Hi everybody

Im on R version 2.11.1  on Mac OS X

I am working through David Kahle's example of using ggplot2 with Rgooglemaps
(found here:
https://github.com/hadley/ggplot2/wiki/Crime-in-Downtown-Houston,-Texas-:-Combining-ggplot2-and-Google-Maps).
Excellent page by the way. I have downloaded the data and the code and want
to learn how to do this by first simulating David's results and then working
it through line by line to make sure I understand what every line of code
does and then applying it to my own data. When I run the code however, it
breaks on the following line:

df <- suppressMessages(join(df_xyll, m_map, type = 'right'))

I do not seem to have the join() function. This looks almost SQLish. I have
tried ??join and looking on CRAN and a google search but I cannot find this
function. Is there a special library that one has to install for this to
work? Can anyone help please.

Best regards
Christiaan

	[[alternative HTML version deleted]]

