weightcdf: Simple weighted cdf

In leppott/InvertExtirp: Extirpation Analysis for Benthic Macroinvertebrates and Fish

Description

Uses wtd.quantile() from Hmisc.

Usage

weightcdf(df1 = my.samp, ss = ss, SampID = "Sample.ID",
  xvar = "cond", nt = 25, log = TRUE, np = 61)

Arguments

df1	; default = my.samp
ss	Species crosstabed data; default = "ss" from global environment.
SampID	Site/sample id column; default = "Sample.ID"
xvar	variable on which to base calculations; default = "cond"
nt	Minimum number of occurence; default = 25.
log	A boolean for if the values should be log (base 10) transformed; default = TRUE
np	Number of bins; default = 61.

Value

data frame: taxaname, XC95.all, N

Examples

### Step 1A. use samples to calcualte HC05
### basic models for season, and ecoregion
allyear <- weightcdf(df1 = bio.sample[!is.na(bio.sample$lgSO4HCO3),], ss = ss, SampID = "Sample.ID", xvar = "lgSO4HCO3", nt = 25)

leppott/InvertExtirp documentation built on Nov. 8, 2019, 5:58 p.m.