a specific word or phrase |
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| Topics that contain one string and do not contain another | ^ (caret) |
cat ^ mouse
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| A combination of search types | ( ) parentheses |
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Stem dictionary
The stem dictionary, [ir_languagefiles_path]language.STM, contains the stem, which is the part of a term used in the IR indices. IR Expert considers each word to have a stem (defined in the .STM file) and many possible suffixes (defined in the .SUF file). For example: For the words go and going, “go” is the stem and “ing” is the suffix. Entries in the .STM file consist of the stem word (go) followed by a blank, and then an index entry in the suffix file (.SUF) would be “go 1“. This index indicates which suffix values are acceptable for the stem word.
Related topics
Stemming
IR Expert
How IR Expert evaluates documents for relevance
IR Expert file descriptions
Normals dictionary
Stemming example
Stop word file
Suffix file
Creating an IR file
Access IR Expert
Edit queries for Find Solution
Implement IR searches
Load data files with IR Expert keys
Start IR Asynchronous mode
