Evbayiro-IRR Benchmark Dataset for Capital Budgeting Algorithm Comparison

Benchmark dataset for comparing Evbayiro-IRR 0.1.1 with capital budgeting IRR interfaces and root-finding methods. Version 1.1.1 expands the archived evidence by adding an Excel-style default-guess proxy, numpy_financial.irr, pyxirr.irr, and SEC Companyfacts firm-level free-cash-flow proxy cases. The dataset includes 49 public online sourced cases as primary external evidence, 50 SEC public-company proxy sequences as supplementary public-company evidence, and generated/manuscript-derived stress cases for reproducibility. It includes case metadata, solver outputs, convergence statuses, root-relation labels, decision-match fields, timing summaries, and regeneration scripts. SEC company proxy cases are firm-level accounting sequences, not disclosed project appraisal cash flows.