strtoi()发挥作用:R语言用于将指定的字符串转换为整数。
语法:strtoi(x, base = 0L)参数:x:字符向量base:2到36之间的整数(含2和36), 默认为0
范例1:
# R program to illustrate
# strtoi function
# Initializing some string vector
x < - c( "A" , "B" , "C" )
y < - c( "1" , "2" , "3" )
# Calling strtoi() function
strtoi(x, 16L )
strtoi(y)
输出:
[1] 10 11 12
[1] 1 2 3
范例2:
# R program to illustrate
# strtoi function
# Calling strtoi() function over
# some specified strings
strtoi(c( "0xff" , "023" , "567" ))
strtoi(c( "ffff" , "FFFF" ), 16L )
strtoi(c( "246" , "135" ), 8L )
输出如下:
[1] 255 19 567
[1] 65535 65535
[1] 166 93