breakPointsQ10: Plot Q10 values for groups and calculate optimum temperature.

In gtimmerhaus/aquaR: Functions for aquaculture related topics

Description

Plots and calcualtes the breakpoints for optimum temperature according to Q10 values. The default threshold is 1.9. Optimum temperature is assumed at intersection of of this threshold and the Q10 value curve for the respective group.

Usage

breakPointsQ10(x, group, col = "black", marks = T, error.bars = T,
  ylim = c(0, 3), pch = 16, legend = T, threshold = 1.9, main = F,
  plot.results = T, xlab = "start point temperature", ylab = "Q10 value")

Arguments

x	data matrix, numbers or NAs only, samples in lines, one column per measurement step.
col	color vector. Should have the same length as numberof groups. Otherwise grey shades are used.
marks	add marks for the optimum temperature
error.bars	if TRUE, standard error bars are added
ylim	define own ylim
pch	define dot style
threshold	defines the threshold for optimum temperature. Default is 1.9
main	title of plot. Default is FALSE = no title
plot.results	plot results if TRUE (default). If FALSE, only calculated breakpoints are returned.
xlab	label for x-axis
ylab	label for y-axis
groups	group vector (must have same length as rows in data)
legeng	if TRUE, a legend is added

Examples

breakPointsQ10(x=data, group=groups, col=c("blue","red","black"))

gtimmerhaus/aquaR documentation built on May 17, 2019, 8:57 a.m.