I am using the qdap package for polarity analysis. In the CSV file I have a sentence without punctuation like "Sucks to not be removable" (no period).
After using sentsplit on the dataframe, this row is showing NA.
How do I add endmarks to the incomplete sentences in R? Is there a way to stop this?
Many of the qdap functions expect properly formatted/structured data forms. This generally means sentences with endmarks and often only one sentence per row. This is how the algorithms determine what is a sentence. If the sentences are indeed incomplete sentences qdap expects the pipe sign "|" to denote this. So here's an example where detect missing endmarks with end_mark function and then paste a | at the end:
dat <- DATA
dat[1, 4] <- "Sucks to not be removable"
missing <- end_mark(dat[["state"]]) == "_"
dat[["state"]][missing] <- paste0(dat[["state"]][missing], "|")
sentSplit(dat, "state")
## person tot sex adult code state
## 1 sam 1.1 m 0 K1 Sucks to not be removable|
## 2 greg 2.1 m 0 K2 No it's not, it's dumb.
## 3 teacher 3.1 m 1 K3 What should we do?
## 4 sam 4.1 m 0 K4 You liar, it stinks!
## 5 greg 5.1 m 0 K5 I am telling the truth!
## 6 sally 6.1 f 0 K6 How can we be certain?
## 7 greg 7.1 m 0 K7 There is no way.
## 8 sam 8.1 m 0 K8 I distrust you.
## 9 sally 9.1 f 0 K9 What are you talking about?
## 10 researcher 10.1 f 1 K10 Shall we move on?
## 11 researcher 10.2 f 1 K10 Good then.
## 12 greg 11.1 m 0 K11 I'm hungry.
## 13 greg 11.2 m 0 K11 Let's eat.
## 14 greg 11.3 m 0 K11 You already?
Incidentally, the dev version of qdap (version >= 2.1.1) contains a new line of data formatting functions including check_text to automatically check for potential formatting issues and print a report that gives the location of potential problems and possible fixes.