{
  "_id": "6ac4dfa4f511ae58c09a28cb",
  "Package": "catchmentACS",
  "Title": "Isochrone-Based Area-Weighted ACS Aggregation",
  "Version": "0.6.0",
  "Authors@R": "person(\"JoonHo\", \"Lee\", , \"jlee296@ua.edu\", role = c(\"aut\", \"cre\", \"cph\"),\ncomment = c(ORCID = \"0009-0006-4019-8703\"))",
  "Description": "Computes American Community Survey (ACS) estimates for the\narea within a given drive time of each of a set of points, such\nas the locations of pre-kindergarten classrooms. Such an area\nis called an isochrone. The drive-time areas come from a\nrouting service, either the 'Open Source Routing Machine'\n('OSRM', <https://project-osrm.org/>) or 'openrouteservice'\n(<https://openrouteservice.org/>), and the ACS 5-year estimates\nof census tracts come from the Census Bureau\n(<https://www.census.gov/data/developers.html>) through the\n'tidycensus' package, one state at a time. The tracts that\noverlap an area are combined by area weighting, which uses two\nweights: the share of each tract's area that lies inside, for\ncounts and rates, and each tract's share of the overlapping\narea, for the medians and per-person values of three ACS tables\n(median household income, median home value, and per capita\nincome). A median or per-person value from any other table is\nadded up like a count. Counts, medians, per-person values, and\nfive rates are returned with a margin of error at a chosen\nconfidence level, 90 percent by default, and with a record of\nthe settings, inputs, and package versions behind the run. The\nfive rates are the poverty rate, the shares of households\nreceiving Supplemental Nutrition Assistance Program (SNAP)\nbenefits and Supplemental Security Income, the unemployment\nrate, and the labor force participation rate. The margins of\nerror of counts and rates use the approximation formulas in\nchapter 8 of U.S. Census Bureau (2020) \"Understanding and Using\nAmerican Community Survey Data: What All Data Users Need to\nKnow\"\n<https://www.census.gov/programs-surveys/acs/library/handbooks/general.html>.\nFor a count the formula for a sum is applied to the weighted\ntract estimates, with the weights treated as fixed. For a rate\nthe default is the formula for a ratio. Its margin of error is\nat least as wide as that of the formula for a proportion, which\nthe handbook gives for ratios whose numerator is part of the\ndenominator, as it is in all five rates. The margins of error\nof medians and per-person values are an approximation made by\nthe package.",
  "License": "MIT + file LICENSE",
  "Copyright": "see file COPYRIGHTS",
  "Encoding": "UTF-8",
  "Language": "en-US",
  "LazyData": "true",
  "VignetteBuilder": "knitr, rmarkdown",
  "Config/Needs/coverage": "covr",
  "Config/Needs/website": "pkgdown",
  "Config/testthat/edition": "3",
  "URL": "https://github.com/joonho112/catchmentACS,\nhttps://joonho112.github.io/catchmentACS/",
  "BugReports": "https://github.com/joonho112/catchmentACS/issues",
  "Roxygen": "list(markdown = TRUE)",
  "Config/roxygen2/version": "8.1.0",
  "Config/pak/sysreqs": "libabsl-dev cmake libgdal-dev gdal-bin libgeos-dev\nlibicu-dev libxml2-dev libssl-dev libproj-dev libsqlite3-dev\nlibudunits2-dev libx11-dev",
  "Repository": "https://joonho112.r-universe.dev",
  "Date/Publication": "2026-09-24 14:30:27 UTC",
  "RemoteUrl": "https://github.com/joonho112/catchmentacs",
  "RemoteRef": "HEAD",
  "RemoteSha": "42dcf3848066cee2691dbc863a4d6de021c10f0a",
  "NeedsCompilation": "no",
  "Packaged": {
    "Date": "2026-10-06 11:39:43 UTC",
    "User": "root"
  },
  "Author": "JoonHo Lee [aut, cre, cph] (ORCID:\n<https://orcid.org/0009-0006-4019-8703>)",
  "Maintainer": "JoonHo Lee <jlee296@ua.edu>",
  "_user": "joonho112",
  "_type": "src",
  "_file": "catchmentACS_0.6.0.tar.gz",
  "_fileid": "https://r2.ropensci.org/e05d26234b749a9d83a7352ee069bc962da236a5a85e6b9950e325b5b75d107f",
  "_filesize": 2520711,
  "_sha256": "e05d26234b749a9d83a7352ee069bc962da236a5a85e6b9950e325b5b75d107f",
  "_expires": "2027-01-14T11:46:42.000Z",
  "_created": "2026-10-06T11:39:43.000Z",
  "_published": "2026-10-06T11:46:44.612Z",
  "_jobs": [
    {
      "job": 112250057197,
