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Word frequency list

Posted: Wed Sep 13, 2017 3:38 am
by grantb
Today, I wanted to create word frequency list of the words used in job descriptions in my company. I didn't find one ready made filter for exactly this in TextPipe Standard, but it was easy to do in two steps, using the "text to word list" filter to create a single text file of all the words in my text-format job description archive, and using that text file as input for the "count duplicate lines" filter.

The "text to word list" read all my job descriptions and put each word on a single line; the "count duplicate lines" filter then counted all the words and produced a second text file with the words and a word count.

Just what I needed. I'm sharing this here in case others search for something similar.

Re: Word frequency list

Posted: Wed Sep 13, 2017 10:54 pm
by DataMystic Support
Thanks Grant - you can upload filters too provided they are zipped.

Re: Word frequency list

Posted: Tue Sep 19, 2017 3:35 am
by DFH
Help for the Text to word list filter states:
This filter takes all the incoming words and outputs them one per line, with a DOS line feed between them. This can be used to generate word lists for Indexes, encryption programs etc. Hyphenated words are recognised as single words, provided that they aren't broken across lines. To get around this limitation, use a Search and Replace filter to replace hyphens followed by line feeds with just a hyphen.
Only the hyphen/minus is counted as a special case.

One obvious limitation is how the filter should deal with English possessives (or other abbreviations) ending with ’s.

Currently, such words would be stripped of the ’s, which may not be what the user requires.

To workaround this, use a Search and Replace filter to replace by an unused letter such as the small letter thorn þ.
Then restore the afterwards by means of another Search and Replace filter.

Re: Word frequency list

Posted: Tue Sep 19, 2017 3:37 am
by DFH
To what extent is the Text to word list filter UTF-8 aware?

The help page does not even indicate whether it's limited to ANSI or ASCII letters.

David

Re: Word frequency list

Posted: Thu Sep 28, 2017 12:30 am
by DFH
I await a response about the UTF-8 awareness. Thanks.

David

Re: Word frequency list

Posted: Mon Oct 02, 2017 6:31 pm
by sindyciaray
Its Limited to to ANSI or ASCII letters.

Re: Word frequency list

Posted: Tue Oct 17, 2017 9:57 pm
by DataMystic Support
Yes, it is limited to ASCII or ANSI characters, although we are adding English possessives for 10.4.1+

You can also use a pattern match to find:

Code: Select all

[[:alnum:]\-\']+?
and replace with
$0\r\n

- this works for UTF-8 data.

Re: Word frequency list

Posted: Sat Oct 21, 2017 12:14 am
by DFH
The correct Unicode character that should be used in proper typography for possessives is not \x27 apostrophe but rather U+2019 right single quotation mark. That's true for both English and French as well as a few other languages based on the Latin script.

Users of the enhanced feature may not be aware of this.

David

Re: Word frequency list

Posted: Sat Oct 21, 2017 12:23 am
by DFH
Sticking to ANSI, many plural possessives do not end with 's but with s'.

However, the possessive for singular cockatrice is cockatrice' as in "a cockatrice' den".

Not many people know that, unless they are familiar with Isaiah 11:8 in the Authorised Version of the Bible.

It's not the only unusual singular possessive in the English language.

Best regards,

Re: Word frequency list

Posted: Sat Oct 21, 2017 12:28 am
by DFH
An alternative method is to use a remove patterns matching [[:punct:]] after first replacing any special punctuation marks you want to keep as part of valid words.

After the words list has been made, the temporary replacements can be readily reverted.

Re: Word frequency list

Posted: Sat Oct 21, 2017 12:46 am
by DFH
Hereby attached an example for making a counted words list for French words in a complete Bible.

The data was derived from https://github.com/MarjorieBurghart/VulgateGlaire

NB. The data for the input file had already been preprocessed by means of other bespoke TextPipe filters.

The output is uploaded in this issue:
https://github.com/MarjorieBurghart/VulgateGlaire/issues/16

David

Re: Word frequency list

Posted: Mon Oct 23, 2017 7:24 am
by DataMystic Support
Thanks David!