Re: [R] Population growthrate with Euler-Lotka

Thank you Simon and David for your suggestions. They were most helpful. The Skript is now working as it was originally planed. Greetings Mark Gesendet: Montag, 30. Juni 2014 um 13:06 Uhr Von: "Simon Blomberg" An: "Mark Christjani" Cc: "r-help@r

Re: [R] Population growthrate with Euler-Lotka

> > res$root Error: object 'res' not found Any idea on this "Error in uniroot(f = eulerlotka, interval = r.range, tol = 1e-08) : f() values at end points not of opposite sign"-matter? Kind regards, Mark Gesendet: Montag, 30. Juni 201

[R] Population growthrate with Euler-Lotka

Hi everybody, I`m Mark and I do my PhD in biology. I try using R to calculate a population growth rate of animals grown on different types of food. Our workgroup has a R-skript to do so, but sadly nobody, who knows how this works. I`ve never used R before, but got some stuff figure