Financial data is often trapped inside static PDFs. It forces analysts to copy figures manually while the market moves ahead ...

Excel is everywhere—more than 750 million people open a workbook each year to balance budgets, fine-tune supply chains, and ...

varguid is a Python implementation of the stage-1 variance-guided regression method described in: Liu S. and Lu M. (2026). Variance-Guided Regression for Heteroscedastic Data with a Grouping-Based ...