      "time": 298,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "11410827105"
    },
    {
      "job": 112250057295,
      "time": 228,
      "config": "linux-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11410552017"
    },
    {
      "job": 112250057292,
      "time": 307,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "11410567214"
    },
    {
      "job": 112250057164,
      "time": 355,
      "config": "macos-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11411111757"
    },
    {
      "job": 112248499687,
      "time": 253,
      "config": "source",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11410216292"
    },
    {
      "job": 112250057041,
      "time": 126,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "11409876706"
    },
    {
      "job": 112250057181,
      "time": 233,
      "config": "windows-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "11410681856"
    },
    {
      "job": 112250057220,
      "time": 167,
      "config": "windows-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "11410511993"
    },
    {
      "job": 112250057175,
      "time": 180,
      "config": "windows-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11409846952"
    }
  ],
  "_host": "GitHub-Actions",
  "_buildurl": "https://github.com/r-universe/joonho112/actions/runs/37457438073",
  "_status": "success",
  "_upstream": "https://github.com/joonho112/catchmentacs",
  "_commit": {
    "id": "42dcf3848066cee2691dbc863a4d6de021c10f0a",
    "author": "joonho112 <jlee296@ua.edu>",
    "committer": "joonho112 <jlee296@ua.edu>",
    "message": "Update cran-comments.md with the checks before submission\n\nThe test environments now list win-builder, mac builder, and R-hub, and\nthe spelling note is described as it appears on win-builder.\n",
    "time": 1790260227
  },
  "_maintainer": {
    "name": "JoonHo Lee",
    "email": "jlee296@ua.edu",
    "login": "joonho112",
    "description": "",
    "uuid": 8888484,
    "orcid": "0009-0006-4019-8703"
  },
  "_distro": "resolute",
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 4.1.0",
      "role": "Depends"
    },
    {
      "package": "cli",
      "role": "Imports"
    },
    {
      "package": "digest",
      "role": "Imports"
    },
    {
      "package": "dplyr",
      "role": "Imports"
    },
    {
      "package": "httr2",
      "role": "Imports"
    },
    {
      "package": "jsonlite",
      "role": "Imports"
    },
    {
      "package": "rlang",
      "role": "Imports"
    },
    {
      "package": "sf",
      "version": ">= 1.0-12",
      "role": "Imports"
    },
    {
      "package": "tibble",
      "role": "Imports"
    },
    {
      "package": "tidycensus",
      "version": ">= 1.6",
      "role": "Imports"
    },
    {
      "package": "tidyr",
      "role": "Imports"
    },
    {
      "package": "tigris",
      "role": "Imports"
    },
    {
      "package": "classInt",
      "role": "Suggests"
    },
    {
      "package": "htmltools",
      "role": "Suggests"
    },
    {
      "package": "knitr",
      "version": ">= 1.35",
      "role": "Suggests"
    },
    {
      "package": "leaflet",
      "role": "Suggests"
    },
    {
      "package": "openrouteservice",
      "role": "Suggests"
    },
    {
      "package": "osrm",
      "version": ">= 4.0",
      "role": "Suggests"
    },
    {
      "package": "rmarkdown",
      "role": "Suggests"
    },
    {
      "package": "testthat",
      "version": ">= 3.0.0",
      "role": "Suggests"
    },
    {
      "package": "withr",
      "role": "Suggests"
    }
  ],
  "_owner": "joonho112",
  "_selfowned": true,
  "_usedby": 0,
  "_updates": [
    {
      "week": "2026-39",
      "n": 8
    }
  ],
  "_tags": [],
  "_stars": 0,
  "_contributors": [
    {
      "user": "joonho112",
      "count": 8,
      "uuid": 8888484
    }
  ],
  "_userbio": {
    "uuid": 8888484,
    "type": "user",
    "name": "JoonHo Lee",
    "followers": 17
  },
  "_downloads": {
    "count": 0,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/catchmentACS"
  },
  "_devurl": "https://github.com/joonho112/catchmentacs",
  "_pkgdown": "https://joonho112.github.io/catchmentACS/",
  "_rbuild": "4.6.1",
  "_assets": [
