Ages assigned by two different readers to the scales of Striped Bass (Morone saxatilis).
Format
A data frame of 1202 observations on the following 2 variables:
- reader1
Ages assigned by the first reader
- reader2
Ages assigned by the second reader
Source
From Figure 3 in Chapter 10 (Striped Bass) of the VMRC Final Report on Finfish Ageing, 2003 by the Center for Quantitative Fisheries Ecology at Old Dominion University. CSV file
See also
StripedBass5 and StripedBass6.
Examples
data(StripedBass4)
str(StripedBass4)
#> 'data.frame': 1202 obs. of 2 variables:
#> $ reader1: int 2 2 2 2 2 2 2 2 2 2 ...
#> $ reader2: int 2 2 2 2 2 2 2 2 2 2 ...
head(StripedBass4)
#> reader1 reader2
#> 1 2 2
#> 2 2 2
#> 3 2 2
#> 4 2 2
#> 5 2 2
#> 6 2 2
plot(reader2~reader1,data=StripedBass4)
xtabs(~reader1+reader2,data=StripedBass4)
#> reader2
#> reader1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 20
#> 2 50 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
#> 3 0 25 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
#> 4 1 1 25 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
#> 5 0 0 5 45 6 3 0 0 0 0 0 0 0 0 0 0 0 0
#> 6 0 0 0 10 51 23 3 1 0 0 0 0 0 0 0 0 0 0
#> 7 0 0 0 1 15 149 21 1 2 1 0 0 0 0 0 0 0 0
#> 8 0 0 0 0 2 38 97 29 15 1 0 1 0 0 0 0 0 0
#> 9 0 0 0 1 0 5 25 89 51 4 1 0 0 0 0 0 0 0
#> 10 0 0 0 0 0 0 9 32 144 22 17 0 0 0 0 0 0 0
#> 11 0 0 0 0 0 0 0 4 24 25 13 3 2 0 0 0 0 0
#> 12 0 0 0 0 0 0 0 0 2 4 23 5 6 1 0 0 0 0
#> 13 0 0 0 0 0 0 0 0 1 1 9 8 8 2 0 0 1 0
#> 14 0 0 0 0 0 0 0 0 0 0 1 1 5 2 0 0 0 0
#> 15 0 0 0 0 0 0 0 0 0 0 0 0 4 3 0 1 0 0
#> 16 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0
#> 17 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0
#> 18 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
#> 19 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1