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Sleuth3 (version 1.0-3)

ex1509: Sunspots

Description

The data are the annual sunspot counts in each year from 1700 to 2010.

Usage

ex1507

Arguments

Format

A data frame with 311 observations on the following 2 variables.

Year

year in which sunspots were counted, from 1700 to 2010

Sunspots

the number of sunspots observed in a year

References

SIDC-Solar Influences Dta Center, http://sidc.oma.be/sunspot-data/ (July 15, 2011).

Examples

Run this code
# NOT RUN {
str(ex1509)
# }

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