[R] Convert dataframe to array of records

[Jeroen Ooms]

I would like to convert a dataframe to an array of lists, one for every
record. A natural choide is apply as.list to the rows. However, as it seems,
as.list() automatically converts all list elements to the same datatype. Eg:

myData <- data.frame(a="foo",b=as.logical(rbinom(10,1,.5)));
apply(myData,1,as.list);

In this output, all boolean values have been converted to character strings.
I don't understand why this happens; a list does not require that every
element is of the same datatype. Is there an easy way (ie avoid for-loops
etc) to convert the dataframe to an array of records, while keeping the
datatypes for every field? 

-----
Jeroen Ooms * Dept. of Methodology and Statistics * Utrecht University 

Visit  http://www.jeroenooms.com www.jeroenooms.com  to explore some of my
current projects.





 
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