XPMis to enter a percent sign (
%) followed by a two digit number from
99representing percentage of proximity, followed by the pattern you wish, as:
%72Raygun, to find "
Reagan" . If no numbers are listed after the percent sign, the default of
80%will be used; as,
%lithwania, looks for an
80%match and will find "
XPMis not a stand-alone tool; it can only be used from within a Metamorph query. It can be used in intersection with other designated words, expressions, or
+' or `
-'; do not leave a space between the operator and the percent sign; as:
+%72Raygun. It does not need to be put in quotes.
XPMis case insensitive just as are other Metamorph special searches.
XPMwill be called by Metamorph. Use
XPMin front of words or otherwise fixed length patterns not inclusive of
Let us say you are looking for something that happened in Reykjavik
last week, and you are almost certain it is in your file somewhere.
There is such a reference in the demo news file which is shipped with
the program, so you can try this. Perhaps you specified on the
query line "
event Rakechavick" but got no
hit, as you were not spelling the name correctly. You can enter the
same search, but call up
XPM for the word you don't know how to
spell. For example:
This query will look for an intersection of the word "
(plus all its equivalences) and a
64% approximation to the
entered pattern "
Rakechavick". This will in fact
successfully locate a hit which discusses "
occurred at "
When looking for this sort of thing, you can keep lowering the
specified percentage until you find what you want. You'll notice that
the lower the specified proximity, the more "noise" you allow;
meaning that in this case you will allow many patterns in addition to
Reykjavik", as you are telling the program to look for
anything at all which approximates
64% of the entered pattern.
Such a facility has many applications. Probably the most common use
XPM is when looking for proper nouns that have either
unknown or multiple spellings. "
Qadhafi" is an example of a
name which is in the news often, and has several different completely
accepted spellings. Someone for whom English is a second language can
much more successfully search for things he cannot spell by calling up
XPM when necessary with the percent (
%) sign. And in
instances where there are file imperfections such as human typos or
OCR scanning oddities,
XPM will call up the full range of
possibilities, which can be very useful in catch-all batchmode
searching, or otherwise.