R and Python : 번역

R	Python
search() ls() ls(pos=2)	dir(__builtins__)
help(abs) ?abs	help(abs)
5 %% 2 7 %% 3	5 % 2 7 % 3
increment=function(x) { x+1 }	def increment(x):     return x+1
sent = "I'm feeling good." sent = "I\'m feeling good." sent = 'I\'m feeling good.‘	sent = "I\'m feeling good." sent = "I'm feeling good." sent = 'I\'m feeling good."
print(paste(c("ba",rep("na",2),            "muffin."), collapse=""))	print("ba"+"na"*2+"muffin.")
age=readline("How old are you?") #cat("How old are you?") #age=scan(what=numeric(), nmax=1)	age=input("How old are you?")
comp=function(n) { ifelse(n>100, "More than 100.", ifelse(n>10, "10<n<=100.","n<=10.")) }	def comp(n):     if n>100:         return "More than 100."     elif n>10:         return "More than 10, but equal to or less than 100."     else:         return "Equal to or less than 10.“
grepl('mile','smiles') grepl('smiles','mile')	'mile' in 'smiles' 'smiles' in 'mile'
nchar('Hello')	len('Hello')
s='Call Me Maybe' substring(s, 13, 13)     # in R, index starts from 1 substring(s, nchar(s), nchar(s))   substring(s, 1, 4)   paste(substring(s, 1, nchar(s)-5),"Perhaps",sep="")	s='Call Me Maybe' s[12] s[-1]   s[:4]   s=s[:-5]+'Perhaps' s=s[0:-5]+'Perhaps'
regexpr("function",s)    # s.find("function") length(gregexpr("function",s)[[1]]) # s.count("function") tolower(s)	s.find("function") s.count("function") s.lower()
for (vowel in c('a','e','i','o','u')) { print(vowel) }	for vowel in 'aeiou':     print(vowel)
num=6 while (num>0) { print(num); num=num-1 }	num=6 while num>0:     print(num)     num=num-1
temperature = list(18, 20, 22.5, 24) temperature[[4]] temperature[4]	temperature = [18, 20, 22.5, 24] temperature[3] temperature[3:]
length(list("math")) nchar("math")	len(["math"]) len("math")
grades=list(80, 90, 70) grades <- c(grades, 3) #grades[[length(grades)+1]] = 3 grades[[length(grades)]]; grades[[length(grades)]]=NULL grades2=list(99, 77); append(grades, grades2) grades[grades == 70] = NULL	grades=[80, 90, 70] grades.append(3) grades.pop() grades.extend([99,77]) grades.remove(70)
grades=list(80,70,60,90) grades=as.list(sort(unlist(grades)))	grades.sort()
seq(1,10,2)     # range(1,10,2) lst=list(1,2,3) seq(lst)         # range(len(lst))	range(1,10,2) lst=[1, 2, 3] range(len(lst))
lst=list(list(10,20),list(15),list(40,22)) total=0 for (sublist in lst) { for (num in sublist) total=total+num }	lst=[[10,20],[15],[40,22]] total=0 for sublist in lst:         for num in sublist:                 total=total+num
cat_string = readLines("cat.txt") cat_string = paste(cat_string, collapse="\n")	cat_file = open("cat.txt", "r") cat_string= cat_file.read()
getwd()	import os os.getcwd()
setwd("tempDir")	import os os.chdir("tempDir")
	tyImmutableList = (2, 3, 5) tyDict = {'a':1, 2:'b'}