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| # | |
| # udd-smooth-ai.R, 6 Sep 16 | |
| # | |
| # Data from: | |
| # Impact of Installation Counts on Perceived Quality: A Case Study of Debian | |
| # Israel Herraiz and Emad Shihab and Thanh H. D. Nguyen and Ahmed E. Hassan | |
| # | |
| # Evidence-based Software Engineering: based on the publicly available data | |
| # Derek M. Jones | |
| # | |
| # | |
| # Example from: | |
| # Empirical Software Engineering using R | |
| # Derek M. Jones | |
| # | |
| # TAG debian package installs package-age | |
| source("ESEUR_config.r") | |
| library("MASS") | |
| plot_layout(3, 1) | |
| q1=read.csv(paste0(ESEUR_dir, "regression/Q1_udd.csv.xz"), as.is=TRUE) | |
| q10=read.csv(paste0(ESEUR_dir, "regression/Q10_udd.csv.xz"), as.is=TRUE) | |
| udd=merge(q1, q10) | |
| plot(udd$age, udd$insts, log="y", col=point_col, | |
| xlab="Age (days)", ylab="Installations\n") | |
| smoothScatter(udd$age, log(udd$insts), | |
| xlab="Age (days)", ylab="log(Installations)\n") | |
| plot(udd$age, udd$insts, log="y", col=point_col, | |
| xlab="Age (days)", ylab="Installations\n") | |
| # There is no log option, so we have to compress/expand ourselves | |
| d2_den=kde2d(udd$age, log(udd$insts+1e-5), n=50) | |
| contour(d2_den$x, exp(d2_den$y), d2_den$z, nlevels=5, add=TRUE) | |