hi,
is it possible to lable data points on a scatter chart not with the x or y
values but with a thrid column from the spreadsheet. e.g. the following
example, time is plotted on the x axis and value on the y and I'd like the
data points labeled a,b,c ...

label time value
a 1 1
b 2 4
c 3 9
d 4 16
e 5 25
f 6 36
g 7 49
h 8 64
i 9 81
j 10 100
k 11 121
l 12 144
m 13 169