[R] Error bars on barplots for only particular bars

Hi, I have a data set that has columns bird.species, tree.speciesand count. I am investigating differences in tree species usge by two species of birds. Count is numerical and is a count of observations of bird species x using tree species x. For bird species A I have 3 different counts for

Re: [R] Error bars on barplots for only particular bars

On 01/15/2010 08:43 AM, kellys17 wrote: Hi, I have a data set that has columns bird.species, tree.speciesand count. I am investigating differences in tree species usge by two species of birds. Count is numerical and is a count of observations of bird species x using tree species x. For bird