Overlaying graphs from different datasets with ggplot
On Thu, Apr 30, 2009 at 2:03 PM, MUHC-Research
<villandl at dms.umontreal.ca> wrote:
Dear R-users, I recently began using the ggplot2 package and I am still in the process of getting used to it. My goal would be to plot on the same grid a number of curves derived from two distinct datasets. The first dataset (called molten.data) looks like this : Column names : Perc, Week, Weight P10 ? 21 ?333.3554 P90 ? 21 ?486.0480 P10 ? 22 ?452.6347 P90 ? 22 ?563.8263 P10 ? 23 ?575.0960 P90 ? 23 ?661.6841 P10 ? 24 ?700.4449 P90 ? 24 ?779.4067 P10 ? 25 ?828.4966 P90 ? 25 ?917.1222 The second dataset (called skj) looks like this: Column names : Week, Perc, Weight 21 ? ?1 ?317.5 22 ? ?1 ?392.5 23 ? ?1 ?467.5 24 ? ?1 ?542.5 25 ? ?1 ?617.5 26 ? ?1 ?697.5 21 ? ?2 ?535.0 22 ? ?2 ?632.5 23 ? ?2 ?737.5 24 ? ?2 ?855.0 25 ? ?2 ?980.0 26 ? ?2 1115.0 21 ? ?3 ?425.0 22 ? ?3 ?512.5 23 ? ?3 ?602.5 24 ? ?3 ?697.5 25 ? ?3 ?800.0 26 ? ?3 ?907.5
...
So, what am I doing wrong in this situation?
The perc columns are different in the two data frames. How do you expect them to match up? Hadley