I want to deploy a basic trained R model as a webservice to AzureML. Similar to what is done here: http://www.r-bloggers.com/deploying-a-car-price-model-using-r-and-azureml/
Since that post the publishWebService function in the R AzureML package was has changed it now requires me to have a workspace object as the first parameter thus my R code looks as follows:
library(MASS)
library(AzureML)
PredictionModel = lm( medv ~ lstat , data = Boston )
PricePredFunktion = function(percent)
{return(predict(PredictionModel, data.frame(lstat =percent)))}
myWsID = "<my Workspace ID>"
myAuth = "<my Authorization code"
ws = workspace(myWsID, myAuth, api_endpoint = "https://studio.azureml.net/", .validate = TRUE)
# publish the R function to AzureML
PricePredService = publishWebService(
ws,
"PricePredFunktion",
"PricePredOnline",
list("lstat" = "float"),
list("mdev" = "float"),
myWsID,
myAuth
)
But every time I execute the code I get the following error:
Error in publishWebService(ws, "PricePredFunktion", "PricePredOnline", :
Requires external zip utility. Please install zip, ensure it's on your path and try again.
I tried installing programs that handle zip files (like 7zip) on my machine as well as calling the utils library in R which allows R to directly interact with zip files. But I couldn't get rid of the error.
I also found the R package code that is throwing the error, it is on line 154 on this page: https://github.com/RevolutionAnalytics/AzureML/blob/master/R/internal.R
but it didn't help me in figuring out what to do.
