evalDtensor | R Documentation |
Evaluates a list of (mixed) partial derivatives
evalDtensor(x, mu, m=1)
x |
unevaluated (list) of expression(s) |
mu |
values at which the derivatives are evaluated: names need to match terms in x |
m |
order of derivative |
tensor
Jarrod Hadfield j.hadfield@ed.ac.uk
Dtensor
, D
f<-expression(beta_1 + time*beta_2+u)
Df<-Dtensor(f, eval=FALSE, m=2)
evalDtensor(Df, mu=data.frame(beta_1=0.5, beta_2=1, time=3, u=2.3))
Dtensor(f, mu=c(1,3,1,2.3), m=2)
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