[R] Problems with table

Patricia Maforte dos Santos pms at cin.ufpe.br
Mon Feb 3 17:26:02 CET 2003


I'm having difficulties in the manipulation of the function table.
Necessary to have access its elements and I am not obtaining. For example,
if I have a data.frame with name "df" and make:
t < - data.frame(table(df))
and later trying to make a comparison of the type t[1,1 ] < 0.1, generates
an error of the type:

[1] NA
Warning message:
"<" not meaningful for factors in: Ops.factor(t[1, 1], 0.1)

How can I resolve this?


Patrícia Maforte dos Santos
Centro de Informatica
Universidade Federal de Pernambuco
Recife/PE - Brasil

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