Warning: I am a complete newbie to R. I have read ISwR, but I am still finding myself completely stuck on some simple concepts.
I have tried everything I can think of to solve this one, and finally decided that enough was enough and I need a pointer to a solution. I have the following summary from lm(): ---- > summary(lm(nu1~nu4)) Call: lm(formula = nu1 ~ nu4) Residuals: Min 1Q Median 3Q Max -1572.62 -150.38 -21.70 168.57 2187.84 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 29.88739 43.68881 0.684 0.494 nu4 1.00036 0.01025 97.599 <2e-16 *** --- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 Residual standard error: 470.9 on 298 degrees of freedom Multiple R-Squared: 0.9697, Adjusted R-squared: 0.9696 F-statistic: 9526 on 1 and 298 DF, p-value: < 2.2e-16 ---- But I want to access some of these numbers programmatically. I finally figured out that to get the estimate of the nu4 coefficient I need to do: ---- > lm(nu1~nu4)$coefficients[2] nu4 1.000363 ---- which to me as a long-time C++ programmer is close to black magic (I've been programming since 1972; I have to say that R is unlike anything I've ever seen, and it's far from trivial to get my head around some of it -- for example, how I could have known a priori that the above is the way to get the nu4 coefficient is beyond me). Anyway, having figured out how to get the estimate of the coefficient, I not-unnaturally wanted also to find a way to access the std. error of the estimate (the value 0.01025 in the summary). But I am completely mystified as to how to do it :-( Any help gratefully (VERY gratefully) received, and I apologise if this is a really, really stupid question and that the answer lies somewhere in some documentation that I've obviously not properly taken on board. ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.