Calculates the c control chart for attributes, using a sample C of number of nonconformities. The plotted values in graph are the nonconformities number on each sample at a regular time interval when there is not a standard given.
Usage
c_gr(C)
Value
in.control
The under control row list for the c chart
out.control
The out of control row list for the c chart
Iteraciones
The number of iterations, in this function always will be the first and the last one
data.0
The original data frame
data.1
Subsetting the data frame with under control rows
bin
The binary values for out of control equal to one, and results under control equal to zero
Limites de Control Grafica c
The c chart control limits vector
Conclusion del proceso
The same results in a phrase as the bin values
Arguments
C
A data frame or a vector containing the number of nonconformities per sample. Note that the variable name must be the uppercase letter, like D.
Author
Erick Marroquin
References
Montgomery, D.C. (2005) Introduction to Statistical Quality Control, 5th ed. New York: John Wiley & Sons, ISBN 0-471-65631-3