R help - May 2017 - visualization of KNN results in text classification

Hi all,

Does anyone know what is the best way to visualize KNN(K nearest neighbor)
results for classification of texts in R?

My data set has only speeches and the type of the people for them which is
control group or Alzheimer group, KNN classifies these two groups for me but I
don't know how to plot the results. Does anyone know any special package?


Thanks for any help!
Elahe

Any idea?! 

    On Sunday, May 7, 2017 5:56 PM, Elahe chalabi via R-help <r-help at
r-project.org> wrote:
 

 Hi all,

Does anyone know what is the best way to visualize KNN(K nearest neighbor)
results for classification of texts in R?

My data set has only speeches and the type of the people for them which is
control group or Alzheimer group, KNN classifies these two groups for me but I
don't know how to plot the results. Does anyone know any special package?


Thanks for any help!
Elahe

______________________________________________
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.


   
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Well, probably you need to first tell us why none of the suggestions that
come up when you google "plot KNN results in R" work for you, and what
other kind of plot you are trying to produce, and what you have tried, so
we can offer advice that helps.

As it is, we have no idea what you are after.

Sarah

On Mon, May 8, 2017 at 9:21 AM Elahe chalabi via R-help <
r-help at r-project.org> wrote:
> Any idea?!
>
>     On Sunday, May 7, 2017 5:56 PM, Elahe chalabi via R-help <
> r-help at r-project.org> wrote:
>
>
>  Hi all,
>
> Does anyone know what is the best way to visualize KNN(K nearest neighbor)
> results for classification of texts in R?
>
> My data set has only speeches and the type of the people for them which is
> control group or Alzheimer group, KNN classifies these two groups for me
> but I don't know how to plot the results. Does anyone know any special
> package?
>
>
> Thanks for any help!
> Elahe
>
> ______________________________________________
> 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.
>
>
>
>         [[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.
>
-- 
Sarah Goslee
http://www.stringpage.com
http://www.sarahgoslee.com
http://www.functionaldiversity.org

	[[alternative HTML version deleted]]

As far as I know, kNN groups by Eucledian distance. So, you need numerical data
as input. You said your dataset has only ?speeches? and ?type of people?. Are
these input? or one of them is input and the latter one is output? Type of
people should be a factor variable (I guess). I don?t know how you represent
?speech? in your dataset. As character or numerical representation of a feature?
If you send a minimal example of the problem, we can help you. Please, read
posting guide.
> On 7 May 2017, at 18:44, Elahe chalabi via R-help <r-help at
r-project.org> wrote:
> 
> Hi all,
> 
> Does anyone know what is the best way to visualize KNN(K nearest neighbor)
results for classification of texts in R?
> 
> My data set has only speeches and the type of the people for them which is
control group or Alzheimer group, KNN classifies these two groups for me but I
don't know how to plot the results. Does anyone know any special package?
> 
> 
> Thanks for any help!
> Elahe
> 
> ______________________________________________
> 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.