On 31/03/2018 11:57 AM, varin sacha via R-help wrote:
Dear R-experts,
Here below my reproducible R code. I want to add many straight lines to a plot using
"abline"
The last fit (fast Tau-estimator, color yellow) will not appear on the plot.
What is going wrong ?
Many thanks for your reply.
It's not quite reproducible: you forgot the line to create Dataset.
It's probably something like
Dataset <- data.frame(Y, Z)
##########
Y=c(2,4,5,4,3,4,2,3,56,5,4,3,4,5,6,5,4,5,34,21,12,13,12,8,9,7,43,12,19,21)
Z=c(43,2,1,2,34,4,3,4,5,30,4,5,4,3,4,5,56,6,43,21,34,19,12,11,9,34,21,23,2,19)
reg1<-lm(Z ~ Y)
plot(Y,Z)
abline(reg1, col="black")
install.packages("robustbase")
library (robustbase)
reg=lmrob(Z ~ Y, data = Dataset)
abline(reg, col="green")
install.packages("MASS")
library(MASS)
Huber=rlm(Z ~ Y, data = Dataset)
abline(Huber,col="red")
Tukey=rlm(Z ~ Y, data = Dataset,psi=psi.bisquare)
abline(Tukey,col="purple")
install.packages("quantreg")
library(quantreg)
L1=rq(Z ~ Y, data = Dataset,tau=0.5)
abline(L1,col="blue")
install.packages("RobPer")
library(RobPer)
FastTau(Z,Y)
fast=FastTau(Z,Y)
abline(fast, col="yellow")
abline() doesn't know what to do with the "fast" object. It isn't a
vector containing intercept and slope, it's a list containing them. So
you'll need something like
abline(unlist(fast), col="yellow")
Duncan Murdoch
##########
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