search for: tstpred

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2016 Aug 07
1
problem with abine(lm(...)) for plot(y~x, log='xy')
...o: In the following plot, the fitted line plots 100 percent above the points: tstDat <- data.frame(x=10^(1:3), y=10^(1:3+.1*rnorm(3))) tstFit <- lm(log(y)~log(x), tstDat) plot(y~x, tstDat, log='xy') abline(tstFit) I can get the correct line with the following: tstPredDat <- data.frame(x=10^seq(1, 3, len=2)) tstPred <- predict(tstFit, tstPredDat) lines(tstPredDat$x, exp(tstPred)) I tried "abline(tstFit)" hoping it would work. If the error had not been so obvious, I might not have noticed it. Thanks for your work to build a be...