quarterly_sunspots {easyalluvial} | R Documentation |
Quarterly mean relative sunspots number from 1749-1983
Description
Quarterly mean relative sunspots number from 1749-1983
Usage
quarterly_sunspots
Format
A data frame with 940 rows and 4 variables
- year
- qu
quarter
- spots
total number of sunspots
- mean_spots_per_year
Source
Andrews, D. F. and Herzberg, A. M. (1985) Data: A Collection of Problems from Many Fields for the Student and Research Worker. New York: Springer-Verlag.
[Package easyalluvial version 0.3.2 Index]