`data[sapply(data, is.nan)] <- NA` is a nice compact command, but I still get NaN when using the summary function, for instance one of the columns give: ``` Min. : NA 1st Qu.: NA Median : NA Mean :NaN 3rd Qu.: NA Max. : NA NA's :110 ``` I tried to implement the second solution but: ``` df <- lapply(x, function(xx) { xx[is.nan(xx)] <- NA }) > str(df) List of 1 $ sd_ef_rash_loc___palm: logi NA ``` What am I getting wrong? Thanks
On Thu, Sep 2, 2021 at 3:30 PM Andrew Simmons <akwsi...@gmail.com> wrote: > > Hello, > > > I would use something like: > > > x <- c(1:5, NaN) |> sample(100, replace = TRUE) |> matrix(10, 10) |> > as.data.frame() > x[] <- lapply(x, function(xx) { > xx[is.nan(xx)] <- NA_real_ > xx > }) > > > This prevents attributes from being changed in 'x', but accomplishes the same > thing as you have above, I hope this helps! > > On Thu, Sep 2, 2021 at 9:19 AM Luigi Marongiu <marongiu.lu...@gmail.com> > wrote: >> >> Hello, >> I have some NaN values in some elements of a dataframe that I would >> like to convert to NA. >> The command `df1$col[is.nan(df1$col)]<-NA` allows to work column-wise. >> Is there an alternative for the global modification at once of all >> instances? >> I have seen from >> https://stackoverflow.com/questions/18142117/how-to-replace-nan-value-with-zero-in-a-huge-data-frame/18143097#18143097 >> that once could use: >> ``` >> >> is.nan.data.frame <- function(x) >> do.call(cbind, lapply(x, is.nan)) >> >> data123[is.nan(data123)] <- 0 >> ``` >> replacing o with NA, but I got >> ``` >> str(df) >> > logi NA >> ``` >> when modifying my dataframe df. >> What would be the correct syntax? >> Thank you >> >> >> >> -- >> Best regards, >> Luigi >> >> ______________________________________________ >> 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. -- Best regards, Luigi ______________________________________________ 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.