R Dataset / Package MASS / rotifer

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How To Compute the Mean

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How To Create a Plot

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How to Compute the Median

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Embed
<iframe src="https://embed.picostat.com/r-dataset-package-mass-rotifer.html" frameBorder="0" width="100%" height="307px" />
Attachment Size
dataset-67611.csv 403 bytes
Dataset License
GNU General Public License v2.0
Documentation License
GNU General Public License v2.0
Dataset Help

On this Picostat.com statistics page, you will find information about the rotifer data set which pertains to Numbers of Rotifers by Fluid Density. The rotifer data set is found in the MASS R package. You can load the rotifer data set in R by issuing the following command at the console data("rotifer"). This will load the data into a variable called rotifer. If R says the rotifer data set is not found, you can try installing the package by issuing this command install.packages("MASS") and then attempt to reload the data. If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the rotifer R data set. The size of this file is about 403 bytes.

Documentation

Numbers of Rotifers by Fluid Density

Description

The data give the numbers of rotifers falling out of suspension for different fluid densities. There are two species, pm Polyartha major and kc, Keratella cochlearis and for each species the number falling out and the total number are given.

Usage

rotifer

Format

density

specific density of fluid.

pm.y

number falling out for P. major.

pm.total

total number of P. major.

kc.y

number falling out for K. cochlearis.

kc.tot

total number of K. cochlearis.

Source

D. Collett (1991) Modelling Binary Data. Chapman & Hall. p. 217

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Dataset imported from https://www.r-project.org.

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