R get specific character from string

string_var = "this is an example"

# substr(string, first_char_pos, last_char_pos) # extracts characters from pos1 to pos2
substr(x, 1, 3)		# Extract first three characters
# "thi"
substr(x, 4, 4)		# Extract only the fourth character
# "s"

n_last <- 3			# Specify number of characters to extract
# nchar(x) counts total no. of characters in the string
substr(x, nchar(x) - n_last + 1, nchar(x)) 	# Extract last three characters
# "ple"

Source: statisticsglobe.com

Similar codes

1 vote155 views1 answer
Find length of a list or vector in r
R
0 vote179 views1 answer
R concaat string and number
R
0 vote146 views1 answer
Null count in r
R
0 vote132 views1 answer
R difference | and ||
R
1 vote151 views1 answer
R convert matrix to list of column vectors
R
3 votes159 views2 answers
Comment in r
R
0 vote165 views1 answer
Two string in one string r
R
0 vote148 views1 answer
Link excel to r
R
0 vote161 views1 answer
Comparing pairs in r
R
0 vote127 views1 answer
Find row with na r
R