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KwokC (1) [Avatar] Offline
#1
Dear Robert,
I would like to raise a question about Factors discussed in Section 2.2.5. I understand that a thread about Factors has already been created but I do not know how to create a query under this thread.

The second last paragraph on p33 reads, "The statement status <- factor (status, ordered = TRUE) will encode the vector as (3,2,1,3) and associate these values internally as 1=Excellent, 2=Improved, and 3=Poor."

Does R assign these values internally? If R does assign these values, could you please explicitly spell out the rule? If not, how may the user assign these values? I beg your pardon if I have overlooked any clue about internal association of values with ordinal variables. Thanks in anticipation.

Regards,
KwokC