High light specific dot in scatterplot
0
0
Entering edit mode
8.2 years ago
Nitin ▴ 170

Hello,

I am trying to plot a scatterplot using ggplot2 in R. I have data as follows in csv format

      A                B
-4.051587034     -2.388276692
-4.389339837     -3.742321425
-4.047207557     -3.460923901
-4.458420756     -2.462180905
-2.12090412      -2.251811973

I want to high light specific two dots with corresponds -2.462180905 and -3.742321425 and to in plot with different colors. Which should to different than default colors in the plot. I tried following code

library(ggplot2)
library(reshape2)
library(methods)
library(RSvgDevice)

Data<-read.csv("table.csv",header=TRUE,sep=",")

data1<-Data[,-4]

plot2<-ggplot(data1,aes(x = A, y = B)) + geom_point(aes(size=2,color=ifelse(y=-2.462180905,'red')))
graph<-plot2 + theme_bw()+opts(axis.line = theme_segment(colour = "black"),panel.grid.major=theme_blank(),panel.grid.minor=theme_blank(),panel.border = theme_blank())
ggsave(graph,file="figure.svg",height=6,width=7)

It is not working the way I want. It gives all dots in same color. Can any body please help

Thanks
Sai

R • 6.5k views
ADD COMMENT
0
Entering edit mode
ADD REPLY
0
Entering edit mode

ifelse has no clue what y is. Try B and see if that fixes things.

ADD REPLY

Login before adding your answer.

Traffic: 716 users visited in the last hour
Help About
FAQ
Access RSS
API
Stats

Use of this site constitutes acceptance of our User Agreement and Privacy Policy.

Powered by the version 2.3.6