Your data frame fam contains factors. Turn it into character strings using fam$Family = as.character(fam$Family)
and try again. It may be helpful if you read up on R's factors, see ?factor. HTH, Peter On Tue, Nov 21, 2017 at 2:14 PM, Glen Forister <gforis...@gmail.com> wrote: > This is a simple problem, but a mystery to me. > I'm trying to grab $Family "Scelionidae" from one dataframe and put it into > another dataframe occupied with NA in $Family. The result is a "158" ends > up there instead of Scelionidae. > Simply put fam$Family[1] <- least$Family[1] > > If I have made a mistake here, can somebody point it out. I've included > the simple steps I got there showing the structure and heads of the objects. > ===== add a col of NA = Family >> least$Family <- NA; str(least) > 'data.frame': 243 obs. of 6 variables: > $ sp : int 1 3 5 6 8 11 13 15 18 19 ... > $ Fallon: int 14 11 109 6 1 44 70 23 4 100 ... > $ Dimen : int 10 13 52 2 1 19 18 0 2 116 ... > $ Farm : int 6 2 3 0 0 2 0 1 2 1 ... > $ Sums : int 30 26 164 8 2 65 88 24 8 217 ... > $ Family: logi NA NA NA NA NA NA ... >>head(least,2) > sp Fallon Dimen Farm Sums Family > 1 1 14 10 6 30 NA > 3 3 11 13 2 26 NA >> >> #next change the property logi to char >> least$Family <- as.character(least$Family) >> str(least) > 'data.frame': 243 obs. of 6 variables: > $ sp : int 1 3 5 6 8 11 13 15 18 19 ... > $ Fallon: int 14 11 109 6 1 44 70 23 4 100 ... > $ Dimen : int 10 13 52 2 1 19 18 0 2 116 ... > $ Farm : int 6 2 3 0 0 2 0 1 2 1 ... > $ Sums : int 30 26 164 8 2 65 88 24 8 217 ... > $ Family: chr NA NA NA NA ... >># This is where I will grab the info to put into the above. >> head(fam,2) > Family Sp > 1 Scelionidae 1 > 2 Aphid 2 >># This shows the id of my object I want to copy >> fam$Family[1] > [1] Scelionidae > 180 Levels: ? ? = 97 ? immature ? sp sample ?? ???? 1 2 3 ... wolf? >> >># This shows me copying Scelionidae into dataframe least >> least$Family[1] <- fam$Family[1] >> >># Here is where I don't get what I expect, but 158 >>str(least); > 'data.frame': 243 obs. of 6 variables: > $ sp : int 1 3 5 6 8 11 13 15 18 19 ... > $ Fallon: int 14 11 109 6 1 44 70 23 4 100 ... > $ Dimen : int 10 13 52 2 1 19 18 0 2 116 ... > $ Farm : int 6 2 3 0 0 2 0 1 2 1 ... > $ Sums : int 30 26 164 8 2 65 88 24 8 217 ... > $ Family: chr "158" NA NA NA ... >>head(least, 1) > sp Fallon Dimen Farm Sums Family > 1 1 14 10 6 30 158 >> >># Showing what I wanted to copy still exists. >> fam$Family[1] > [1] Scelionidae > 180 Levels: ? ? = 97 ? immature ? sp sample ?? ???? 1 2 3 ... wolf? > > [[alternative HTML version deleted]] > > ______________________________________________ > 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 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.
