monitor_join should handle all-missing

MazamaScience / PWFSLSmoke

Utilities for working with air quality monitoring data (e.g. federal regulatory monitors)

http://mazamascience.github.io/PWFSLSmoke/

GNU General Public License v3.0

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monitor_join should handle all-missing #100

Open jonathancallahan opened 4 years ago

jonathancallahan commented 4 years ago

I tried to join to ws_monitor objects, one which had a monitorID column with all NA and another which did not have that monitorID column. I got this error:

Error in if (ncol(data) == 1) { : argument is of length zero

The current workaround is to monitor_subset(dropMonitors = TRUE) before joining. But monitor_join() should be able to handle this.