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| # | |
| # ufs93-filesizes.R, 6 Jan 16 | |
| # | |
| # Data from: | |
| # | |
| # Unix File Size Survey - 1993 | |
| # Gordon Irlam | |
| # | |
| # Example from: | |
| # Empirical Software Engineering using R | |
| # Derek M. Jones | |
| source("ESEUR_config.r") | |
| pal_col=rainbow(3) | |
| # max_file_size,num_files,perc_files,cum_perc_files,disk_space,perc_space,sum_perc_space | |
| ufs93=read.csv(paste0(ESEUR_dir, "probability/ufs93-filesizes.csv.xz"), as.is=TRUE) | |
| cum_files=cumsum(ufs93$perc_files)/100 | |
| cum_disk_space=cumsum(ufs93$perc_space)/100 | |
| plot(ufs93$max_file_size, cum_files, type="l", log="x", col=pal_col[1], | |
| ylim=c(0, 1), | |
| xaxt="n", | |
| xlab="Total size (bytes)", ylab="Cumulative probability\n") | |
| axis(1, at=c(16, 512, 16e3, 512e3, 16e6, 512e6), | |
| labels=c("16", "512", "16K", "512K", "16M", "512M")) | |
| text(100, 0.2, "files", cex=1.4) | |
| lines(ufs93$max_file_size, cum_disk_space, col=pal_col[3]) | |
| text(200e3, 0.2, "bytes", cex=1.4) | |
| # Numbers are approximate, worked out by hand. | |
| lines(c(15.6e3, 15.6e3), c(cum_disk_space[16], cum_files[16]), col=pal_col[2]) | |