DataStudio curve fit graphically fits the data, but the fit parameters are incorrect.
This is a known bug in DataStudio 220.127.116.11 and earlier versions.
Double-click on the fit parameters and uncheck the "Fit with the first selected point at x=0". (This option is checked by default on the parabolic, inverse exponent, and natural exponential curve fits.)
Creation Date: 04/14/2009