flow variable inserting to R view

Hello all,
When I am trying to draw venn diagram of chemical structures from two datasets, I cannot get rid of missing values(object missing) . Appending columns in a table results in missing values since datasets do not have same sizes. And missing value node does not solve the problem of string or structure based missing values.

Or alternatively, how can I add flow variables to my R view to code venn diagram vector from two datasets since it allows only one input port?

@tmuhlise welcome to the knime forum. You could check this example how to transfer flow variables to and from R nodes

If you are interested in more examples many also using flow variables you can take a look here:

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