/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 vote191 views1 answer
For R
R
0 vote201 views1 answer
R select column names starting with
R
2 votes208 views1 answer
R count number of na
R
0 vote124 views1 answer
Split strings by space in r
R
1 vote198 views1 answer
R test normality
R
0 vote196 views1 answer
Outlier tagging boxplot r
R
2 votes201 views1 answer
Setwd in r
R
0 vote184 views3 answers
How to remove null values in r
R
1 vote183 views1 answer
Suppress error r
R
1 vote225 views1 answer
R convert list to comma separated string
R