search for: scat1d

...ve a quick question about using plot.Predict now that the rms package uses lattice. I'd like to add tick marks along the regression line, which is given by data=llist(variablename) in the plot call. The ticks show up fine, but I'd like to alter the color. I know the ticks are produced by scat1d, but after spending a fair bit of time going through documentation, it still isn't clear to me how to do this in the context of lattice. Guidance would be greatly appreciated. Thanks, Mike Babyak Duke University Medical Center My code using R 2.10.1/windows XP myx<-c(1,2,3,4) myy<-c(1...

...ols.1 <- ols(Y~rcs(X,3), data=DATA, x=T, y=T) summary.lm(ols.1) # --> non-linearity is significant anova(ols.1) d <- datadist(Y,X) options(datadist="d") plot(ols.1) #plot(ols.1, conf.int=.80, conf.type=c('individual')) points(X,Y) scat1d(X, tfrac=.2) When plotting this confidence interval looks normal: #plot(ols.1, conf.int=.80, conf.type=c('individual')) Workstation Windows XP // R version 2.2 // Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm

Dear colleagues, I have a question regarding controlling the jitter when plotting predictions in the rms package. Below I've simulated some data that reflect what I'm working with. The model predicts a continuous variable with an ordinal score, a two-level group, and a continuous covariate. Of primary interest is a plot of the group by score interaction, where the score is the ordinal

...curve labels * Added digits argument to calibrate.default * Added new ref in val.prob help page * Corrected location of dataset in residuals.lrm help page (thanks frederic.holzwarth at bgc-jena.mpg.de) * Fixed latex.rms to latex-escape percent signs inside value labels * Added scat1d.opts to plot.Predict * Changed method of specifying variables to vary by not requiring an equals sign and a dot after the variable name, for Predict, summary, nomogram, gendata, survplot.rms * Added factors argument to Predict to handle the above for survplot * Made gendata a non-gene...

...curve labels * Added digits argument to calibrate.default * Added new ref in val.prob help page * Corrected location of dataset in residuals.lrm help page (thanks frederic.holzwarth at bgc-jena.mpg.de) * Fixed latex.rms to latex-escape percent signs inside value labels * Added scat1d.opts to plot.Predict * Changed method of specifying variables to vary by not requiring an equals sign and a dot after the variable name, for Predict, summary, nomogram, gendata, survplot.rms * Added factors argument to Predict to handle the above for survplot * Made gendata a non-gene...

Hi... In Stata, there is the ability to display scatter plots with data points at the same (x,y) location, using the 'jitter' command of the twoway scatter stata command. Anyone know of a way that I can do the equivalent thing in R? For non-Stata readers, if jitter is enabled in stata, and n-points would be at the same (x,y) location, the points are offset a bit (according to

...text html latex example missing link(s): Design.trans reShape text html latex example missing link(s): crosstabs rm.boot text html latex example missing link(s): lm.fit.qr Design bootcov rm.impute scat1d text html latex example missing link(s): plot.Design nomogram.Design hist.data.frame datadensity.plot.Design spower text html latex example missing link(s): cph summary.formula...