ALTER POPULATION not available in Loom

[versar]

ALTER POPULATION not available in Loom

[fsaad]

The Loom backend does not have support for incremental updates such as adding/remove new rows or new variables. Trying to use ALTER POPULATION ... ADD VARIABLE ... causes a NotImplementedError to be thrown.

The reason that interactive_pairplot needs a population is to infer the stattypes. In terms of the plotting workflow you described for plotting one option is to create a new table and population that include the new column.

A second option is for us to extend the command line interface of interactive_pairplot so that it can take additional stattypes directly from the user.

(As for the Jupyter error message, it is capturing the stack trace from the NotImplementedError that was raised and is trying to print a succinct error message, although the error that is raised does not have custom message so you just see a pink output bar with no message.)