[R] problems with SPC charts in R

[Bart Joosen]

It looks like there is an NA created, and then used to calculate stdev.
But it's inside function, and these seems all wrapped functions, where one
function calls another, which calls another, which calls .....
I suggest you contact the maintainer of the package, send him the data and
your error.
To find his e-mail address see ?qcc.
(If you solved your problem, please let us know)


Bart

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