/R/Count certain number of alphabets in a string r

Count certain number of alphabets in a string r

# Load your example data
q.data<-data.frame(number=1:3, string=c("greatgreat", "magic", "not"), stringsAsFactors = F)
library(stringr)

# Count the number of 'a's in each element of string
q.data$number.of.a <- str_count(q.data$string, "a")
q.data
#  number     string number.of.a
#1      1 greatgreat           2
#2      2      magic           1
#3      3        not           0

Similar codes

0 vote269 views1 answer
Add another 'color' condition to jitter with ggboxplot
R
2 votes221 views2 answers
How to iterate through a list in r
R
0 vote242 views2 answers
Count r
R
3 votes212 views2 answers
Find average in r
R
0 vote235 views1 answer
Rmarkdown put date
R
1 vote239 views1 answer
Make a sequence of timeseries per day in r
R
0 vote223 views1 answer
How to summarise data but keep columns R
R
0 vote216 views1 answer
Error installing devtools r
R
0 vote234 views1 answer
Base R change axis line width
R
0 vote219 views1 answer
Comparing pairs in r
R