NEWS

inflateR 0.2.0

Added inflation_rate() for calculating cumulative or annualised inflation rates between any two years
Added list_currencies() to show all supported currencies and their data coverage
Added round parameter to all four adjustment functions (round = 2 default preserves backward compatibility; use round = NULL for full precision)
All adjustment functions now accept vector amount inputs
Refactored internal code: extracted shared helpers to eliminate 4x code duplication across functions
Added comprehensive test suite (80+ tests covering all functions, all 13 currencies, error handling, inverse properties, and vectorisation)
Updated data-raw/cpi_data.R to cover all 13 currencies and both CPI and GDP deflator series in a single script

Added 5 new currencies: NZD (New Zealand), INR (India), KRW (South Korea), BRL (Brazil), NOK (Norway)
Bundled CPI and GDP deflator data for all new currencies (World Bank series)
BRL CPI coverage begins 1980; all other new series cover 1960–2024

Added adjust_real() for GDP deflator-based adjustment (World Bank NY.GDP.DEFL.ZS)
Bundled GDP deflator data (1960–2024) for all 8 supported currencies
adjust_real() accepts the same currency codes and country names as adjust_inflation()

Initial release
Supports inflation adjustment for GBP, AUD, USD, EUR, CAD, JPY, CNY, and CHF
Bundled CPI data from 1960–2024 for all currencies (CNY from 1986)
Currency codes and country names both accepted as input (case-insensitive)
Data sourced from the World Bank Development Indicators (FP.CPI.TOTL), rescaled to 2020 = 100