Re: [R] Scatter plot from tapply output, labels of data

Try this: # I created some example data mydf - data.frame( Species=sample(paste0(Species, 1:3), 50, TRUE), d13C=15+rnorm(50), d15N=15+rnorm(50), Year=sample(2009:2012, 50, TRUE)) attach(mydf) Nmean - tapply(d15N, list(Year,Species), mean) Cmean - tapply(d13C,

[R] Scatter plot from tapply output, labels of data

Hei, i am trying to plot the means of two variables (d13C and d15N), by 2 grouping factors (Species and Year) that i obtained by the function tapply. I would like to plot with different colours according to the Year and show the Species as data labels. My data looks like this: Species