[R] Grouping Question

Ivan Krylov kry|ov@r00t @end|ng |rom gm@||@com
Sun Mar 22 07:24:15 CET 2020

On Sat, 21 Mar 2020 20:01:30 -0700
Thomas Subia via R-help <r-help using r-project.org> wrote:

> Serial_test is a pass, when all of the Meas_test are pass for a given
> serial. Else Serial_test is a fail.

Use by/tapply in base R or dplyr::group_by if you prefer tidyverse

Best regards,

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