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| # | |
| # pull-req-corrg.R, 22 Aug 18 | |
| # | |
| # Data from: | |
| # | |
| # Georgios Gousios and Andy Zaidman | |
| # A Dataset for Pull Request Research | |
| # Code below is a modified version of code supplied with the data. | |
| # | |
| # Example from: | |
| # Evidence-based Software Engineering: based on the publicly available data | |
| # Derek M. Jones | |
| # | |
| # TAG pull-request development | |
| source("ESEUR_config.r") | |
| library("corrgram") | |
| par(fin=c(4.0, 4.0)) | |
| homebrew_req=read.csv(paste0(ESEUR_dir, "communicating/pull-homebrew.csv.xz"), as.is=TRUE) | |
| # cor requires numeric columns | |
| columns = c("lifetime_minutes", "mergetime_minutes", | |
| "num_commits", "src_churn", "test_churn", | |
| "files_added", "files_deleted", | |
| "files_modified", "files_changed", | |
| "src_files", "doc_files", "other_files", | |
| "num_commit_comments", "num_issue_comments","num_comments", | |
| "num_participants", | |
| "sloc", "team_size", | |
| "perc_external_contribs", "commits_on_files_touched", | |
| "test_lines_per_kloc", "test_cases_per_kloc", "asserts_per_kloc", | |
| "watchers", | |
| "prev_pullreqs", "requester_succ_rate", "followers") | |
| used = subset(homebrew_req, select=columns) | |
| # Cross correlation ellipses | |
| ctab = cor(used, method = "spearman", use="complete.obs") | |
| corrgram(ctab, upper.panel=panel.pie, lower.panel=panel.shade) | |