    "extra/catchmentACS.html",
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/manual.pdf",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md",
    "LICENSE"
  ],
  "_homeurl": "https://github.com/joonho112/catchmentacs",
  "_realowner": "joonho112",
  "_cranurl": true,
  "_releases": [
    {
      "version": "0.6.0",
      "date": "2026-10-06"
    }
  ],
  "_exports": [
    "cacs_acs_default_rates",
    "cacs_acs_prefetch",
    "cacs_acs_validate",
    "cacs_cache_dir",
    "cacs_cache_status",
    "cacs_capture_conditions",
    "cacs_clear_cache",
    "cacs_derive_rates",
    "cacs_describe",
    "cacs_get_cache_state",
    "cacs_intersect_weight",
    "cacs_isochrone",
    "cacs_moe_to_se",
    "cacs_plot_site_intersection",
    "cacs_plot_site_isochrone",
    "cacs_plot_site_pipeline",
    "cacs_plot_site_rates",
    "cacs_plot_site_weighted",
    "cacs_propagate_moe",
    "cacs_rings_to_cumulative",
    "cacs_run",
    "cacs_se_to_moe",
    "cacs_set_cache",
    "cacs_summary_as_markdown",
    "cacs_validate_iso",
    "cacs_validate_osrm_endpoint"
  ],
  "_datasets": [
    {
      "name": "cacs_acs_default_vars",
      "title": "ACS variable codes used by default",
      "object": "cacs_acs_default_vars",
      "class": [
        "character"
      ],
      "fields": [],
      "table": false,
      "tojson": true
    },
    {
      "name": "cacs_alabama_sites",
      "title": "Ten example sites near Alabama city centers",
      "object": "cacs_alabama_sites",
      "class": [
        "sf",
        "data.frame"
      ],
      "fields": [
        "site_id",
        "site_name",
        "county_fips",
        "region_label",
        "geometry"
      ],
      "rows": 10,
      "table": true,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "as_tibble.cacs_run_result",
      "title": "Convert the result of 'cacs_run()' to a plain tibble",
      "concept": [
        "result summaries"
      ],
      "topics": [
        "as_tibble.cacs_run_result"
      ]
    },
    {
      "page": "cacs_acs_default_rates",
      "title": "Numerator and denominator ACS codes of the five built-in rates",
      "concept": [
        "rates and margins of error"
      ],
      "topics": [
        "cacs_acs_default_rates"
      ]
    },
    {
      "page": "cacs_acs_default_vars",
      "title": "ACS variable codes used by default",
      "topics": [
        "cacs_acs_default_vars"
      ]
    },
    {
      "page": "cacs_acs_prefetch",
      "title": "Download ACS estimates for the census tracts of one state",
      "concept": [
        "steps of the calculation"
      ],
      "topics": [
        "cacs_acs_prefetch"
      ]
    },
    {
      "page": "cacs_acs_validate",
      "title": "Check the form of ACS data for census tracts",
      "concept": [
        "validation and conditions"
      ],
      "topics": [
        "cacs_acs_validate"
      ]
    },
    {
      "page": "cacs_alabama_sites",
      "title": "Ten example sites near Alabama city centers",
      "topics": [
        "cacs_alabama_sites"
      ]
    },
    {
      "page": "cacs_cache_dir",
      "title": "Get the path of the cache folder",
      "concept": [
        "cache and configuration"
      ],
      "topics": [
        "cacs_cache_dir"
      ]
    },
    {
      "page": "cacs_cache_status",
      "title": "Summarize the files in the cache folder",
      "concept": [
        "cache and configuration"
      ],
      "topics": [
        "cacs_cache_status"
      ]
    },
    {
      "page": "cacs_capture_conditions",
      "title": "Capture the package's messages and warnings in a table",
      "concept": [
        "validation and conditions"
      ],
      "topics": [
        "cacs_capture_conditions"
      ]
    },
    {
      "page": "cacs_clear_cache",
      "title": "Delete saved results from the cache folder",
      "concept": [
        "cache and configuration"
      ],
      "topics": [
        "cacs_clear_cache"
      ]
    },
    {
      "page": "cacs_derive_rates",
      "title": "Compute rates and their margins of error for drive-time areas",
      "concept": [
        "steps of the calculation"
      ],
      "topics": [
        "cacs_derive_rates"
