Dear All, I am trying to plot polynomial regression line to a scatterplot. I did following so far:
>x=c(1:9335) >y=read.table("gp.txt",header=T,sep="\t") > length(y$PCC) # y$PCC has values between 1 to 0 in decreasing order [1] 9335 > plot(x,y$PCC,col="red") #scatterplot between x and y$PCC > reg=lm(y$PCC~poly(x,6)) # calculating polynomial fit with degree 6 > abline(reg,col="blue") Warning message: In abline(reg, col = "blue") : only using the first two of 7regression coefficients After the above warning a line is drawn in the graph parallel to the y-axis. But I was expecting a curve line through the scatterplot. Am I doing something wrong? Please help! Best Amit ______________________________________________ R-help@r-project.org 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.