Programming Forums > Script Programming > Python

Dietrich · Mar 4th, 2005, 1:06 AM

I need to read in a text file and find out how many times a particular word appears in the text. Any ideas?

Dizzutch · Mar 4th, 2005, 9:17 AM

sure, make two arrays, one that stores words, one that stores numbers, make them the same size ex.
1 - A 1 - 1
2 - B 2 - 3
.. ..
n - Z n - 5
so now you go through every word in the file, and if it's already in the first array, increment the index at the second array, if it doens't exist yet, add it to the array.
good luck
Dizz

Dietrich · Mar 4th, 2005, 10:49 AM

How do I separate my text from the file into words?

Dizzutch · Mar 4th, 2005, 12:38 PM

using python? no idea, but it's a common thing, search google

Fred · Mar 4th, 2005, 3:56 PM

I can't give you an exact code, but you can check each letter for a space, and the slice the text from space to space and save it in a list or dictionary...
How I do not exactely know, but something like this might work:

(Toggle Plain Text)

list = []

for x text:
   if x == ' ':
      list.append[:#till the space](There should be some way, to figure out which index it has...)
      text.del[:space+1] (so that the counting restarts from zero in the next run of the loop)

Then you should have all the words in a list...
As soon as I get home, and have acces to a python, I will try and figure out a way... If you are faster then me, be sure to post it...

Hope this helped a bit

Fred · Mar 4th, 2005, 5:23 PM

Here the promised code:

(Toggle Plain Text)

import string
text = 'h h h'
l = []
for x in text:
    if x == ' ':
        space = text.index(' ')
        part = text[:space]
        l.append(part)
        part1 = text[:space + 1]
        string.join(string.split(text, part1), '') #NO space between '' !!!!

print l

It has one problem though:
It does not add the last word of the string to the list. As soon as I come up with a solution to that one, I will edit my post or post new...
hope this helps

Fred · Mar 4th, 2005, 5:48 PM

Well...
As always, when I am doing something, there is a better way:

(Toggle Plain Text)

text.split()

That does the job, and includes the last word...
All that work for nothing :mad:

al1986 · Mar 5th, 2005, 8:20 AM

Couldn't you just use the "count" method of the string type?
e.g.

s = "h h h"
s.count("h")

(returns 3)

Dietrich · Mar 5th, 2005, 10:43 AM

Quote:

Originally Posted by Fred

Here the promised code:

(Toggle Plain Text)

import string
text = 'h h h'
l = []
for x in text:
    if x == ' ':
        space = text.index(' ')
        part = text[:space]
        l.append(part)
        part1 = text[:space + 1]
        string.join(string.split(text, part1), '') #NO space between '' !!!!

print l

It has one problem though:
It does not add the last word of the string to the list. As soon as I come up with a solution to that one, I will edit my post or post new...
hope this helps

text = text + ' ' # append a space
will make it work
thanks

Dietrich · Mar 5th, 2005, 10:48 AM

Quote:

Originally Posted by Fred

Well...
As always, when I am doing something, there is a better way:

(Toggle Plain Text)

text.split()

That does the job, and includes the last word...
All that work for nothing :mad:

wordlist = str1.split()
works really great!!

Now I just sort the list and find the duplicate words.
Or does sombody have a smarter solution?

thanks again!

Mar 4th, 2005, 1:06 AM	#1
Dietrich Professional Programmer Join Date: Feb 2005 Posts: 434 Rep Power: 4	Find a word in a text file I need to read in a text file and find out how many times a particular word appears in the text. Any ideas? __________________ I looked it up on the Intergnats!

Mar 4th, 2005, 9:17 AM	#2
Dizzutch Professional Programmer Join Date: Dec 2004 Location: Worcester, MA Posts: 441 Rep Power: 4	sure, make two arrays, one that stores words, one that stores numbers, make them the same size ex. 1 - A 1 - 1 2 - B 2 - 3 .. .. n - Z n - 5 so now you go through every word in the file, and if it's already in the first array, increment the index at the second array, if it doens't exist yet, add it to the array. good luck Dizz __________________ naked pictures of you \| PFO F@H stats

Mar 4th, 2005, 10:49 AM	#3
Dietrich Professional Programmer Join Date: Feb 2005 Posts: 434 Rep Power: 4	How do I separate my text from the file into words? __________________ I looked it up on the Intergnats!

Mar 4th, 2005, 12:38 PM	#4
Dizzutch Professional Programmer Join Date: Dec 2004 Location: Worcester, MA Posts: 441 Rep Power: 4	using python? no idea, but it's a common thing, search google __________________ naked pictures of you \| PFO F@H stats

Mar 4th, 2005, 3:56 PM	#5
Fred Programmer Join Date: Feb 2005 Posts: 67 Rep Power: 4	I can't give you an exact code, but you can check each letter for a space, and the slice the text from space to space and save it in a list or dictionary... How I do not exactely know, but something like this might work: (Toggle Plain Text) list = [] for x text: if x == ' ': list.append[:#till the space](There should be some way, to figure out which index it has...) text.del[:space+1] (so that the counting restarts from zero in the next run of the loop) list = [] for x text: if x == ' ': list.append[:#till the space](There should be some way, to figure out which index it has...) text.del[:space+1] (so that the counting restarts from zero in the next run of the loop) Then you should have all the words in a list... As soon as I get home, and have acces to a python, I will try and figure out a way... If you are faster then me, be sure to post it... Hope this helped a bit

Mar 4th, 2005, 5:23 PM	#6
Fred Programmer Join Date: Feb 2005 Posts: 67 Rep Power: 4	Here the promised code: (Toggle Plain Text) import string text = 'h h h' l = [] for x in text: if x == ' ': space = text.index(' ') part = text[:space] l.append(part) part1 = text[:space + 1] string.join(string.split(text, part1), '') #NO space between '' !!!! print l import string text = 'h h h' l = [] for x in text: if x == ' ': space = text.index(' ') part = text[:space] l.append(part) part1 = text[:space + 1] string.join(string.split(text, part1), '') #NO space between '' !!!! print l It has one problem though: It does not add the last word of the string to the list. As soon as I come up with a solution to that one, I will edit my post or post new... hope this helps Last edited by Fred; Mar 4th, 2005 at 5:26 PM.

Mar 4th, 2005, 5:48 PM	#7
Fred Programmer Join Date: Feb 2005 Posts: 67 Rep Power: 4	Well... As always, when I am doing something, there is a better way: (Toggle Plain Text) text.split() text.split() That does the job, and includes the last word... All that work for nothing :mad:

Mar 5th, 2005, 8:20 AM	#8
al1986 Newbie Join Date: Feb 2005 Posts: 24 Rep Power: 0	Couldn't you just use the "count" method of the string type? e.g. s = "h h h" s.count("h") (returns 3)

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Programming Forums > Script Programming > Python

Find a word in a text file