Hi All,
I have been trying to plot multiple line plots with different colors on one
figure. in my example below I was able to plot cat vs num1 as a dot plot
connected with lines but was not able to do that for cat vs num2 and I do
not know how to add the third plot cat vs num3. below is my code
df <- data.frame(cat=1:10, num1=rnorm(10), num2=rnorm(10), num3=rnorm(10))
plot(df$num1, type="b", col="red", xlab="categories", ylab="random numbers")
points(df$num1, type="p", pch=21, col="red",bg="red") #plot "num1"
points(df$num2, type="p", pch=21, col="green") #plot "num2"
legend(x="topright", legend=c("num1", "num2"), pch=c(16,16),
col=c("red","green")) #add a legend
how to make the second plot of type="b" and how to add a third plot cat vs
num3?
I appreciate your help
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