calculateLittoralDepth: Calculate non-wadeable littoral depth metrics

In jasonelaw/nrsa: Calculate metrics for NRSA protocol data.

Description

calculateLittoralDepth calculates the non-wadeable littoral depth metrics. There are two different implementations that vary primarily in speed. calculateLittoralDepth is faster although the implementation is somewhat more obtuse. calculateLittoralDepth2 uses ddply and is fairly simple.

Usage

calculateLittoralDepth(uid, depth)

Arguments

uid	a vector of site-visit indicators
depth	a vector of depth measurements (with the same units)

Examples

calculateLittoralDepth(uid = rep(1:10, each = 10), depth = rnorm(100))
calculateLittoralDepth(uid = rep(1, 5), depth = rep(NA, 5))

jasonelaw/nrsa documentation built on Nov. 8, 2019, 11:34 a.m.