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qcc package
2 messages · Steven LeBlanc, Uwe Ligges
On 08.02.2013 23:37, Steven LeBlanc wrote:
Greets, My data looks like:
p3.18
s xbar subgroup 1 0.84 12.2 1 2 1.64 11.2 2 3 2.07 10.6 3 4 2.49 12.2 4 5 0.84 11.2 5 ... Using the command
qcc(p3.18$xbar,type="xbar",sizes=5,center=mean(p3.18$xbar),std.dev=mean(p3.18$s)/0.94,title="X-bar Chart for Paper Sheet Length Data")
I get the x-bar chart I expect. However, using the command
qcc(p3.18$s,type="S",sizes=5,center=mean(p3.18$s),std.dev=mean(p3.18$s)/0.94,title="S Chart for Paper Sheet Length Data")
I get the following error: Error in plot.window(...) : need finite 'ylim' values
>
It seems reasonable that if the first command produces correct results, so should the second. What am I doing wrong?
Watch out for NA, NaN, Inf or -Inf values in p3.18$s ? Uwe Ligges
Thanks & Best Regards, Steven [[alternative HTML version deleted]]
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