You need seet the FUN argument:
X - with( FDP0D, ave( IAC, list( Key), FUN = mean))
On 5/1/08, Chip Barnaby [EMAIL PROTECTED] wrote:
Henrique, thanks for the response. As a new
user, I was unaware of with() and ave(), those are both very helpful.
However, I don't think your method is quite
Henrique, thanks for the response. As a new
user, I was unaware of with() and ave(), those are both very helpful.
However, I don't think your method is quite
right. I for all rows in each Key, I want the mean( IAC) where ProfA = 0.
To simplify the problem, I have made a subset
dataframe
If I understand your question:
x$IAC0 - with(x, ave(IAC, list(ProfA, Key), FUN = mean))
On Wed, Apr 30, 2008 at 3:52 PM, Chip Barnaby [EMAIL PROTECTED]
wrote:
Dear all --
I have a data frame containing data related to heat gain through windows.
The general form is ...
Key ProfAIAC
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