[R] ggplot: Can plot graphs with points, can't plot graph with points and line
Sorkin, John
j@ork|n @end|ng |rom @om@um@ry|@nd@edu
Thu Jul 13 03:17:12 CEST 2023
I am trying to plot four points, and join the points with lines. I can plot the points, but I can't plot the points and the line.
I hope someone can help my with my ggplot code.
# load ggplot2
if(!require(ggplot2)){install.packages("ggplot2")}
library(ggplot2)
# Create data
Time <- c("Age.25","Age.35","Age.45","Age.55")
Medians <-c(128.25,148.75,158.5,168.75)
themedians <- matrix(data=cbind(Time,Medians),nrow=4,ncol=2)
dimnames(themedians) <- list(NULL,c("Time","Median"))
# Convert to dataframe the data format used by ggplot
themedians <- data.frame(themedians)
themedians
# This plot works
ggplot(themedians,aes(x=Time,y=Median))+
geom_point()
# This plot does not work!
ggplot(themedians,aes(x=Time,y=Median))+
geom_point()+
geom_line()
Thank you,
John
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