# plotMeans

0th

Percentile

##### Plot Means for One or Two-Way Layout

Plots cell means for a numeric variable in each category of a factor or in each combination of categories of two factors, optionally along with error bars based on cell standard errors or standard deviations.

Keywords
hplot
##### Usage
plotMeans(response, factor1, factor2,
error.bars = c("se", "sd", "conf.int", "none"), level=0.95,
xlab = deparse(substitute(factor1)),
ylab = paste("mean of", deparse(substitute(response))),
legend.lab = deparse(substitute(factor2)), main = "Plot of Means",
pch = 1:n.levs.2, lty = 1:n.levs.2, col = palette())
##### Arguments
response
Numeric variable for which means are to be computed.
factor1
Factor defining horizontal axis of the plot.
factor2
If present, factor defining profiles of means
error.bars
If "se", the default, error bars around means give plus or minus one standard error of the mean; if "sd", error bars give plus or minus one standard deviation; if "conf.int", error bars give a confiden
level
level of confidence for confidence intervals; default is .95
xlab
Label for horizontal axis.
ylab
Label for vertical axis.
legend.lab
Label for legend.
main
Label for the graph.
pch
Plotting characters for profiles of means.
lty
Line types for profiles of means.
col
Colours for profiles of means
##### Value

• The function invisibly returns NULL.

interaction.plot