xmrr is a package designed to generate and visualize control charts from time-series data.
xmr(): Generates XMR data.
xmr_chart(): Takes the output from xmr() and makes an XMR chart.
For the development version:
For the official CRAN version:
XMRS have two key asssumptions:
Measurements of value happen over sequential time.
Each unit of time has only one measurement of value.
This snippet shows the basic syntax:
Year <- seq(2001, 2009, 1) Measure <- runif(length(Year)) df <- data.frame(Year, Measure) xmr(df, "Measure", recalc = T)
For information about errors and problems, check the problems and solutions file.