ppca added, ppca missing data not working yet
ppca added, ppca missing data not working yet

buntyke/GPy,strongh/GPy,befelix/GPy,PredictiveScienceLab/GPy,avehtari/GPy,befelix/GPy,Dapid/GPy,gusmaogabriels/GPy,befelix/GPy,mikecroucher/GPy,maaskola/GPy,Dapid/GPy,jameshensman/GPy,beckdaniel/GPy,PredictiveScienceLab/GPy,avehtari/GPy,mikecroucher/GPy,ptonner/GPy,esiivola/GPYgradients,fivejjs/GPy,dhhjx880713/GPy,maaskola/GPy,esiivola/GPYgradients,SheffieldML/GPy,beckdaniel/GPy,gusmaogabriels/GPy,AlexGrig/GPy,buntyke/GPy,SheffieldML/GPy,AlexGrig/GPy,esiivola/GPYgradients,SheffieldML/GPy,TianpeiLuke/GPy,Dapid/GPy,ptonner/GPy,dhhjx880713/GPy,avehtari/GPy,befelix/GPy,SheffieldML/GPy,ysekky/GPy,ysekky/GPy,ysekky/GPy,esiivola/GPYgradients,TianpeiLuke/GPy,Dapid/GPy,gusmaogabriels/GPy,jameshensman/GPy,mikecroucher/GPy,TianpeiLuke/GPy,beckdaniel/GPy,ysekky/GPy,maaskola/GPy,jameshensman/GPy,buntyke/GPy,ptonner/GPy,avehtari/GPy,jameshensman/GPy,fivejjs/GPy,dhhjx880713/GPy,AlexGrig/GPy,beckdaniel/GPy,ptonner/GPy,AlexGrig/GPy,fivejjs/GPy,strongh/GPy,strongh/GPy,maaskola/GPy,mikecroucher/GPy,dhhjx880713/GPy,buntyke/GPy,PredictiveScienceLab/GPy,PredictiveScienceLab/GPy