Hello,
I would like to have an advise about how to extract objects from a list of matrixs I have fitted models (stored in an object called "model") using a matrix response and the same formula and data. I get back, from summary.lm, as many sumarries as I have responses. Thus I have extract the coefficient matrix for each model with the following command :
coefficients(summary(model))
My goal is only to get the "t values" for each model. Generally to extract a colum from a matrix I do [,"t value"], and to apply a function to a list I use lapply. But here, I can not manage to extract the columns, since the "[]" function, is not really a function with arguments ...
Why not? Try e.g.:
X <- matrix(1:4, 2) "["(X,,2)
So in order to solve your problem try:
lapply(YourList, "[", , "t-value")
or use an anonymous function:
lapply(YourList, function(x) x[, "t-value"])
Uwe Ligges
Can someone give me a solution ? (in avoiding to make a loop around my list components).
Thanks in advance,
Isabelle.
Isabelle Zabalza-Mezghani IFP - Reservoir Engineering Department Rueil-Malmaison - France
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lapply(....., function(x) x[,"t value"])
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