FWDrumLE2: Ages (subsample) and lengths (all fish) for Freshwater Drum...

Description Format Topic(s) See Also Examples

Description

A total of 253 fish dispersed proportionately over 10-mm total length intervals from the FWDrumLE1 data frame was obtained for age assignment. The remaining fish in the file were only measured for length (i.e., the ages were deleted). This data file can be used to demonstrate the use of age-length keys.

Format

A data frame with 1577 observations on the following 2 variables.

age

Assigned ages (from scales).

tl

Measured total lengths (mm).

Topic(s)

See Also

FWDrumLE1.

Examples

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data(FWDrumLE2)
str(FWDrumLE2)
head(FWDrumLE2)
## Extract the aged sample
FWD.aged <- subset(FWDrumLE2,!is.na(age))
str(FWD.aged)
## Extract the length sample
FWD.length <- subset(FWDrumLE2,is.na(age))
str(FWD.length)

droglenc/FSAdata documentation built on Nov. 21, 2018, 8:25 p.m.