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| # | |
| # grant-sackman.R, 26 Aug 16 | |
| # Data from: | |
| # The 28:1 {Grant}/{Sackman} legend is misleading, or: {How} large is interpersonal variation really? | |
| # Lutz Prechelt | |
| # | |
| # Example from: | |
| # Empirical Software Engineering using R | |
| # Derek M. Jones | |
| source("ESEUR_config.r") | |
| brew_col=rainbow_hcl(8) | |
| gs=read.csv(paste0(ESEUR_dir, "developers/grant-sackman.csv.xz"), as.is=TRUE) | |
| gs$task=factor(gs$task) | |
| boxplot(time ~ group+task, data=gs, notch=TRUE, horizontal=TRUE, col=brew_col, | |
| xlab="Time (minutes)") | |
| # library("plyr") | |
| # | |
| # daply(gs, .(task), function(df) max(df$time)/min(df$time)) | |
| # daply(gs, .(task, group), function(df) max(df$time)/min(df$time)) | |