how can i execute a function from a R script via Rserve from golang using Roger...
If a function requires no arguments or just one argument, it works fine.. The problem comes when the function take two arguments.
Golang
//using backticks works fine too
param := "'hello'"
param2 := "'World'"
jsonx, err := rClient.Eval("parse(as.character(" + param + "," + param2 "))")
if err != nil {
s := fmt.Sprintf("%s %s", "Error occured : ", err.Error())
log.Println(s)
return
}
R script
//simple
parse <- function(xx, nx) {
print(xx)
print(nx)
return(nx)
}
the first parameter is assigned hello but the second give an error that no default is set from the Rserve side.. How can i call a function that requires two or more parameters from golang
Change:
jsonx, err := rClient.Eval("parse(as.character(" + param + "," + param2 "))")
To:
jsonx, err := rClient.Eval("parse(as.character(" + param + "),as.character(" + param2 + "))")
For anyone like myself getting into R and integrating with Go, it can be a bit daunting. So I hope this helps someone.