Description Usage Arguments Details Examples
fun_nonrec for nonrectangular hyperbola–based models fun_rec for hyperbolic tangent models and fun_exp for exponential based models
1 | fun_nonrec(x, Am, alpha, Rd, theta)
|
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 |
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.
1 2 3 4 | ## Not run:
# none, internal use
## End(Not run)
|
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