I need help in ggplot. : > smokeyes_male
    LungCap.cc. Age..years. Height.inches. Smoke Gender Caesarean
211       6.575          10           63.2   yes   male       yes
220       7.000          10           62.8   yes   male       yes
252       9.350          11           71.2   yes   male        no
258       7.925          11           67.1   yes   male        no
280      10.275          11           72.2   yes   male        no
285       8.925          11           65.6   yes   male       yes
305       6.450          12           61.0   yes   male       yes
345       8.000          12           64.5   yes   male        no
370       9.750          13           72.8   yes   male        no
371       8.025          13           66.2   yes   male        no


I need to plot a relationship between lung capacity and age with respect to the height of the person or whether the person is Caesarean or not. Please help.. i get the following error:

> library(ggplot2)
> smoker_male_graph=ggplot(smokeyes_male,aes(x=smokeyes_male$age,y=smokeyes_male$LungCap.cc.)) + geom_point()
> smoker_male_graph + facet_wrap(~smokeyes_male$Height.inches.)
Error: Aesthetics must be either length 1 or the same as the data (33): x, y