[R] Unable to run smoother in qplot() or ggplot() - complains about knots
Christopher David Desjardins
cddesjardins at gmail.com
Fri Mar 13 19:40:27 CET 2009
Thanks for the reply. I'll look into this.
On Mar 13, 2009, at 8:31 AM, hadley wickham wrote:
> On Thu, Mar 12, 2009 at 5:37 PM, Christopher David Desjardins
> <cddesjardins at gmail.com> wrote:
>> I get the following error when I run qplot()
>> qplot(grade, read,data = hhm.long.m, geom = c("point", "smooth"))
>> Error in smooth.construct.cr.smooth.spec(object, data, knots) :
>> x has insufficient unique values to support 10 knots: reduce k.
>> I am not sure how to tackle this problem. When I take a subsample
>> (< 1000)
>> than I am able to run that function but with my sample of ~ 40,000
>> gives me that error. I have 6 grades.
> You have 6 values on the x-axis? Maybe you want to just calculate the
> mean at each grade. If so, see
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