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I have to find 3 to 5 hottest days in a R dataset that goes for a few months.

The dataset is called AAA and I have column 1 the TIMESTAMP with the dates and column 3 the TAir_Avg took every minute.

Once I do this step, I have to find the hottest leaf temperatures off the 10 columns (thermocouples) that we have installed. HELP!

Tried this. I am using lubridate package, but I don't even know how it works.

AAA[,"DoY"] <- format.Date(AAA[,"TIMESTAMP"], format="%j") 

MaxTemps <- aggregate(AAA[,"TAir_Avg"], by=list(AAA[,"DoY"]), FUN=max)
I_O
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user22027606
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    What does `AAA[['DoY']]` look like? I'm assuming `AAA` is a data frame? Please produce a [minimal, reproducible example](https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example) to help us help you. – Captain Hat Jun 06 '23 at 08:51

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