Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
939 views
in Technique[技术] by (71.8m points)

r - How to convert characters into ASCII code?

I need to translate a string of characters, for example "Hello", into a string of numbers which is the ASCII numeric codes.

Example: 0 -> 48; a -> 97, etc.

Does anyone know an R function to do this? Hopefully, the function or piece of code will translate "Hello" into a numeric string like

c(72, 101, 108, 108, 111)
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

I guess you mean utf8ToInt, see the R manuals:

utf8ToInt("Hello")
# [1]  72 101 108 108 111

Or, if you want a mapping of the letters to their codes:

sapply(strsplit("Hello", NULL)[[1L]], utf8ToInt)
#  H   e   l   l   o 
# 72 101 108 108 111 

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

1.4m articles

1.4m replys

5 comments

56.9k users

...