r - Filter text/tweet column with keywords

Question

I downloaded a timeline and have now a dataframe with 3200 observations of 1 variable (tweets). I want to filter my dataframe using certain keywords but don't get the expected results. Any help is most appreciated.

I tried this function, for example

filter(data.frame, grepl('keyword',text))

and I get one tweet matching my keyword but I know that there are more.

Answer 1

This worked for me

data<-read.csv("yourdata.csv")
filter <- grep("keyword1|keyword2|keyword3", data$text, ignore.case=TRUE)
Tweets_filtered <- data[filter,]