MAINT: Extract a lerp helper function to make the algorithm of quantile clearer
MAINT: Extract a lerp helper function to make the algorithm of quantile clearer

This does not affect the behavior in any way

simongibbons/numpy,anntzer/numpy,mhvk/numpy,grlee77/numpy,mhvk/numpy,mhvk/numpy,charris/numpy,madphysicist/numpy,jakirkham/numpy,simongibbons/numpy,pbrod/numpy,numpy/numpy,jakirkham/numpy,abalkin/numpy,seberg/numpy,pbrod/numpy,madphysicist/numpy,rgommers/numpy,charris/numpy,madphysicist/numpy,seberg/numpy,endolith/numpy,simongibbons/numpy,grlee77/numpy,madphysicist/numpy,grlee77/numpy,abalkin/numpy,grlee77/numpy,pbrod/numpy,anntzer/numpy,pdebuyl/numpy,jakirkham/numpy,endolith/numpy,pdebuyl/numpy,simongibbons/numpy,pbrod/numpy,numpy/numpy,charris/numpy,endolith/numpy,rgommers/numpy,pdebuyl/numpy,pbrod/numpy,jakirkham/numpy,mattip/numpy,grlee77/numpy,mattip/numpy,endolith/numpy,anntzer/numpy,rgommers/numpy,anntzer/numpy,mattip/numpy,pdebuyl/numpy,jakirkham/numpy,numpy/numpy,numpy/numpy,mhvk/numpy,mhvk/numpy,rgommers/numpy,seberg/numpy,charris/numpy,madphysicist/numpy,simongibbons/numpy,mattip/numpy,abalkin/numpy,seberg/numpy