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| # | |
| # lang-year.R, 27 May 20 | |
| # Data from: | |
| # Online Historical Encyclopedia of Programming Languages | |
| # Diarmuid J. Pigott and Bruce M. Axtens | |
| # http://hopl.info | |
| # | |
| # Example from: | |
| # Evidence-based Software Engineering: based on the publicly available data | |
| # Derek M. Jones | |
| # | |
| # TAG programming-language_new | |
| source("ESEUR_config.r") | |
| ly=read.csv(paste0(ESEUR_dir, "ecosystems/lang-year.csv.xz"), as.is=TRUE) | |
| plot(ly$Year, ly$Languages, type="l", col=point_col, | |
| xaxs="i", yaxs="i", | |
| # Post 2000 effort seems low | |
| xlim=c(1949, 2000), ylim=c(0, 320), | |
| xlab="Year", ylab="New languages\n") | |