PlantGrowth

From datasets v3.1.3 by R-core R-core@R-project.org

Results from an Experiment on Plant Growth

Results from an experiment to compare yields (as measured by dried weight of plants) obtained under a control and two different treatment conditions.

Keywords: datasets

Usage

PlantGrowth

Format

A data frame of 30 cases on 2 variables.

[, 1]	weight
numeric	[, 1]

The levels of group are ‘ctrl’, ‘trt1’, and ‘trt2’.

Source

Dobson, A. J. (1983) An Introduction to Statistical Modelling. London: Chapman and Hall.

Examples

library(datasets)

## One factor ANOVA example from Dobson's book, cf. Table 7.4:
require(stats); require(graphics)
boxplot(weight ~ group, data = PlantGrowth, main = "PlantGrowth data",
        ylab = "Dried weight of plants", col = "lightgray",
        notch = TRUE, varwidth = TRUE)
anova(lm(weight ~ group, data = PlantGrowth))

Documentation reproduced from package datasets, version 3.1.3, License: Part of R 3.1.3

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