Filter functions (top panel) and (bottom panel) related to their progenitors via Eq.(25). For clarity we show on a logarithmic ϑ-scale. 3 redshift bins and 20 COSEBIs filters defined between θ_min = 1′ and θ_max = 400′ are considered. Each parameter has a different filter function for each redshift pair bin (z-bin). A comparison between these functions and their progenitors (see Schneider et al. 2010; and Asgari et al. 2012) show that they have considerably fewer structures and oscillations. The filters for each parameter are normalized according to Eq.(28). Hence one can compare how effective each z-bin pair is for constraining the parameters.