Displaying 1 result from an estimated 1 matches for "ddsin".
Did you mean:
dsin
2012 Mar 19
3
Issue with asin()
...determine the degree-days necessary for a
given individual to reach a given growth stade. The algorithm (and context)
is explained here: http://www.oardc.ohio-state.edu/gdd/glossary.htm , and
so I implemented my function in R as follows:
DD <- function(Tmin, Tmax, Tseuil, meanT, method = "DDsin")
### function that calculates the degree-days based on
### minimum and maximum recorded temperatures and the
### minimal threshold temperature (lower growth temperature)
{
### method arcsin
if(method == "DDsin"){
cond1 <- (Tmax <= Tseuil)
cond2 <- (Tmin >= Tseuil)...