How do I calculate a similarity matrix with a Student-t kernel?












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As the title says, how do I calculate a similarity matrix with an un-normalized Student-t kernel? I'm attempting to calculate Kullback-Leibler divergence for different t-SNE runs, but need a Q-matrix for that. A few steps before the Q-matrix, I need the similarity matrices made using the un-normalized Student-t kernel.



I'm using r, not sure if that's relevant to an answer.










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    $begingroup$


    As the title says, how do I calculate a similarity matrix with an un-normalized Student-t kernel? I'm attempting to calculate Kullback-Leibler divergence for different t-SNE runs, but need a Q-matrix for that. A few steps before the Q-matrix, I need the similarity matrices made using the un-normalized Student-t kernel.



    I'm using r, not sure if that's relevant to an answer.










    share|improve this question









    $endgroup$




    bumped to the homepage by Community 5 mins ago


    This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.


















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      $begingroup$


      As the title says, how do I calculate a similarity matrix with an un-normalized Student-t kernel? I'm attempting to calculate Kullback-Leibler divergence for different t-SNE runs, but need a Q-matrix for that. A few steps before the Q-matrix, I need the similarity matrices made using the un-normalized Student-t kernel.



      I'm using r, not sure if that's relevant to an answer.










      share|improve this question









      $endgroup$




      As the title says, how do I calculate a similarity matrix with an un-normalized Student-t kernel? I'm attempting to calculate Kullback-Leibler divergence for different t-SNE runs, but need a Q-matrix for that. A few steps before the Q-matrix, I need the similarity matrices made using the un-normalized Student-t kernel.



      I'm using r, not sure if that's relevant to an answer.







      r dataset visualization similarity tsne






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      asked Aug 4 '17 at 21:59









      BioMattBioMatt

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      bumped to the homepage by Community 5 mins ago


      This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.







      bumped to the homepage by Community 5 mins ago


      This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
























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          $begingroup$

          You can use dt from the stats to get the density of a Student-t distribution. See the help page for extra information about this, and related, functions.



          An example, showing the Student-t distrib



          library(stats)

          xs = seq(-5, 5, .1)
          density = dt(xs, df=1)

          plot(xs, density)


          Student-t distribution






          share|improve this answer









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            1 Answer
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            1 Answer
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            $begingroup$

            You can use dt from the stats to get the density of a Student-t distribution. See the help page for extra information about this, and related, functions.



            An example, showing the Student-t distrib



            library(stats)

            xs = seq(-5, 5, .1)
            density = dt(xs, df=1)

            plot(xs, density)


            Student-t distribution






            share|improve this answer









            $endgroup$


















              0












              $begingroup$

              You can use dt from the stats to get the density of a Student-t distribution. See the help page for extra information about this, and related, functions.



              An example, showing the Student-t distrib



              library(stats)

              xs = seq(-5, 5, .1)
              density = dt(xs, df=1)

              plot(xs, density)


              Student-t distribution






              share|improve this answer









              $endgroup$
















                0












                0








                0





                $begingroup$

                You can use dt from the stats to get the density of a Student-t distribution. See the help page for extra information about this, and related, functions.



                An example, showing the Student-t distrib



                library(stats)

                xs = seq(-5, 5, .1)
                density = dt(xs, df=1)

                plot(xs, density)


                Student-t distribution






                share|improve this answer









                $endgroup$



                You can use dt from the stats to get the density of a Student-t distribution. See the help page for extra information about this, and related, functions.



                An example, showing the Student-t distrib



                library(stats)

                xs = seq(-5, 5, .1)
                density = dt(xs, df=1)

                plot(xs, density)


                Student-t distribution







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Oct 23 '17 at 21:28









                PieterPieter

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