Multiple warnings for ggplot

[Mahmood Naderan]

Hi

For the following command

ggplot(mydata, aes(x = BEN))

+ geom_violin(aes(y = L1, weight = WG), trim = FALSE)
+ geom_dotplot(binaxis='y', stackdir='center', dotsize=0.6)

+ ylim(0, 100)

I get some warning as below

`stat_bindot()` using `bins = 30`. Pick better value with `binwidth`.
Warning messages:
1: In max(f) : no non-missing arguments to max; returning -Inf
2: Computation failed in `stat_bindot()`:
argument must be coercible to non-negative integer
3: Removed 529 rows containing missing values (geom_violin).

Don't know if they have side effects on the generated chart. Specially, the third item talks about removing some rows. While my csv file has about 70 rows, I wonder what is that 529 rows.

Any thought on that?

Regards,

Mahmood

[Ron Crump]

Hi Mahmood,

Without a reproducible example, or your data, it's a bit tricky to
diagnose what might be wrong.

I suggest that you could start by seeing what happens when you do
the two plots (ie with either geom_violin or geom_dotplot) separately,
without the ylim.

I haven't used geom_dotplot, and it looks like the error probably
relates to that, so I'd then play around until I had geom_dotplot doing
what I wanted before trying to combine it with geom_violin. (And I'm
struggling to think how the two plots go together, won't one of the axes
have conflicting scales?).

Best wishes,
Ron.

[Mahmood Naderan]

Thanks for the hint. In fact when I remove

    ylim(0, 100)

The warning

    Removed 529 rows containing missing values (geom_violin)

Is disappeared. I guess the warning is saying that some values in the kernel density are outside of the range (0,100) and hence they are not shown. I am not sure though...

Regards,
Mahmood

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