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2010 Feb 04
6
problems with SPC charts in R
Hi all,
I am using SPC techniques of plotting Xbar, R, S, P and C charts in R.For
this I am using qcc package in R and also using the following document for
reference.
http://www.stat.unipg.it/~luca/Rnews_2004-1-pag11-17.pdf
But while plotting S chart, R chartchart and also C chart I am getting
following errors.
I have plotted the Xbar chart successfully using following command
obj <-