Only put the expression inside the expression? > plot(x,z[3]*x^2+z[2]*x+z[3],type="l", main="My nice plot") > text(-0.9,5,paste(zs[1],' ',expression(x^3))) # should work
____________________________ Robert W. Baer, Ph.D. Associate Professor Department of Physiology A. T. Still University of Health Science 800 W. Jefferson St. Kirksville, MO 63501-1497 USA ----- Original Message ----- From: "Thomas Steiner" <[EMAIL PROTECTED]> To: <r-help@stat.math.ethz.ch> Sent: Wednesday, February 08, 2006 7:47 AM Subject: [R] print formula on plot > I estimate some parameters and I want to print them (pretty) on my plot: > > # somehow estimated parameters > z<-c(1.543523e+00, 1.23453e+00, 3.454000e+00) > > x<-seq(-1,1,length=100) > plot(x,z[3]*x^2+z[2]*x+z[3],type="l", main="My nice plot of the > estimated function") > zs<-format(z,digits=4,scientific=FALSE,trim=TRUE) > > text(-0.9,7,expression(1.54*x^2)) # is what I want, > but DYNAMIC > text(-0.9,6,expression(paste(zf[1],x^3))) # not really > text(-0.9,5,expression(paste(toSting(zf[1]),x^3))) # not really > #using z (double) instead of zf (string) does not help. > > So my question is: > How do I evaluate zf[1] from the variable to it's (String) value? Here > it is used within an expression: this makes all the trouble. > > Thanks for help, I tried 2 hrs now... > Thomas > > ______________________________________________ > 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 > ______________________________________________ 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
