R Dataset / Package Stat2Data / SeaSlugs

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How To Create a Pie Chart

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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-stat2data-seaslugs.html" frameBorder="0" width="100%" height="307px" />
Attachment Size
dataset-79203.csv 307 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 SeaSlugs data set which pertains to Sea Slugs. The SeaSlugs data set is found in the Stat2Data R package. You can load the SeaSlugs data set in R by issuing the following command at the console data("SeaSlugs"). This will load the data into a variable called SeaSlugs. If R says the SeaSlugs 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. 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 SeaSlugs R data set. The size of this file is about 307 bytes.

Documentation

Sea Slugs

Description

Metamorphose rates for sea slugs exposed to different water samples

Format

A dataset with 36 observations on the following 2 variables.

Time Minutes after tide come in
Percent Proportion of 15 sea slug larvae that metamorphose

Details

Sea slugs, common on the coast of southern California, live on vaucherian seaweed. The larvae from these sea slugs need to locate this type of seaweed to survive. A study was done to try to determine whether chemicals that leach out of the seaweed attract the larvae. Seawater was collected over a patch of this kind of seaweed at 5-minute intervals as the tide was coming in and, presumably, mixing with the chemicals. The idea was that as more seawater came in, the concentration of the chemicals was reduced. Each sample of water was divided into 6 parts. Fifteen larvae were then introduced to this seawater to see what percentage metamorphosed (an indication that the desired chemical was detected).

Source

Data downloaded from http://www.stat.ucla.edu/projects/datasets/seaslug-explanation.html

References

A paper based on these data: Krug, P.J. and R.K. Zimmer. 2000b. Larval settlement: chemical markers for tracing production, transport, and distribution of a waterborne cue. Marine Ecology Progress Series, vol. 207: 283-296.

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