[R] How to create a readable plot in R with 10000+ values in a dataframe

[Martin Maechler]

>>>>> Ritwik Mohapatra 
>>>>>     on Thu, 23 Jul 2020 23:41:57 +0530 writes:

    > How to create a readable and legible plot in R with 10k+ values.I have a
    > dataframe with 17298 records.There are two columns:Machine Name(Character)
    > and Region(Character).So i want to create a readable plot with region in x
    > axis and machine name in y axis.How do i do that using ggplot or any other
    > way.Please help.

Good answers to this question will depend very much on how many
'Machine' and 'Region' levels there are.

(and this is a case where in my opinion it'd be *MUCH* more
 useful to have 'factor' instead of 'character'.. if only just
 so
 	 str(<data>)
or   summary(<data>)

would give useful/relevant information.

--
One possibility for a somewhat cute plot is a  "good ole"
sunflower plot (base graphics, but the idea must be easily
transferable to grid-based graphics such as ggplot2):

  help(sunflowerplot)


Martin Maechler
ETH Zurich