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easyalluvial (version 0.3.2)

quarterly_sunspots: Quarterly mean relative sunspots number from 1749-1983

Description

Quarterly mean relative sunspots number from 1749-1983

Usage

quarterly_sunspots

Arguments

Format

A data frame with 940 rows and 4 variables

year

qu

quarter

spots

total number of sunspots

mean_spots_per_year