R Dataset / Package MASS / rotifer


On this R-data 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.

Numbers of Rotifers by Fluid Density


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.





specific density of fluid.


number falling out for P. major.


total number of P. major.


number falling out for K. cochlearis.


total number of K. cochlearis.


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


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

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Attachment Size
dataset-67611.csv 403 bytes
Dataset License
GNU General Public License v2.0
Documentation License
GNU General Public License v2.0

This documentation is licensed under GPLv3 or later.