Maximum likelihood methods are computationally expensive when the number of taxa is large, because the number of possible trees (for each of which the probability must be calculated) grows factorially with the number of taxa.
The computational cost of classical PC solution schemes is unaffordable as the number of deterministic simulations to be calculated grows dramatically with the number of stochastic dimension.
We also used the MACA data to calculate growing degree days (Sork et al. 2010), and annual summed moisture index (Koch and Coulston 2015).
To calculate growing degree days, or a measure of heat accumulation, we used the GDD equation described in Otto et al. (2007, [21]), with a base temperature of 10°C, and no ceiling temperature requirement.
From these data, we calculated mean growing season temperature and average annual precipitation for the study region.
The ~3% error in dissection accuracy cannot explain the isotropy factor values calculated for growing cells (Table 3).
Thermal time was calculated in growing degree days (°Cd) using a simple sum of mean daily air temperature above 0°C taking the day of cutting as a starting point.
Representatives of all three campaigns disputed such assessments, questioning the accounting methods analysts used to calculate the growing debt and saying they could enact their plans without making matters worse.
AGL disputes the way the way the provisioning is calculated to grow over that time, but Vesey admits that a blow-out of rehabilitation costs is at the top of their "issues list".
We then summed the GDD numbers between the first day of the year of flowering to the date that the specimen was flowering to calculate cumulative growing degree days (CGDD).
