[R] Help in R code
PIKAL Petr
petr.pikal at precheza.cz
Mon Mar 7 12:16:01 CET 2016
Hi
Keep your reply to the list.
Hm. There is natural language processing section in Task View. Maybe you could use already developed instruments for processing text. I vaguely remember there was also some article in R journal about text mining.
And searching internet by
R text mining
gave me plenty of possible suggestions including e.g package tm.
First line of your code gave me an error
> s <- unlist(lapply(posText, function(x) { str_split(x, "\n") }))
Error in lapply(posText, function(x) { : object 'posText' not found
And again
you still fail to keep to the recommended way of asking questions
1. Plain text, not HTML posts
2. input and output data sent as result of dput(posText[selection])
3. provide ***reproducible*** code
Instead of trying to persuade all of us to accept your way of mailing you shall comply to ours if you want any reasonable help.
Cheers
Petr
Petr Pikal
From: deepak aggarwal [mailto:talk4deepak at gmail.com]
Sent: Thursday, March 03, 2016 2:07 PM
To: PIKAL Petr
Subject: Re: [R] Help in R code
I have a column A having sentences and column B have some words. I want to check the part of speech column B word belongs to sentence present in column A.
Currently I am able to get part of speech for a single sentence using following code:
I am trying to get part of speech corresponds to each sentence in text file. Please suggest code for this.
On Wed, Mar 2, 2016 at 3:35 PM, PIKAL Petr <petr.pikal at precheza.cz<mailto:petr.pikal at precheza.cz>> wrote:
Hi
AFAIK what you say now is quite different from what you have told before. You want to get rid of all sentences which lack vattrwords.
Maybe it can be done by charmatch
> test<-paste("AAA AAA", "BBB", "CCC CCC", sep=".")
> test
[1] "AAA AAA.BBB.CCC CCC"
>
> test2<-c("AAA", "CCC")
> test.s<-unlist(strsplit(test, "\\.<file:///\\.>"))
> test.s[charmatch(test2, test.s)]
[1] "AAA AAA" "CCC CCC"
BTW, you still fail to keep to the recommended way of asking questions
Plain text, not HTML posts
input and output data sent as result of dput()
provide reproducible code with errors you encountered.
Cheers
Petr
From: deepak aggarwal [mailto:talk4deepak at gmail.com<mailto:talk4deepak at gmail.com>]
Sent: Wednesday, March 02, 2016 8:59 AM
To: PIKAL Petr
Cc: r-help at r-project.org<mailto:r-help at r-project.org>
Subject: Re: [R] Help in R code
Hi Petr,
#loading word to be matched
at_list <- read.delim(file='C:/******/All.txt', header=FALSE, stringsAsFactors=FALSE)
names(at_list) <- c('attr')
at_list$attr <- tolower(at_list$attr)
vattribute<-at_list$attr
#loading sentences to be checked
posText <- read.delim(file='C:/*****/Sentenc.txt', header=FALSE, stringsAsFactors=FALSE)
posText <- unlist(lapply(posText, function(x) { str_split(x, "\n") }))
test<-vattribute
test1 <- unlist(strsplit(posText,split="\\.<file:///\\.>"))
# test1 <- strsplit(posText,".",fixed=TRUE)[[1]]
#test2<- test1[match(test1,test)]
test2<-test1[grep(paste(test, collapse="|"),test1)]
score <- c(test,test2)
#add row
newrow <- c(test1, score)
final_scores <- rbind(newrow)
final_scores
result<-as.data.frame(final_scores)
write.table(result, "C:/******/otput.txt", sep="\t")
On Wed, Mar 2, 2016 at 12:33 PM, PIKAL Petr <petr.pikal at precheza.cz<mailto:petr.pikal at precheza.cz>> wrote:
Well, so again, my first answer was maybe too elaborated.
0. Send your replies also to help list.
1. Do not post in HTML.
2. Send some data by using output from
dput(yourobject)
3. Prepare desired output and again show it by dput(yourresult)
I still do not understand your desired output. In first sequence you dropped words „He is“ and „he“, in second „word“ and „can be“
Did you check?
4. Check if
?strsplit together with ?"%in%" can be of some help.
test <- "he is smart and fast in his work"
> test
[1] "he is smart and fast in his work"
> unlist(strsplit(test, " "))
[1] "he" "is" "smart" "and" "fast" "in" "his" "work"
unlist(strsplit(test, " ")) %in% "smart"
[1] FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE
If the above does not work for you, you need to evaluate regular expressions.
See e.g.
?gsub
Cheers
Petr
From: deepak aggarwal [mailto:talk4deepak at gmail.com<mailto:talk4deepak at gmail.com>]
Sent: Tuesday, March 01, 2016 5:06 PM
To: PIKAL Petr
Subject: Re: [R] Help in R code
Sentence
Words
word string
1
he is a nice human being.he has great talent of singing
human,talent
a nice human being .,has great talent of singing
2
Word is having environmental issues which can be solved at local level nw
environmental,local
is having environmental issues which,solved at local level nw
sentence column has 1000 sentences and words have some selected words already written
now i want r code using which i can get word string in such a way that first human is searched in sentence 1 and then 2 words before human and 2 words after human will be writen in word string next it will search word talent and add it to word string
so in nutsheel for every word in words column it will fetch 2 words before and 2 words after where match is found.
Seeking your help on this.
Regards
Deepak
On Tue, Mar 1, 2016 at 8:41 PM, PIKAL Petr <petr.pikal at precheza.cz<mailto:petr.pikal at precheza.cz>> wrote:
Hi
See in line
> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org<mailto:r-help-bounces at r-project.org>] On Behalf Of deepak
> aggarwal
> Sent: Tuesday, March 01, 2016 1:30 PM
> To: r-help at r-project.org<mailto:r-help at r-project.org>
> Subject: [R] Help in R code
>
> Hi ,
>
> Seeking your help in coding following requirement in R.
>
> Vector 1 has sentences for ex. vector 1="he is a nice human being","he
> is smart and fast in his work"
>
> vector 2 has keywords found in each sentence seperated by comma for
> ex. vector2 for vector 1 =nice,being vector 2 for vector 1 =smart,work
>
> I want output to be vector 3 which will show 2 words before and after
> where match is found
>
> vector 1 vector2 vector 3
> he is a nice human being nice,being is a nice
> human,human being
> he is smart and fast in his work smart,work he is smart,in his
> work
>
> in all i want vector 3 to how 2 words before and aftr to each word of
> vector 2 from vector 1.
>
> really appriciate your quick help on this.
OK. Some very quick help:
1. Do not post in HTML, your mail is barely readable.
2. Send some data by using output from
dput(yourobject)
3. Instead of vaguely explaining what you want to do, prepare desired output and again show it by dput(yourresult)
4. Check if
?strsplit together with ?"%in%" can be of some help.
test <- "he is smart and fast in his work"
> test
[1] "he is smart and fast in his work"
> unlist(strsplit(test, " "))
[1] "he" "is" "smart" "and" "fast" "in" "his" "work"
unlist(strsplit(test, " ")) %in% "smart"
[1] FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE
Cheers
Petr
>
> Thanks & Regards
> Deepak
>
> [[alternative HTML version deleted]]
>
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