Rui
Your first code worked just fine.
Jeff
-----Original Message-----
From: Rui Barradas <ruipbarra...@sapo.pt>
Sent: Saturday, May 26, 2018 8:30 AM
To: reichm...@sbcglobal.net; 'R-help' <r-help@r-project.org>
Subject: Re: [R] Grouping by 3 variable and renaming groups
Hello,
Sorry, but I think my first answer is wrong.
You probably want something along the lines of
sp <- split(priceStore_Grps, priceStore_Grps$StorePC) res <-
lapply(seq_along(sp), function(i){
sp[[i]]$StoreID <- paste("Store", i, sep = "_")
sp[[i]]
})
res <- do.call(rbind, res)
row.names(res) <- NULL
Hope this helps,
Rui Barradas
On 5/26/2018 2:22 PM, Rui Barradas wrote:
> Hello,
>
> See if this is it:
>
> priceStore_Grps$StoreID <- paste("Store",
> seq_len(nrow(priceStore_Grps)), sep = "_")
>
>
> Hope this helps,
>
> Rui Barradas
>
> On 5/26/2018 2:03 PM, Jeff Reichman wrote:
>> ALCON
>>
>>
>> I'm trying to figure out how to rename groups in a data frame after
>> groups by selected variabels. I am using the dplyr library to group
>> my data by 3 variables as follows
>>
>>
>> # group by lat (StoreX)/long (StoreY)
>>
>> priceStore <- LapTopSales[,c(4,5,15,16)]
>>
>> priceStore <- priceStore[complete.cases(priceStore), ] # keep only
>> non NA records
>>
>> priceStore_Grps <- priceStore %>%
>>
>> group_by(StorePC, StoreX, StoreY) %>%
>>
>> summarize(meanPrice=(mean(RetailPrice)))
>>
>>
>> which results in .
>>
>>
>>> priceStore_Grps
>>
>> # A tibble: 15 x 4
>>
>> # Groups: StorePC, StoreX [?]
>>
>> StorePC StoreX StoreY meanPrice
>>
>> <fct> <int> <int> <dbl>
>>
>> 1 CR7 8LE 532714 168302 472.
>>
>> 2 E2 0RY 535652 182961 520.
>>
>> 3 E7 8NW 541428 184515 467.
>>
>> 4 KT2 5AU 517917 170243 522.
>>
>> 5 N17 6QA 533788 189994 523.
>>
>>
>> Which is fine, but I then want to give each group (e.g. CR7 8LE
>> 532714
>> 168302) a unique identifier (say) Store 1, 2, 3 or some other unique
>> identifier.
>>
>>
>> StorePC StoreX StoreY meanPrice
>>
>> <fct> <int> <int> <dbl>
>>
>> 1 CR7 8LE 532714 168302 472. Store 1
>>
>> 2 E2 0RY 535652 182961 520. Store 2
>>
>> 3 E7 8NW 541428 184515 467. Store 3
>>
>> 4 KT2 5AU 517917 170243 522. Store 4
>>
>> 5 N17 6QA 533788 189994 523. Store 5
>>
>>
>>
>> [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
> ______________________________________________
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
