[R] How to make our data normally distributed in R
Rui Barradas
ru|pb@rr@d@@ @end|ng |rom @@po@pt
Fri Mar 13 14:08:56 CET 2020
Hello,
Why would it be awkward to show values like 4600? If those are the
values, show them. When there is a large difference, orders of
magnitude, you can plot logs by setting parameter log = "y" as in
boxplot(10^(0:5), log = "y")
But I don't see why to have values in the range 2900-4600 (same order of
magnitude) is a reason to alter ylim.
Hope this helps,
Rui Barradas
Às 22:58 de 12/03/20, Neha gupta escreveu:
> Thanks Hasan and Rui
>
> Rui, as you mentioned
>
> As for the second question, if your RMSE vector had values in the range
> 2900 to 4600 and the y axis limits are c(0, 1), how can you expect to
> see anything?
>
> Then what should be the values of ylim in boxplots? I need to show them
> as boxplot between 0-1 or 1-10, even 10-100 but it will be very awkward
> if the boxplot shows the values of 3500 etc.
>
> Regards
>
>
>
> On Thu, Mar 12, 2020 at 11:51 PM Rui Barradas <ruipbarradas using sapo.pt
> <mailto:ruipbarradas using sapo.pt>> wrote:
>
> Hello,
>
> To rescale data so that their values are between 0 and 1, use this
> function:
>
>
> scale01 <- function(x, na.rm = FALSE){
> (x - min(x, na.rm = na.rm))/(max(x, na.rm = na.rm) - min(x, na.rm =
> na.rm))
> }
>
> x <- c(SVM=3500,
> ANN=4600,
> R.Forest=2900)
>
> scale01(x)
> # SVM ANN R.Forest
> #0.3529412 1.0000000 0.0000000
>
>
> See base R function ?scale for another way of scaling data.
>
> As for the second question, if your RMSE vector had values in the range
> 2900 to 4600 and the y axis limits are c(0, 1), how can you expect to
> see anything?
>
> Hope this helps,
>
> Rui Barradas
>
>
> Às 21:08 de 12/03/20, Neha gupta escreveu:
> > Hi
> >
> > I have a regression based data where I get the RMSE results as:
> >
> > SVM=3500
> > ANN=4600
> > R.Forest=2900
> >
> > I want to know how can I make it so that its values comes as 0-1
> >
> > I plot the boxplot for it to indicate their RMSE values and used,
> > ylim=(0,1), but the boxplot which works for RMSE values like 3500
> etc, but
> > when I use ylim=(0,1), all the boxplots suddenly disappears. What
> should I
> > do for it?
> >
> > Thanks
> >
> > [[alternative HTML version deleted]]
> >
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