New Post: R parameter tab is missing in metric editor

That's good news!

Regarding the _InputNames parameter, actually, this particular feature is only needed if you wanted to pass in the actual names of the MicroStrategy metric inputs to use them in your R analytic. While R will get the data associated with a particular metric, that data doesn't come with any details (metadata) about the metric itself, in particular it's name.

In that example, the MicroStrategy metric "Revenue" is passed into the R variable "Trend" -- And if you generated any plots or other output from R that you wanted to deploy to MicroStrategy users, those results from R would show "Trend" as the dependent variable -- since Trend is an R variable it's probably meaningless or confusing to BI Users. By setting the _InputNames parameter to match the input metric names in your metric expression, you could use the MicroStrategy metric names inside R.

Frankly, this is a bit of a special case and I suspect the vast majority users won't need this feature. But it's there in case its needed.

Hope this helps,

Rick