qplot

0th

Percentile

Quick plot

qplot is a shortcut designed to be familiar if you're used to base plot(). It's a convenient wrapper for creating a number of different types of plots using a consistent calling scheme. It's great for allowing you to produce plots quickly, but I highly recommend learning ggplot() as it makes it easier to create complex graphics.

Usage
qplot(x, y, ..., data, facets = NULL, margins = FALSE, geom = "auto",
  xlim = c(NA, NA), ylim = c(NA, NA), log = "", main = NULL,
  xlab = NULL, ylab = NULL, asp = NA, stat = NULL, position = NULL)

quickplot(x, y, ..., data, facets = NULL, margins = FALSE, geom = "auto", xlim = c(NA, NA), ylim = c(NA, NA), log = "", main = NULL, xlab = NULL, ylab = NULL, asp = NA, stat = NULL, position = NULL)

Arguments
x, y, ...

Aesthetics passed into each layer

data

Data frame to use (optional). If not specified, will create one, extracting vectors from the current environment.

facets

faceting formula to use. Picks facet_wrap() or facet_grid() depending on whether the formula is one- or two-sided

margins

See facet_grid: display marginal facets?

geom

Character vector specifying geom(s) to draw. Defaults to "point" if x and y are specified, and "histogram" if only x is specified.

xlim, ylim

X and y axis limits

log

Which variables to log transform ("x", "y", or "xy")

main, xlab, ylab

Character vector (or expression) giving plot title, x axis label, and y axis label respectively.

asp

The y/x aspect ratio

stat, position

DEPRECATED.

Aliases
  • qplot
  • quickplot
Examples
# NOT RUN {
# Use data from data.frame
qplot(mpg, wt, data = mtcars)
qplot(mpg, wt, data = mtcars, colour = cyl)
qplot(mpg, wt, data = mtcars, size = cyl)
qplot(mpg, wt, data = mtcars, facets = vs ~ am)

# }
# NOT RUN {
qplot(1:10, rnorm(10), colour = runif(10))
qplot(1:10, letters[1:10])
mod <- lm(mpg ~ wt, data = mtcars)
qplot(resid(mod), fitted(mod))

f <- function() {
   a <- 1:10
   b <- a ^ 2
   qplot(a, b)
}
f()

# To set aesthetics, wrap in I()
qplot(mpg, wt, data = mtcars, colour = I("red"))

# qplot will attempt to guess what geom you want depending on the input
# both x and y supplied = scatterplot
qplot(mpg, wt, data = mtcars)
# just x supplied = histogram
qplot(mpg, data = mtcars)
# just y supplied = scatterplot, with x = seq_along(y)
qplot(y = mpg, data = mtcars)

# Use different geoms
qplot(mpg, wt, data = mtcars, geom = "path")
qplot(factor(cyl), wt, data = mtcars, geom = c("boxplot", "jitter"))
qplot(mpg, data = mtcars, geom = "dotplot")
# }
Documentation reproduced from package ggplot2, version 3.0.0, License: GPL-2 | file LICENSE

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