nls

I'm trying to fit a Boltzmann sigmoid 1/(1+exp((x-p1)/p2)) to this small experimental dataset: xdata <- c(-60,-50,-40,-30,-20,-10,-0,10) ydata <- c(0.04, 0.09, 0.38, 0.63, 0.79, 1, 0.83, 0.56) I know that it is pretty simple to do it. For example, using nls : fit <-nls(ydata ~ 1/(1+exp((xdata-p1)/p2)),start=list(p1=mean(xdata),p2=-5)) I get the following results: Formula: ydata ~ 1/(1 + exp((xdata - p1)/p2)) Parameters: Estimate Std. Error t value Pr(>|t|) p1 -33.671 4.755 -7.081 0.000398 *** p2 -10.336 4.312 -2.397 0.053490 . --- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

There's a nice explanation here of how to use ggplot2 to create a scatterplot, fit the data using nls, and plot the fit, all in one line, like so myhist = data.frame(size = 10:27, counts = c(1L, 3L, 5L, 6L, 9L, 14L, 13L, 23L, 31L, 40L, 42L, 22L, 14L, 7L, 4L, 2L, 2L, 1L) ) ggplot(data=myhist, aes(x=size, y=counts)) + geom_point() + geom_smooth(method="nls", formula = y ~ N * dnorm(x, m, s), se=F, start=list(m=20, s=5, N=300)) My question is: using this construction, is it possible to pull out the actual nls object from that call? I'd like to know my coefficients, etc. Right now I can't figure

I am using the thin Oracle JDBC driver ver 10.2.0 (ojdbc14.jar). I would like to configure its NLS_LANG setting manually. Is there a way? Currently it fetches this setting from the VM variable user.language (which is set automatically by setting the current locale, or on startup from the system environment). This is a problem when the users switch the application locale to a one that is unsupported by the Oracle JDBC driver (e.g. mk_MK). In this case, the next time I fetch a connection I get the following exception: ORA-00604: error occurred at recursive SQL level 1 ORA-12705: Cannot access