Multiple lines

[JonasMetz]

When using ggQC I get multiple upper and lower control lines,

Here is the code, which I use

# Socket Thickness Data
file.path = '~/Documents/R-Programs/WheelerDonald/'
file.name = 'data_Wheeler_SocketThickness.csv'
DF = read.table(paste0(file.path, file.name), sep=",", header = TRUE)

##
# Combine time and cycles and generate a new column:
DF$subGrp = paste0(DF$time, DF$cycles)
ggplot(DF, aes(x=subGrp, y=y, color=color)) + stat_QC(method="xBar.rBar")

I also tried to convert "subGrp" into a factor, but the result is the same. I append the dataset.

data_Wheeler_SocketThickness.csv

[JonasMetz]

The problem is that I use a factor for the x-values, instead of using numerical values.