smacker: Mackerel data from a Spanish survey

In sm: Smoothing Methods for Nonparametric Regression and Density Estimation

Mackerel data from a Spanish survey

Description

These data were recorded by a Spanish survey, as part of a multi-country survey of the abundance of mackerel eggs off the coast of north-western Europe, in 1992.

The variables are:

Density	egg density
smack.lat	latitude of sampling position
smack.long	longitude of sampling position
smack.depth	bottom depth
Temperature	surface temperature
D200	distance from the 200m depth contour line

Background to the survey and the data are provided by Watson et al. (1992), Priede and Watson (1993) and Priede et al (1995). Borchers et al (1997) describe an analysis of the data.

sm documentation built on July 4, 2022, 5:06 p.m.