xrs_gr: Calculate and plot the X, R and S Charts for variable charts

In XRSCC: Statistical Quality Control Simulation

Description

Calculates the control limits for X, R and S charts, using a data frame with a fixed subgroup size. Plots the corresponding graph, the function estimates if any value is out of the control limits, returns a list with calculations.

Usage

xrs_gr(X)

Arguments

X	A sample in a dataframe object, with m rows like subgroups, and n columns like sample size.

Value

in.control	The under control row list for the X chart
R.in.control	The under control row list for the R chart
out.control	The out of control row list for the X chart
Iteraciones	The iterations number, the firts and the last one on this function
data.0	The original data frame
data.1	The under control subset after iteration
data.r.1	The calculated ranges of data.0
bin	The binary values for out of control equal to one and under control equal to zero, for X, R and S charts
LX	The X chart control limits vector
LR	The R chart control limits vector
LS	The S chart control limits vector
Limites Grafixa X	The X chart control limits vector
Limites Grafixa R	The R chart control limits vector
Limites Grafixa S	The S chart control limits vector
Conclusion del proceso	The same results in a phrase as the bin values

Author(s)

Erick Marroquin

References

Montgomery, D.C. (2005) Introduction to Statistical Quality Control, 5th ed. New York: John Wiley & Sons, ISBN 0-471-65631-3

See Also

X_it, we_rules, R_it, Cp_X, Beta.X

Examples

data(vol_sample)
results1<-xrs_gr(vol_sample)

Example output

[1] "Proceso fuera de Control en Grafica X"
[1] "El proceso esta bajo control en Grafica R"
[1] "El proceso esta bajo control en Grafica S"

XRSCC documentation built on May 2, 2019, 5:11 a.m.