In victoria-ramirez/expanded_slf: Maps presence/absence of Lycorma delicatula in the US

TO BE added to vignettes/ upon completion.

It would be good to add to the package a vignette that explains common processes in data reading and the reational behind it.

For instance, the vignette 011_Tidy_State_data.Rmd describes why using parsedate::parse_date over lubridate::ymd_hms is convenient in our case. It might be good to keep a manual here that details why these choices are made, and what the potential shortcomings are.

For now, I'll note here what this vignette should be populated with.

Reading dates: lubridate::ymd vs parsedate::parse_date

*Copied from 011_Tidy_State_data.Rmd.

There are a few options for parsing the dates. A common option is to use lubridate::ymd_hms (or similar) considering we are potentially merging different datasets, it might be good to have a function that is more flexible. If, for instance, some entries are missing the seconds, or even have a different order in y/m/d, those rows might be skipped completely. The function parsedate::parse_date (note, this is different from readr::parse_date) is extremely flexible with regard to the date format. Which is why we prefer it.

library(readr)
library(parsedate)
mix_dates <- c("2015-12-25 19:06", "01/31/2017 07:01 PM", "01/31/2017 07:01", "01/31/2017 07:01:45")
parsedate::parse_date(mix_dates)
readr::parse_date(mix_dates)

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victoria-ramirez/expanded_slf documentation built on July 1, 2020, 12:15 a.m.