[R] Percentiles for unequal probability sample

(i in 1:length(trees.df$Diameter)){ for (j in 1:round(trees.df$TreesPerAcre[i]*explodeFactor)){ k <- k +1 explodedDiameters.df$Diameter[k] <- trees.df$Diameter[i] } } quantile(explodedDiameters.df$Diameter) # appropriate percentiles (for trees per acre) quantile(trees.df$Diameter)

[R] Speed up or alternative to 'For' loop

1]) {df$HeightGrowth[i] <- df$Height[i]-df$Height[i-1] } } Trevor Walker Email: trevordaviswal...@gmail.com [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE