R code, working, defined Functs

import numpy as np
np.__version__
'1.11.3'
%load_ext rpy2.ipython
%R -o var var = 5
array([ 5.])
print(var)
[ 5.]
%R
var=var*5
var
array([ 25.])
print(var)
[ 5.]

==

input_arg_name=2
%R -i input_arg_name -o output_arg_name output_arg_name= input_arg_name^4
print(output_arg_name)
[ 16.]


def r_func(input_arg):
    %R -i input_arg -o output_arg output_arg=input_arg^4
    return output_arg[0]
r_func(4)

256.0

==

%%R
sum_vect <- function(a) {
    b <- 0
    for(i in 1:a){
        b<-b+i^2
    }
    b
}
%R -o out out=sum_vect(3)
print(out[0])

14.0


def sum_vector_in_r(arg):
    %R -i arg -o out out=sum_vect(arg)
    return out[0]