[acs-r] Sort acs object before plotting?

[Ezra Haber Glenn]

Great question.  The trick would be to use order() as an index vector
inside square brackets.  So if my.data is a acs object and you want to
plot the first column, an unsorted plot would be:

> plot(my.data[,1])

and a sorted plot might be

> plot(my.data[order(estimate(my.data[,1])),1])

should do the trick.

If you're doing a bunch of this sort of thing, or maybe if you want to
plot one column based on the order of another (say, the percentage of
commuters in a tract, by order of the median HH income of the tracts),
you could save the indices:

> my.index=order(estimate(my.data[,1]))
> plot(my.data[my.index, 1])

--Ezra

On Tue, 25 Oct 2016 11:31:07 -0400, Tiernan Martin wrote:
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> I love the plotting method that the acs package implements, but if an acs object has many
> records the resulting graph can be difficult to understand (see below).
> 
> acs-grap
> 
> Is there a good way for arranging the records so that the graph shows them in ascending
> order? My efforts to use `sort()` and `dplyr::arrange()` have all resulted in errors.
> 
> Thanks,
> 
> Tiernan
> 
> 
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--
Ezra Haber Glenn, AICP
Department of Urban Studies and Planning
Massachusetts Institute of Technology
77 Massachusetts Ave., Room 7-346
Cambridge, MA 02139
eglenn at mit.edu 
http://dusp.mit.edu/faculty/ezra-glenn | http://eglenn.scripts.mit.edu/citystate/
617.253.2024 (w)
617.721.7131 (c)