CODEWITHSUNDEEP
razure-machine-learning-service
mkiesner
mkiesner

Reputation: 695

Multiple Inputs/Outputs from Execute R Script

Assume I have an Execute R Script that calculates multiple variables, say X and Y. Is it possible to save X as a dataset ds_X and Y as a dataset ds_Y?

The problem is that there is only 1 output port available that needs to be mapped to a data.frame. Am I missing an option to add more output ports? Same problem for input ports. I may connect 2 of the "Enter Data Manually" modules to it, but what if I need 3? The current workaround is to put CSV files in a ZIP file and connect that. Are there easier solution?

Example of what i tried:

I tried adding ds_X and ds_Y to a list. The idea is to pass this list to multiple "Execute R Script" modules and use the required list elements there. Mapping a list to an output port does not seem to work though:

# Calculate lots of stuff - results are ds_X and ds_Y
ds_X <- mtcars
ds_Y <- cars
out <- list(ds_X, ds_Y)

maml.mapOutputPort("out")

results in an error:

Error: Mapped variable must be of class type data.frame at this time.

Upvotes: 0

Views: 794

Answers (1)

Jaya Mathew
Jaya Mathew

Reputation: 61

You can author custom R Modules.

Here is some documentation: https://blogs.technet.microsoft.com/machinelearning/2015/04/23/build-your-own-r-modules-in-azure-ml/ https://learn.microsoft.com/en-us/azure/machine-learning/machine-learning-custom-r-modules

Upvotes: 1

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