R step without input possible?
I want to run a R script that generates some data. The data will be coming from a RDS file (https://www.rdocumentation.org/packages/base/versions/3.5.3/topics/readRDS).
So there is no input step to configure. The first step in the transformation flow is an R script. I do want to write the data to the writable YellowFin database and then report on it but I am not getting that far.
I have Rserve running on localhost and the connection is ok. I have set the path to the correct (and working) R file. Then I set the return field method to append (no input data) and the correct number of columns (9). The input variable name I leave blank and in the output variable name I define outData and that is also the data.frame name the script is returning.
Running it (Apply) gives met 9 fields (Field 0 ... to ... Field 8) but no data.
In the Error tab it says "This step has fields that are not linked to an input."
Is it possible to run a R Script without any input data?