r - tabplot visualization pkg: what is the left-side 0 -100% vertical axis? -

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using "tabplot" pkg. simple iris data set example:

**#load required packages** require(ggplot2) require(tabplot) **# import data set** data(iris)  **# make plot** tableplot(iris, sortcol="species")

so, q:
vertical scale (0% 100%)
on left-side of plot, represent?
mean?

i searched in vain clear explanation in plain english, (for tin-head me).

would care explain in clear, "everyday" terms simple iris example?
thanks!!

the vertical scale on left of tableplot represents percentage of whole data set sortcol factor displays. iris data set, each species numbers 50, each species accounts one-third of total 100%.

with diamonds data set, if sortcol set carets, plot bins data set carets, showing aggregate of 539 per bin, , shows on vertical, y-axis, percentage of diamonds fall each of 100 bins.


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