New data-frame feature: missing values

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Steve Nunez

May 22, 2021, 4:29:29 AM5/22/21

Greetings all,


Just thought I’d mention that I recently added functionality for dealing with missing values to the data-frames library. It’s modelled mostly after R, so should be familiar. I like how the new data frame access methods are shaping up. Very lisp-like in the large. The docs are here:


in the end I went with a keyword sentinel value, :na, because using nil precluded having data-frames of Boolean values.


Comments and feedback always welcome.



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