[R] A simple string alienation problem

[Eric Berger]

Hi Sam,
My code below adds new columns to your data frame so you have the original
columns in order to compare.
(Also this could help in case there are a few rows that don't work in the
full set.)

> x <- read.csv("Fight.csv", stringsAsFactors = F, header = F)
>  x$V3 <- sub("\\\"","",x$V1)  # remove the "
> iV <- grep("/",x$V3)  # get the indices of the rows that have / in the
name
> x$V4 <- x$V2  # or rep(NA,nrow(x))
> x$V4[iV] <- sub(".*/","",x$V3[iV])  # remove up-to-and-including the /
> x$V3[iV] <- sub("/.*","",x$V3[iV])  # remove from the / and beyond
> x

HTH,
Eric




On Tue, Apr 14, 2020 at 1:55 PM Soumyadip Bhattacharyya <
s.b.sam2801 using gmail.com> wrote:

> ***Dear Eric,*****
> sending from gmail following the way you suggested. Hope now everyone
> can see this email. **** I have also attached the first 50 rows of the
> FIght.csv.***
> ***Output - I will try to do Market basket analysis on this to find
> out rules that I am learning. so once I have the data in transactional
> format - then I can run the algorithm and keep learning. This little
> problem has caused a barrier in my path - I can alienate the string in
> excel - but wanted to do in R - so researching I tried doing this:
> x<- substr(x, 1, nchar(x) - 1)  // but I wasn't successful and I tried
> many other things - its not coming in the transactional format. ***
> Hence now reached out to the experts.**** Many Thanks.
>
> Hello Dear R Community,
>
> I would ask a little bit of help from you please:I have a dataset,
> which is in a CSV file – I have read it into R as follows:
>
>       V1
> tropical fruit"
> whole milk"
> pip fruit"
> other vegetables"
> whole milk"
> rolls/buns"
>
> The issue is: the data set in csv file also appears with the quotation
> marks “. I can’t get rid of the quotation marks. I want to do it in R.
> The Quotes only appear at the end of the string. The dataset has many
> rows – this is just a copy. My intention is to be able to get rid of
> the quotes and then want to separate the strings with a ‘/’. i.e.
> rolls/buns should be rolls in one column and buns in another.
>
> I know this is something very simple I am lacking – but if you could
> please show me how to do this? If someone could throw some light
> please. I read the data in with a simple read.csv statement:
>
> > x <- read.csv("Fight.csv", stringsAsFactors = F, header = F)
> > str(x)
> Output:
> > str(calc)
> 'data.frame':   38765 obs. of  1 variable:
> $ V1: chr  "tropical fruit\"" "whole milk\"" "pip fruit\"" "other
> vegetables\"" ...
>
> Many Thanks in advance for your help.
> Kind Regards,
> Sam.
>

	[[alternative HTML version deleted]]