Argument values (@argvals):
         Min. 1st Qu. Median Mean 3rd Qu. Max.
Dim. 1 :    1       2      3    3       4    5

Observed functions (@X):
        Obs 1 Obs 2 Obs 3 Obs 4
Min.        1     2     3     4
1st Qu.     5     6     7     8
Median      9    10    11    12
Mean        9    10    11    12
3rd Qu.    13    14    15    16
Max.       17    18    19    20

