hydro_axis_trans: Hydrologic axis transforms for ggplot2
In eheisman/hydroutils: Misc. Plotting and Analysis Functions for Hydrology

Description Usage Arguments Details Author(s) Examples

Axis transforms for hydrologic plots in ggplot2.

1	flowBreaks(Q, labels = c(1, 2, 3, 5, 7), blankLines = TRUE)

`Q`	values for flow to create scale along
`labels`	First digit of breaks to label. Defaults to 1,2,3,5,7 for log axes; 1,2,5 for probability axes. Multiples of these are assumed.
`blankLines`	(default `true`) tells `flowBreaks` to draw an additional set of 10 lines between each major tic mark.
`maxLevel`	smallest place to which breaks should be created for probability axes.
`lines`	which breaks should have lines for probability axes, must be superset of labels
`invert`	switch the direction of the probability axes
`as.percent`	Show labels by percent instead of probability
`byPeriod`	Show labels with return interval (1 / probability)
`periodSuffix`	String to concatenate to return interval. (default `" yr"`)
`distribution`	change distribution for probability axis, defaults to normal. Untested with other distributions.
`distArgs`	arguments pasted to distribution specified in `distribution`

hydro_prob_trans and hydro_prob_breaks for probability axes on frequency plots

hydro_flow_trans and hydro_flow_breaks for log axes with additional breaks between powers of ten.

Evan Heisman

ggplot(peaks, aes(y=PEAK_DAILY_FLOW, x=weibullProbs(PEAK_DAILY_FLOW))) + geom_point() +
  theme_bw(base_size=11) + theme(legend.position = "bottom", panel.grid.minor=element_blank()) +
  scale_y_continuous(trans=hydro_flow_trans()) +
  scale_x_continuous(trans=hydro_prob_trans(lines=c(1,2,5), labels=c(1,2,5), byPeriod=TRUE)) +
  stat_smooth(method="glm", family=gaussian(link="log"))