Patrick (Malone Quantitative)
2020-Dec-29 16:53 UTC
[R] Fwd: Error in setting the parameter values of k
Likely, yes. Your error message says k must be at least 1, so searching below 1 is probably your issue. Also, logically, zero nearest neighbors doesn't seem to make a lot of sense. Pat On Tue, Dec 29, 2020 at 11:01 AM Neha gupta <neha.bologna90 at gmail.com> wrote:> Thank you for your response. > > Are you certain that k = 0 is a legitimate setting? > > Since, the default value of k is 1, I wanted to search between the values > of 0 to 3. > > Milne, Do you mean I have to provide both the lower and upper bounds > greater than 1 in order to get rid of this error? > > On Tue, Dec 29, 2020 at 4:50 PM T. A. Milne <milneta at tuta.io> wrote: > > > I am using mlr3 'fast nearest neighbor' leaner i.e. fnnIts parameter is > > 'k' which has a default value of 1. When I use tuningusing random > search, I > > set the parameter of k as: lower= 0, upper=3But it gives an error > > messageError in self$assert(xs) : Assertion on 'xs' failed: k: Element 1 > > is not >= 1.I have tried different values but the error remains.Warm > > regards [[alternative HTML version deleted]] > > I know absolutely nothing about the specific statistical tools being used > > here, but: > > > > In several nearest neighbor routines, the parameter k refers to the > number > > of nearest neighbors to be considered (in some computation). In that > case, > > k must be at least 1, which is what the cited error message seems to be > > claiming. Are you certain that k = 0 is a legitimate setting? > > > > > > - T. Arthur Milne > > > > > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >-- Patrick S. Malone, Ph.D., Malone Quantitative NEW Service Models: http://malonequantitative.com He/Him/His [[alternative HTML version deleted]]
Thanks a lot, Milne and Patrick. I am going to change the values, hopefully the error message will disappear. Warm regards On Tue, Dec 29, 2020 at 5:53 PM Patrick (Malone Quantitative) < malone at malonequantitative.com> wrote:> Likely, yes. Your error message says k must be at least 1, so searching > below 1 is probably your issue. > > Also, logically, zero nearest neighbors doesn't seem to make a lot of > sense. > > Pat > > On Tue, Dec 29, 2020 at 11:01 AM Neha gupta <neha.bologna90 at gmail.com> > wrote: > >> Thank you for your response. >> >> Are you certain that k = 0 is a legitimate setting? >> >> Since, the default value of k is 1, I wanted to search between the values >> of 0 to 3. >> >> Milne, Do you mean I have to provide both the lower and upper bounds >> greater than 1 in order to get rid of this error? >> >> On Tue, Dec 29, 2020 at 4:50 PM T. A. Milne <milneta at tuta.io> wrote: >> >> > I am using mlr3 'fast nearest neighbor' leaner i.e. fnnIts parameter is >> > 'k' which has a default value of 1. When I use tuningusing random >> search, I >> > set the parameter of k as: lower= 0, upper=3But it gives an error >> > messageError in self$assert(xs) : Assertion on 'xs' failed: k: Element >> 1 >> > is not >= 1.I have tried different values but the error remains.Warm >> > regards [[alternative HTML version deleted]] >> > I know absolutely nothing about the specific statistical tools being >> used >> > here, but: >> > >> > In several nearest neighbor routines, the parameter k refers to the >> number >> > of nearest neighbors to be considered (in some computation). In that >> case, >> > k must be at least 1, which is what the cited error message seems to be >> > claiming. Are you certain that k = 0 is a legitimate setting? >> > >> > >> > - T. Arthur Milne >> > >> > >> > >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide >> http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. >> > > > -- > Patrick S. Malone, Ph.D., Malone Quantitative > NEW Service Models: http://malonequantitative.com > > He/Him/His >[[alternative HTML version deleted]]