R Dataset / Package Stat2Data / Caterpillars
On this R-data statistics page, you will find information about the Caterpillars data set which pertains to Caterpillars. The Caterpillars data set is found in the Stat2Data R package. You can load the Caterpillars data set in R by issuing the following command at the console data("Caterpillars"). This will load the data into a variable called Caterpillars. If R says the Caterpillars data set is not found, you can try installing the package by issuing this command install.packages("Stat2Data") and then attempt to reload the data with the library() command. 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 Caterpillars R data set. The size of this file is about 44,285 bytes.
Caterpillars
Description
Measurements on a sample of Manduca Sexta caterpillars
Format
A dataset with 267 observations on the following 18 variables.
Instar | Coded from 1 (smallest) to 5 (largest) indicating stage of the caterpillar's life |
ActiveFeeding | Indicator (Y or N) of whether or not the animal is actively feeding |
Fgp | Indicator (Y or N) of whether or not the animal is in a free growth period |
Mgp | Indicator (Y or N) of whether or not the animal is in a maximum growth period |
Mass | Body mass (in grams) |
LogMass | Log (base 10) of body mass |
Intake | Wet food intake (in grams/day) |
LogIntake | Log (base 10) of Intake |
WetFrass | Amount of frass (solid waste) produced (in grams/day) |
LogWetFrass | Log (base 10) of WetFrass |
DryFrass | Amount of frass, after drying, produced (in grams/day) |
LogDryFrass | Log (base 10) of DryFrass |
Cassim | CO2 assimilation (ingestion - excretion) |
LogCassim | Log (base 10) of Cassim |
Nfrass | Nitrogen in frass |
LogNfrass | Log (base 10) of Nfrass |
Nassim | Nitrogen assimilation (ingestion - excretion) |
LogNassim | Log (base 10) of Nassim |
Details
Student and faculty researchers at Kenyon College conducted numerous experiments with Manduca Sexta caterpillars to study biological growth.
Source
We thank Professors Harry Itagaki, Drew Kerkhoff, Chris Gillen, and Judy Holdener and their students for sharing this data from research supported by NSF InSTaRs grant #0827208.
Dataset imported from https://www.r-project.org.
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