R Dataset / Package MASS / genotype

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Embed
<iframe src="https://embed.picostat.com/r-dataset-package-mass-genotype.html" frameBorder="0" width="100%" height="307px" />
Attachment Size
dataset-79000.csv 766 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 genotype data set which pertains to Rat Genotype Data. The genotype data set is found in the MASS R package. You can load the genotype data set in R by issuing the following command at the console data("genotype"). This will load the data into a variable called genotype. If R says the genotype 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 genotype R data set. The size of this file is about 766 bytes.

Documentation

Rat Genotype Data

Description

Data from a foster feeding experiment with rat mothers and litters of four different genotypes: A, B, I and J. Rat litters were separated from their natural mothers at birth and given to foster mothers to rear.

Usage

genotype

Format

The data frame has the following components:

Litter

genotype of the litter.

Mother

genotype of the foster mother.

Wt

Litter average weight gain of the litter, in grams at age 28 days. (The source states that the within-litter variability is negligible.)

Source

Scheffe, H. (1959) The Analysis of Variance Wiley p. 140.

Bailey, D. W. (1953) The Inheritance of Maternal Influences on the Growth of the Rat. Unpublished Ph.D. thesis, University of California. Table B of the Appendix.

References

Venables, W. N. and Ripley, B. D. (1999) Modern Applied Statistics with S-PLUS. Third Edition. Springer.

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

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