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Changelog

Source: NEWS.md

fio (development version)

fio 1.1.0

CRAN release: 2026-06-07

💥 Breaking changes

  • miom$compute_multiregional_multipliers() output columns renamed: destination_country, destination_sector, and destination_label are now shock_country, shock_sector, and shock_label (they identify the origin of the final-demand shock).
  • miom$get_regional_interdependence() now uses block sums from the spillover matrix for total_spillover_out and total_spillover_in. Removed interdependence_index; added spillover_balance and spillover_export_share.

fio 1.0.0

CRAN release: 2026-02-27

✨ Enhancements

  • New miom() function to create multi-regional input-output models (#155).
    • New get_bilateral_trade() function to extract bilateral trade flows from multi-regional input-output models.
    • New compute_multiregional_multipliers() function to compute intra-regional, inter-regional and spillover multipliers from multi-regional input-output models.
    • New get_spillover_matrix() function to show how shocks in one region affect other regions in multi-regional input-output models.
    • New get_net_spillover_matrix() function to show net spillover effects between regions pairs in multi-regional input-output models.
    • New get_regional_interdependence() function to compute regional self-reliance and interdependence measures in multi-regional input-output models.
  • New close_model() method to support closed single-region input-output models by moving household and/or government sectors from final demand to intermediate transactions matrix (#154).
  • New param matrix to compute_key_sectors() and compute_hypothetical_extraction() so users can decide if should be used Leontief or Ghosh matrices when computing forward linkages (#148).
  • New download_wiod() function to download World Input-Output Database (WIOD) tables directly from their website (#152).

💥 Breaking changes

  • Built-in data (fio::br_2020 and fio::world_2000) was moved from {fio} to a data-only companion package {fiodata}.

fio 0.1.6

CRAN release: 2025-04-06

🐞 Bug fixes

  • Fix R-devel (4.5) issues (#119).
  • Remove CARGO_LINKER environment variable to use the correct linker for Windows (#123).
  • Fix makevars.in and makevars.win.in to avoid race condition when building package in parallel make (#127).

💥 Breaking changes

  • Removed threads slot from iom object (#95).
  • Raise minimum supported Rust version to 1.77 due to pulp crate (faer dependency) (#127).

🛠️ Other improvements

  • Fix homebrew installation instructions in README and tools/msrv.r (#105).
  • Translate br_2020 dataset to English (#113).
  • Fedora 36, 37, 38 and 39 from test workflow, since CRAN runners were updated to Fedora 40 (#126).

fio 0.1.2

CRAN release: 2024-08-27

🛠️ Other improvements

  • Fixes system checks scripts to correctly handle errors when Rust and Cargo are not found.

fio 0.1.1

CRAN release: 2024-08-21

🛠️ Other improvements

  • Update extraction.rsand multipliers.rs in order to lower minimum supported Rust version from 1.71 to 1.67.
  • Set minimum version of rustc >= 1.67.1 in SystemRequirements.
  • Add system checks to rustc and prompt users either install, if missing, or update when version is lower than specified in DESCRIPTION.

fio 0.1.0

CRAN release: 2024-08-01

✨ Enhancements

  • New import_element() to programmatically import data from an Excel file
  • New data import addin makes easy to import data from clipboard or an Excel file
  • New iom uses the efficiency of R6 classes
  • New add and remove methods to add and remove elements from an iom object
  • New br_2020 dataset with a 51 sector Brazilian input-output table for 2020
  • New compute_tech_coeff() and compute_leontief_inverse() methods uses the power of Rust and faer crate to substantially increase performance
  • New compute_multiplier_*() methods to compute multipliers from a given input-output table:
    • compute_multiplier_output() for the output multiplier
    • compute_multiplier_employment() for the employment multiplier
    • compute_multiplier_wages() for the wages multiplier
    • compute_multiplier_taxes() for the taxes multiplier
  • New compute_influence_field() method to compute the field of influence of each sector
  • New compute_key_sectors() method to compute the key sectors of an input-output table, based on power of dispersion and sensitivity of dispersion, and their coefficients of variations
  • New compute_allocation_coeff() method to compute the allocation coefficients of an input-output table
  • New compute_ghosh_inverse() method to compute the Ghosh inverse of an input-output table
  • New compute_hypothetical_extraction() method to compute impact on demand, supply and both structures after hypothetical extraction of a sector
  • New set_max_threads() method to allow the user to control number of threads used by {fio} (required by CRAN).

🚀 Performance improvements

  • Use Rust instead of base R for compute_*() functions
  • Use faer crate instead of nalgebra for faster linear algebra calculations
  • Use R6 classes for a clean, object state-changes, memory-efficient object-oriented programming

🛠️ Other improvements

  • Added assertions to check if elements imported into slots are matrices at initialization of iom object and at add() method
  • Added assertions to check matrices dimensions at initialization of iom object and at add() method
  • More informative warnings and errors messages with {cli} package
  • Added assertions to check if number format of slots is double at initialization of iom object and at add() method
  • Fix build configuration to comply with CRAN policies