Splines re-enabled on home page

[zunzun.com]

I have re-enabled splines on the zunzun.com home page. The previous web site code checked whether the number of data points were less than the number of equation parameters, but did not check for the number of distinct or unique values. This has been corrected and the new "unique value" data checks make the site more robust for data sets such as:

1  1

1  1

1  1

1  1

1  1

1  1

which will now give an error on "insufficient distinct data points" when needed.

James