[R] 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

Re: [R] ggplot - class character problem

I suspect it is to do with your method of creating the dataframe, I would check to see if the columns in the df are numeric, which you can do by: is.numeric(flat_data$time) for each variable, if it is not numeric (and at least one must be a character, given the error message) then redefine as

Re: [R] ggplot - class character problem

Hi David, On Tue, Sep 13, 2011 at 6:00 AM, David Menezes david.n.mene...@gmail.com wrote: 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

Re: [R] ggplot - class character problem

On Tue, Sep 13, 2011 at 7:32 AM, RCulloch ross.cull...@dur.ac.uk wrote: I suspect it is to do with your method of creating the dataframe, I think the error is actually triggered by quoting the name of the data.frame in the qplot call. I would check to see if the columns in the df are numeric,