Fig. 4.
x1 (left) and c (right) distribution histograms of different surveys overlapping in redshift. Facing up: SDSS and PS1 within the redshift range 0.10 < z < 0.20. Facing down: PS1 and SNLS within the redshift range 0.20 < z < 0.31. Error bars show the Poisson noise. Our stretch base model is illustrated in orange at the mean redshift of the redshift ranges, 0.15 and 0.25, respectively. Kolmogorov-Smirnov test p-values are indicated at the top (bottom) of each panel and show no sign that the SDSS and PS1 (PS1 and SNLS) x1 and c distributions are not drawn from the same underlying distributions.
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