splits y series containing NAs
[listx,listy]=dealyna(y)
y = a row or column vector
listx = list of coordinates corresponding to non NA vectors
listy = list of vector of values homogenous with respect to NA's
m=[1 %nan %nan %nan 3 4 3 %nan 6];[listx,listy]=dealyna(m) //Example gives: //listy = // listy(1) // 1. // listy(2) //! 3. 4. 3. ! // 6. // listx = // listx(1) // 1. // listx(2) //! 5. 6. 7. ! // listx(3) // 9.