seq.int does not return a sequence of integers sometimes

I have a script that goes wrong because I assumed that seq.int would
return integers.

Below please see it does not unless user is super cautious about
inserting "L" with inputs. I think seq.int should do coercion for me
before returning the sequence.

xx <- seq.int(1,10)
class(xx)

[1] "integer"

is.integer(xx)

[1] TRUE

xx <- seq.int(1,10, 2)
class(xx)

[1] "numeric"

is.integer(xx)

[1] FALSE

xx <- seq.int(1,10, 2L)
class(xx)

[1] "numeric"

is.integer(xx)

[1] FALSE

xx <- seq.int(1L, 10L, 2L)
class(xx)

[1] "integer"

is.integer(xx)

[1] TRUE


I think all of those should have same return value, if the function is
correctly named seq.int.

Paul E. Johnson   http://pj.freefaculty.org
Director, Center for Research Methods and Data Analysis http://crmda.ku.edu

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