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Changelog

Source: NEWS.md

mongolstats 0.2.0

CRAN release: 2026-07-09

Breaking changes

  • Stricter selection validation: nso_data(), nso_package(), nso_query(), and as_px_query() now error when a selection name does not match any dimension in the table (previously the selection was silently ignored and the full dimension was fetched), when selections are unnamed, or when two selections target the same dimension. This prevents silently fetching wrong-scope data. Errors carry class mongolstats_selection_error.

New features

  • nso_package() no longer fails silently: tables that fail to fetch are reported in a warning naming each table, and a new strict = TRUE argument raises an error instead. Previously failed tables were dropped without any signal.
  • Unified labels vocabulary: nso_data() and nso_package() accept "code" as an alias for "none", and nso_fetch() and nso_dim_values() accept "none" as an alias for "code", so either spelling works everywhere.
  • mn_boundaries() session cache: boundary downloads are cached in memory for the session (repeated calls, including via mn_join_by_name(), no longer re-download multi-megabyte GeoJSON). A refresh = TRUE argument bypasses the cache.
  • nso_period_seq() input validation: malformed periods (wrong width, month 13, NA, vectors) and reversed ranges now error with a clear message instead of silently returning a descending sequence or failing inside seq.Date().

Bug fixes

  • Ambiguous table ids now warn: the NSO catalogue can reuse one table id for different tables in different folders (e.g. DT_NSO_2400_015V1 currently names both the monthly SO2 station table and an annual air-quality-standards table). mongolstats now warns (class mongolstats_ambiguous_table) and names the folder it picked instead of silently resolving to an arbitrary table. Tables that are merely cross-listed in several folders under the same name resolve silently.

  • The embedded PXWeb table index has been refreshed to match the current NSO catalogue. Several tables (e.g. cancer incidence DT_NSO_2100_012V1 and communicable diseases DT_NSO_2100_035V1) moved to different catalogue folders, which made lookups through the stale index return empty results.

  • labels = "mn" and labels = "both" now actually attach Mongolian labels: label metadata was matched to data columns by display text, but the two languages only share the dimension code (the English column is “Sex” while both languages use the code “Хүйс”), so cross-language labels were silently never added. Labels are now routed through a code-to-column map, which also fixes English labels when mongolstats.lang = "mn".

  • Offline mode no longer fires the session-cookie GET: .px_session_cookie() bypassed the offline gate, so nso_data() with cached metadata still performed one live request in offline mode.

  • Retries no longer crash on the first backoff: the default retry backoff formula referenced ..attempt, which does not exist in rlang lambdas (the argument is .x), so any transient response (429/503) failed with “object ‘..attempt’ not found” instead of retrying.

  • HTTP error and verbose messages now include the request URL: an internal misuse of httr2::req_url() as a getter meant the URL always rendered as NA and was dropped from messages.

  • Time columns typed "t" are handled: the PXWeb response flattener kept only "d"-typed columns; a server typing its time column "t" (the PXWeb convention; NSO currently uses "d") would have misaligned row keys with column names.

  • nso_fetch() now honors the mongolstats.default_labels option, matching nso_data().

  • nso_itms_search() matches its query literally as documented (“keyword”); regex metacharacters (e.g. "c++") no longer error. nso_search() remains a regex search.

  • nso_period_seq() rejects trailing garbage after a valid year (e.g. "2024abc", "2024-06"); previously the year prefix was silently used.

  • mn_join_by_name() and mn_fuzzy_join_by_name() error clearly when name_col is not a column of data, instead of failing with an obscure replacement-length error.

  • nso_table_periods() finds the time dimension for lang = "mn" by also matching the Mongolian display name.

  • Mixed codes and labels: Selection values are now mapped element-wise, so codes and labels can be mixed in one vector (e.g. Sex = c("Total", "1")). Previously this produced an “Unknown value: NA” error. Duplicated labels in table metadata now produce a warning naming the ambiguous label.

  • Consistent errors: as_px_query() now raises the same classed errors as nso_data() for invalid selections (previously a plain stop()).

  • Correct error classes: network failures (DNS, timeout) now signal mongolstats_http_error; previously they were misclassified as mongolstats_offline_error, so handlers could not tell offline mode from a genuine connection problem.

