Thanks Sean!
On Fri, Oct 24, 2014 at 3:04 PM, Sean Owen <so...@cloudera.com> wrote:
> This is just a Scala question really. Use ++
>
> def inc(x:Int, y:Int) = {
> if (condition) {
> for(i <- 0 to 7) yield(x, y+i)
> } else {
> (for(k <- 0 to 24-y) yield(x, y+k)) ++ (for(j<- 0 to y-16)
> yield(x+1,j))
> }
> }
>
> On Fri, Oct 24, 2014 at 8:52 PM, HARIPRIYA AYYALASOMAYAJULA
> <aharipriy...@gmail.com> wrote:
> > Hello,
> >
> > My map function will call the following function (inc) which should yield
> > multiple values:
> >
> >
> > def inc(x:Int, y:Int)
> > ={
> > if(condition)
> > {
> > for(i <- 0 to 7) yield(x, y+i)
> > }
> >
> > else
> > {
> > for(k <- 0 to 24-y) yield(x, y+k)
> > for(j<- 0 to y-16) yield(x+1,j)
> >
> > }
> > }
> >
> > The "if" part works fine, but in the else part , if should return 2
> sets of
> > values (from the first for loop and then from the second for loop). But,
> > only the values from second for loop (within else) are returned by the
> > function.
> >
> > I tried alternative ways but I am unable to make the above function give
> me
> > the expected result.
> >
> > Can someone help me understand how yield works, and what should be used
> in
> > place of yield to return multiple values when two for loops have to be
> > used.(like the test case in within else condition) - If it was in JAVA
> or
> > C, we could simply store the values in an array or a list and return the
> > same but I'm still not clear how it works in Scala/Spark.
> >
> > Thank you for your time.
> >
> > --
> > Regards,
> > Haripriya Ayyalasomayajula
> > Graduate Student
> > Department of Computer Science
> > University of Houston
> > Contact : 650-796-7112
>
--
Regards,
Haripriya Ayyalasomayajula
Graduate Student
Department of Computer Science
University of Houston
Contact : 650-796-7112
