# (Fitter) 1D projections

Currently the fitter generates three 1D projection plots that are commonly used in the field.

1. The radial projection

2. The angular projection

3. The energy projection

To allow easy comparison between different fits, a chi2 is calculated for each projection:

`Radial projection: chi2 = 180.527, bins = 99`

`Angular projection: chi2 = 153.67, bins = 100`

`Energy projection: chi2 = 137.6, bins = 97`

But these chi2 values are not calculated with the correct statistic, and can thus *only* be used as a guideline - they should not be interpreted as an actual goodness-of-fit for comparisons with other programs / fits. For an absolute measure of the goodness-of-fit, we already have the complete 2D maximum likelihood values. How is this info best forwarded to the users? Currently they're just shown at the end of the fit info file, which I think is misleading.