Performance

  • The PXWeb session cookie is now seeded once per base URL per session instead of once per data fetch, removing one GET round trip from every nso_data() call after the first.
  • mn_fuzzy_join_by_name() no longer computes a base-R distance matrix that was immediately discarded when stringdist is installed.

CRAN compliance

  • The cache test no longer writes to (or clears) the user’s real cache directory: it now skips when the cache packages are missing and uses a throwaway directory under tempdir(). Previously it ran on CRAN and touched rappdirs::user_cache_dir("mongolstats").
  • The nso_cache_enable() example is now conditional on memoise/cachem/rappdirs being installed.
  • Network-dependent examples are now guarded with NOT_CRAN in addition to curl::has_internet(), so they no longer contact the live PXWeb API during CRAN checks. The nso_rebuild_px_index() example, which crawls the full catalogue, is wrapped in \dontrun{}.
  • inst/extdata/air_monthly_cached.csv is now gzip-compressed (6.4 Mb to 0.3 Mb), bringing the installed package size well under CRAN’s threshold. read.csv() decompresses it transparently; only the vignette referenced it.

Internal

  • Removed the unused legacy HTTP layer (.nso_req(), .nso_get(), .nso_post() and friends) together with the now-inert mongolstats.base_url option; all requests go to the PXWeb API base (mongolstats.px_base_url).
  • nso_search() and nso_itms_search() share one search helper; the PXWeb response flattener was factored into .px_flatten_response() and unit-tested; the mongolstats.parallel option is now registered and reported by nso_options().
  • The GeoBoundaries metadata request now uses the same timeout/retry policy as other requests.
  • Selection mapping and validation consolidated into a single helper (.px_map_selections()), removing three divergent copies of the logic.
  • Table resolution now goes through .px_resolve_table() everywhere (.px_add_labels(), nso_table_periods(), .px_build_body()), removing the remaining inlined index lookups.
  • Integration tests resolve dimension codes from live metadata instead of assuming positional codes, so tests no longer break when NSO adds a new period. Integration and endpoint tests now assert concrete shapes and no longer swallow errors.
  • Added tools/record_fixtures.R to record the httptest2 fixtures used by test-recorded-*.R; those tests previously always skipped because the fixture directories were empty.
  • Removed unused globalVariables() declarations, the unused lifecycle Suggests entry, and a stray rendered vignette HTML from the repository.

mongolstats 0.1.1

CRAN release: 2026-01-26

Patch release to fix CRAN check failures on vignette rebuilding.

Bug Fixes

  • Vignette CRAN Compliance: Added NOT_CRAN guards to all vignettes to prevent code evaluation during CRAN checks. This fixes HTTP 400 errors and data-dependent failures when vignettes are rebuilt on CRAN infrastructure where external API calls may fail.

mongolstats 0.1.0

CRAN release: 2026-01-18

First minor release containing significant data updates, visualization improvements, and refined documentation.

Data & Features

  • Monthly Mortality Data: Switched infant mortality analysis to use monthly data (DT_NSO_2100_015V1) for 2019-2024, enabling more granular trend analysis and up-to-date regional comparisons.
  • UB Air Quality: Added accurate coordinates for Ulaanbaatar air quality monitoring stations and mapped them to districts.
  • Boundaries: Fixed spatial mismatches in administrative boundary names to ensure seamless joins with NSO data.

Visualization & UI

  • Plot Polish: Applied publication-quality styling to all package plots, including:
    • Interactive tooltips with formatted units and rounded numbers.
    • Trend lines with confidence intervals for mortality rates.
    • Log-scaled population maps for better contrast.
    • Clean integer breaks on axes.
  • Standardized Aesthetics: Consistent plot styling across all vignettes.

Documentation

  • New Vignettes:
    • mortality-analysis: In-depth analysis of infant mortality trends and seasonality.
    • environmental-surveillance: Detailed examination of air and water quality monitoring coverage.
  • Vignette Updates:
    • getting-started: Renamed and streamlined for new users.
    • discovery & mapping: Updated with new datasets and visualization techniques.
  • Examples: Added executable examples to key functions (nso_data(), nso_itms(), mn_boundaries()).

Internal

  • Cleanup: Removed legacy labels.R and unused artifacts.
  • Infrastructure: Fully migrated NAMESPACE management to roxygen2 and fixed GitHub Actions workflows.

mongolstats 0.0.0.9000

Initial development snapshot.