search for: tp3809657p3809786

Displaying 1 result from an estimated 1 matches for "tp3809657p3809786".

2011 Sep 13
3
ggplot - class "character" problem
Hi I'm trying to use ggplot2 to chart a dataset that I've drawn in from excel.? When I run the qplot command, I get the following error message: Error: ggplot2 doesn't know how to deal with data of class character It feels like I need to coerce one of the fields in my data frame. Here's the code, which is short: #draw data in from network location