syntax: cannot juxtapose string literal

[azev77]

The following works:

X = randn(100,5)
y = 7.0 .+ X[:,1] .+ 2.0 .* X[:,2] .* X[:,3] + 3*randn(100)

using RCall
@rput y
@rput X
R"
library(L0Learn)
J = ncol(X); nf = 5; set.seed(1); 
fitL0 = L0Learn.cvfit(X, y, nFolds=nf, seed=1, maxSuppSize=nrow(X)/2,
intercept = T)
"
@rget J
@rget fitL0

But I get an error when I include a kw w/ a string:

R"
library(L0Learn)
J = ncol(X); nf = 5; set.seed(1); 
fitL0 = L0Learn.cvfit(X, y, nFolds=nf, seed=1, maxSuppSize=nrow(X)/2,
intercept = T, algorithm = "CDPSI")
"

It says: syntax: cannot juxtapose string literal

[azev77]

It can be solved w/ triple string quotations:

R"""
library(L0Learn)
J = ncol(X); nf = 5; set.seed(1); 
fitL0 = L0Learn.cvfit(X, y, nFolds=nf, seed=1, maxSuppSize=nrow(X)/2,
intercept = T, algorithm = "CDPSI")
"""