error.bar: Add Error Bars on the Graph
Description
Draws error bars.Usage
error.bar(x, y, upper, lower = upper, length = 0.1, ...)
Arguments
x
Coordinates for the error bars, or simply the name of the graph.
y
Coordinates for the center of the error bars, which is the group means.
upper
The length of the error bar, typically 1 se or sd in each direction.
length
The length of the marks.
...
typically additional noninteresting arguments to pass.