fun_nonrec: functions for different light response models

Description Usage Arguments Details Examples

Description

fun_nonrec for nonrectangular hyperbola–based models fun_rec for hyperbolic tangent models and fun_exp for exponential based models

Usage

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fun_nonrec(x, Am, alpha, Rd, theta)

Arguments

x

is the PAR intensity of the leaf

Am

is the gross photosynthetic rate

alpha

is quantum yield at low light intensity

Rd

dark respiration rate

theta

is the convexity

Ic

light compensation point

b

an adjusting factor

Details

aims to help us to confirm the range of the start values for nls analysis base on ggplot2 geom_smooth, as we just need to sure the estimate values are as close to the measured values as possible, then the value are the start values for nls.

Examples

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## Not run: 
# none, internal use

## End(Not run)

zhujiedong/lrc_start documentation built on May 31, 2019, 5:24 p.m.