qualityTools (version 1.55)

averagePlot: Function to create average Plots

Description

averagePlot creates all x-y plots of averages by size out of an object of class gageRR. Therfore the averages of the multiple readings by each operator on each part are plotted with the reference value or overall part averages as the index.

Usage

averagePlot(x, main, xlab, ylab, col, ask=TRUE, single=FALSE, ...)

Arguments

x

needs to be an object of class gageRR.

main

a main title for the plot

xlab

a label for the x axis

ylab

a label for the y axis

col

plotting color

ask

a logical value. If ‘TRUE’ (default) the user is asked for input, before a new figure is drawn.

single

a logical value.If ‘TRUE’ a new graphic device will be opened for each plot. By default single is set to ‘FALSE’. For further information see details.

...

arguments to be passed to methods, such as graphical parameters (see par).

Details

averagePlot will split the screen into maximal 3x2 subscreens in which plots will be plotted. If the six subscreens are not enough the function will (by default) ask the user before plotting the next few plots. If ask is set to ‘FALSE’ the function will open as many graphic devices as necessary to show all plots. There are two possible ways to avoid the described internal routine of splitting the screen:

• If single is set to ‘TRUE’ all plots will be plotted in seperate single devices.
• If par(mfrow) is unequal to ‘c(1,1)’ the function will adapt the setting given by par.

References

The idea of the plot and the example given by example(averagePlot) are out of:

• CHRYSLER Group LLC; FORD Motor Company; GENERAL MOTORS Corporation: Measurement System Analysis (MSA), p.114, 4rd ed. Southfield: AIAG, 2010.

See Also

gageRR par http://www.r-qualitytools.org

Examples

# create gageRR-object
gdo = gageRRDesign(Operators = 3, Parts = 10, Measurements = 3, 
                   randomize = FALSE) 
# vector of responses                   
y = c(0.29,0.08, 0.04,-0.56,-0.47,-1.38,1.34,1.19,0.88,0.47,0.01,0.14,-0.80,       
      -0.56,-1.46, 0.02,-0.20,-0.29,0.59,0.47,0.02,-0.31,-0.63,-0.46,2.26,
      1.80,1.77,-1.36,-1.68,-1.49,0.41,0.25,-0.11,-0.68,-1.22,-1.13,1.17,0.94,
      1.09,0.50,1.03,0.20,-0.92,-1.20,-1.07,-0.11, 0.22,-0.67,0.75,0.55,0.01,
      -0.20, 0.08,-0.56,1.99,2.12,1.45,-1.25,-1.62,-1.77,0.64,0.07,-0.15,-0.58,
      -0.68,-0.96,1.27,1.34,0.67,0.64,0.20,0.11,-0.84,-1.28,-1.45,-0.21,0.06,
      -0.49,0.66,0.83,0.21,-0.17,-0.34,-0.49,2.01,2.19,1.87,-1.31,-1.50,-2.16)
# appropriate responses      
response(gdo)=y   
# perform and gageRR                                                                 
gdo=gageRR(gdo)                                                                    
averagePlot(gdo,pch=19)