An alternative that does not use the zoo package but uses the built-in
constant month.abb
df1 <- data.frame(Year = c(2021, 2021, 2021),
Mon = c("Mar", "Jan", "Apr"))
df1$mon_year <- df1$Year*100 + sapply(df1$Mon, \(x) match(x,month.abb))
sort(df1$mon_year)
On Wed, May 17, 202
I don't use lubridate, but that package works with Date and POSIXt types, which
I do use. Just remember to include a day when converting (1st of month is
typical), and use an output format to hide the day when you plot.
On May 16, 2023 1:29:27 PM PDT, Jeff Reichman wrote:
>R Help
>
>
>
>I have
Ah the zoo package! I was trying with lubridate package.
-Original Message-
From: Rui Barradas
Sent: Tuesday, May 16, 2023 5:04 PM
To: Jeff Reichman ; r-help@r-project.org
Subject: Re: [R] Recombining Mon and Year values
Às 21:29 de 16/05/2023, Jeff Reichman escreveu:
> R H
Às 21:29 de 16/05/2023, Jeff Reichman escreveu:
R Help
I have a data.frame where I've broken out the year and an ordered
month values. But I need to recombine them so I can graph mon-year in
order but when I recombine I lose the month order and the results are
plotted alphabetical.
There are many ways to do this in various R packages. Search on "Plot
month-year data in R" or the like and choose that which works best for you.
There may be a learning curve involved, naturally.
(Note: you may wish to check out zoo:yearmon and zoo:autoplot first, as
these seem like they might be
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