R Output Column Store Error

Hi Community,

We're trying to create an R procedure that returns some error statistics from a prediction that was successfully made from an R model in another script. Unfortunately, when we try to run this procedure, it gives an error:

--

SAP DBTech JDBC: [2048]: column store error: [2048] LIHUA.GET_SUM: line 5 col 1 (at pos 94): GenericFailure exception: column store error: search table error: [34086] Convert data error: Convert Data from R to NewDB failed.;Column 'NAME' not computed from R.

--

The script worked fine when run in R and showed the results in a table, as expected. If I remove the column 'NAME' from the data, it gives the same error about the new first column.

The R code that puts the results into a table is as follows (ER and MSE are R functions defined earlier in the script, line breaks were added for readability):

result<-data.frame(Name=c("ALL","STEP"),

     Interval_Error=c(Inter(pre$PRE_ALL,pre$PRE_ALL_LOWER,pre$PRE_ALL_UPPER),Inter(pre$PRE_STEP,pre$PRE_STEP_LOWER,pre$PRE_STEP_UPPER)),

Tolerance_Error=c(ER(pre$PRE_ALL,pre$SALES,3),ER(pre$PRE_STEP,pre$SALES,3)),

MSE=c(MSE(pre$PRE_ALL,pre$SALES),MSE(pre$PRE_STEP,pre$SALES)))

The table being written to is this format:

DROPTABLE SUMMARY_ERROR;

CREATECOLUMNTABLE SUMMARY_ERROR (

Name VARCHAR,

Interval_Error FLOAT,

Tolerance_Error FLOAT,

MSE FLOAT

);

Has anyone experienced anything similar to this while running R scripts in HANA?

Thanks,

Dave