Generates a log scaled sequence of real numbers
lseq(from, to, length.out)seq.int and the default method of seq for numeric
arguments return a vector of type "integer" or "double":
programmers should not rely on which.
seq_along and seq_len return an integer vector, unless
it is a long vector when it will be double.
the starting and (maximal) end values of the
sequence. Of length 1 unless just from is supplied as
an unnamed argument.
desired length of the sequence. A
non-negative number, which for seq and seq.int will be
rounded up if fractional.