Changing the output of a function in R












-1















I have created a function to generate random poisson distributions but want the function to calculate the mean of lambda also.



xpoisson<-function(x,mu){rpois(x, lambda=mu)}



This is what I have written so far and Im not sure where/how to add the mean(mu) to the function. Any help apppreciated.










share|improve this question



























    -1















    I have created a function to generate random poisson distributions but want the function to calculate the mean of lambda also.



    xpoisson<-function(x,mu){rpois(x, lambda=mu)}



    This is what I have written so far and Im not sure where/how to add the mean(mu) to the function. Any help apppreciated.










    share|improve this question

























      -1












      -1








      -1








      I have created a function to generate random poisson distributions but want the function to calculate the mean of lambda also.



      xpoisson<-function(x,mu){rpois(x, lambda=mu)}



      This is what I have written so far and Im not sure where/how to add the mean(mu) to the function. Any help apppreciated.










      share|improve this question














      I have created a function to generate random poisson distributions but want the function to calculate the mean of lambda also.



      xpoisson<-function(x,mu){rpois(x, lambda=mu)}



      This is what I have written so far and Im not sure where/how to add the mean(mu) to the function. Any help apppreciated.







      r poisson






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      asked Nov 20 '18 at 12:22









      Matlab rookieMatlab rookie

      135




      135
























          2 Answers
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          I believe what you want is not mean(mu) but mean(rpois(x,lamda=mu)) ?
          If so, just add the new line inside the function, assign the distribution and mean to variables and return both values by adding them to a list and returning said list.






          share|improve this answer































            1














            Functions will only output one variable. In order to output two variables you need, for instance, to output them as a list. Try the following:



            xpoisson<-function(x,mu){
            list(rpois(x, lambda=mu),mean(mu))
            }





            share|improve this answer























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              2 Answers
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              2 Answers
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              0














              I believe what you want is not mean(mu) but mean(rpois(x,lamda=mu)) ?
              If so, just add the new line inside the function, assign the distribution and mean to variables and return both values by adding them to a list and returning said list.






              share|improve this answer




























                0














                I believe what you want is not mean(mu) but mean(rpois(x,lamda=mu)) ?
                If so, just add the new line inside the function, assign the distribution and mean to variables and return both values by adding them to a list and returning said list.






                share|improve this answer


























                  0












                  0








                  0







                  I believe what you want is not mean(mu) but mean(rpois(x,lamda=mu)) ?
                  If so, just add the new line inside the function, assign the distribution and mean to variables and return both values by adding them to a list and returning said list.






                  share|improve this answer













                  I believe what you want is not mean(mu) but mean(rpois(x,lamda=mu)) ?
                  If so, just add the new line inside the function, assign the distribution and mean to variables and return both values by adding them to a list and returning said list.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Nov 20 '18 at 12:29









                  boskiboski

                  578213




                  578213

























                      1














                      Functions will only output one variable. In order to output two variables you need, for instance, to output them as a list. Try the following:



                      xpoisson<-function(x,mu){
                      list(rpois(x, lambda=mu),mean(mu))
                      }





                      share|improve this answer




























                        1














                        Functions will only output one variable. In order to output two variables you need, for instance, to output them as a list. Try the following:



                        xpoisson<-function(x,mu){
                        list(rpois(x, lambda=mu),mean(mu))
                        }





                        share|improve this answer


























                          1












                          1








                          1







                          Functions will only output one variable. In order to output two variables you need, for instance, to output them as a list. Try the following:



                          xpoisson<-function(x,mu){
                          list(rpois(x, lambda=mu),mean(mu))
                          }





                          share|improve this answer













                          Functions will only output one variable. In order to output two variables you need, for instance, to output them as a list. Try the following:



                          xpoisson<-function(x,mu){
                          list(rpois(x, lambda=mu),mean(mu))
                          }






                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered Nov 20 '18 at 12:30









                          Hugo SilvaHugo Silva

                          1427




                          1427






























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