[R] strange differences in vector operation versus manual calculation

Rui Barradas ruipbarradas at sapo.pt
Wed May 2 18:22:09 CEST 2012


Hello,

>
> I must be missing something very obvious, but I just cannot see it.
> 
The hardest to find errors.
Wrong manual calculation in t1, powers have precedence right to left and
before additions.

t1b <- 10^(params[1]-xx)^params[2]
t3b <- 1 + t1b
t4b <- t2/t3b
t5b <- params[4] + t4b
all.equal(yy, t5b)
TRUE

Hope this helps,

Rui Barradas


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