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| # | |
| # when-hex.R, 18 Aug 16 | |
| # | |
| # Data from: | |
| # | |
| # Google books project | |
| # + | |
| # The New C Standard | |
| # Derek M. Jones | |
| # | |
| # Example from: | |
| # Empirical Software Engineering using R | |
| # Derek M. Jones | |
| source("ESEUR_config.r") | |
| pal_col=rainbow(2) | |
| c_hex=read.csv(paste0(ESEUR_dir, "data-check/srchex.csv.xz"), as.is=TRUE) | |
| g_hex=read.csv(paste0(ESEUR_dir, "data-check/googlehex.csv.xz"), as.is=TRUE) | |
| plot(c_hex$hex, 100*c_hex$c_cnt/sum(c_hex$c_cnt), col=pal_col[1], type="b", | |
| ylim=c(0, 22), xaxt="n", | |
| xlab="First hex digit", ylab="Percent occurrence\n") | |
| axis(1, at=seq(2, 14, by=2), labels=c("2", "4", "6", "8", "a", "c", "e")) | |
| points(g_hex$hex, g_hex$g_percent, col=pal_col[2], type="b") | |
| legend(x="top", legend=c("C source", "Google books"), | |
| bty="n", fill=pal_col, cex=1.3) | |