Peng Yu schreef:
Hi,
It is easy to understand the types vector and frame.
But I am wondering why the type factor is designed in R. What is the
advantage of factor compare with other data types in R? Can somebody
give an example in which case the type factor is much better than
other data types?
Regards,
Peng
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Hi,
Factor is better when the variable is categorical, such as 'Forest',
'Woodland' etc. When performing for example an lm() the categorical
variables have to be a factor in order for R to recognize it in that way.
cheers,
Paul
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