What Jim is alluding to is that sometimes in the process of reading in
data a small typo can mean that what was intended to be a numeric
variable is read in as a factor. So he was suggesting that you double
check that this has not happened to you.
Michael
On 23/12/2019 11:45, Neha gupta wrote:
Hi Jim,
Another possibility is that the values used in the initial calculation
have been read in as factors
Which calculation you are talking about? I did not use factors as variable.
Regards
On Mon, Dec 23, 2019 at 3:12 AM Jim Lemon <drjimle...@gmail.com> wrote:
Hi Neha,
Well, that's a clue to why you are getting NAs:
log10(0)
[1] -Inf
Another possibility is that the values used in the initial calculation
have been read in as factors.
Jim
On Mon, Dec 23, 2019 at 10:55 AM Neha gupta <neha.bologn...@gmail.com>
wrote:
Hi Jim
The objective function is passed to san_res where we have defined the 4
parameters of gbm and the values are initialized in san_res.
The output variable price has only three values: 0, 1, 2 (like
categorical values), so someone told me try to remove the log10 from the
price.
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