[R] How to access to an created array with a cicle for

2016-05-05 Thread Catarina Silva
e array as a "string" but don't associate the name to the array object created. How can I call the array created before with a for cicle varying the index's "x","y","z" ? Ty, Catarina Silva [[alternative HTML versi

[R] Package for error analysis

2016-02-04 Thread Catarina Silva
Hi, I'm doing error analysis of predictive models and I need to calculate global error, this is, I need to calculate the resultant error from propagation of indirect measurements errors. I know a little about propagation error theory, using derivation formulas to calculate it, but I want to know

Re: [R] [GGplot] Geom_smooth with formula "power"?

2015-11-09 Thread Catarina Silva
LSE) > And then I don't have the confidence interval. If I do: > ggplot(data,aes(x = idade,y = v_mt)) + + geom_point(alpha=2/10, shape=21,fill="darkgray", colour="black", size=3) + + geom_smooth(method = 'nls', formula = y ~ a * x^b, star

[R] [GGplot] Geom_smooth with formula "power"?

2015-11-06 Thread Catarina Silva
results, but I can't draw a power curve on the graphic. Someone know how to solve this problem? Ty, Catarina Silva Imprima no nosso papel - Cuide do ambiente -- Print on our paper - Care for the environment. -- http://backoffice.portucel