      ]
    },
    {
      "page": "cacs_describe",
      "title": "Describe how a result was produced",
      "concept": [
        "result summaries"
      ],
      "topics": [
        "cacs_describe",
        "print.cacs_description"
      ]
    },
    {
      "page": "cacs_get_cache_state",
      "title": "Show the cache settings and how often saved results were used",
      "concept": [
        "cache and configuration"
      ],
      "topics": [
        "cacs_get_cache_state"
      ]
    },
    {
      "page": "cacs_intersect_weight",
      "title": "Aggregate ACS tract estimates to drive-time areas by area weighting",
      "concept": [
        "steps of the calculation"
      ],
      "topics": [
        "cacs_intersect_weight"
      ]
    },
    {
      "page": "cacs_isochrone",
      "title": "Build drive-time areas around sites with a routing service",
      "concept": [
        "steps of the calculation"
      ],
      "topics": [
        "cacs_isochrone"
      ]
    },
    {
      "page": "cacs_moe_to_se",
      "title": "Convert a margin of error to a standard error",
      "concept": [
        "rates and margins of error"
      ],
      "topics": [
        "cacs_moe_to_se"
      ]
    },
    {
      "page": "cacs_plot_site_intersection",
      "title": "Map the tracts that overlap a drive-time area (map 2 of 4)",
      "concept": [
        "maps of one site"
      ],
      "topics": [
        "cacs_plot_site_intersection"
      ]
    },
    {
      "page": "cacs_plot_site_isochrone",
      "title": "Map a site and its drive-time areas (map 1 of 4)",
      "concept": [
        "maps of one site"
      ],
      "topics": [
        "cacs_plot_site_isochrone"
      ]
    },
    {
      "page": "cacs_plot_site_pipeline",
      "title": "Build all four maps for one site",
      "concept": [
        "maps of one site"
      ],
      "topics": [
        "cacs_plot_site_pipeline"
      ]
    },
    {
      "page": "cacs_plot_site_rates",
      "title": "Map a site with its rates and margins of error (map 4 of 4)",
      "concept": [
        "maps of one site"
      ],
      "topics": [
        "cacs_plot_site_rates"
      ]
    },
    {
      "page": "cacs_plot_site_weighted",
      "title": "Map an ACS variable by tract in a drive-time area (map 3 of 4)",
      "concept": [
        "maps of one site"
      ],
      "topics": [
        "cacs_plot_site_weighted"
      ]
    },
    {
      "page": "cacs_propagate_moe",
      "title": "Compute margins of error for drive-time area estimates",
      "concept": [
        "steps of the calculation"
      ],
      "topics": [
        "cacs_propagate_moe"
      ]
    },
    {
      "page": "cacs_rings_to_cumulative",
      "title": "Combine drive-time bands into cumulative drive-time areas",
      "topics": [
        "cacs_rings_to_cumulative"
      ]
    },
    {
      "page": "cacs_run",
      "title": "Compute ACS estimates for drive-time areas around sites",
      "concept": [
        "steps of the calculation"
      ],
      "topics": [
        "cacs_run"
      ]
    },
    {
      "page": "cacs_se_to_moe",
      "title": "Convert a standard error to a margin of error",
      "concept": [
        "rates and margins of error"
      ],
      "topics": [
        "cacs_se_to_moe"
      ]
    },
    {
      "page": "cacs_set_cache",
      "title": "Turn the cache on or off",
      "concept": [
        "cache and configuration"
      ],
      "topics": [
        "cacs_set_cache"
      ]
    },
    {
      "page": "cacs_summary_as_markdown",
      "title": "Format a summary table as a Markdown table",
      "concept": [
        "result summaries"
      ],
      "topics": [
        "cacs_summary_as_markdown"
      ]
    },
    {
      "page": "cacs_validate_iso",
      "title": "Check drive-time areas and list the problems found",
      "concept": [
        "validation and conditions"
      ],
      "topics": [
        "cacs_validate_iso"
      ]
    },
    {
      "page": "cacs_validate_osrm_endpoint",
      "title": "Check whether an OSRM server answers a routing request",
      "concept": [
        "validation and conditions"
      ],
      "topics": [
        "cacs_validate_osrm_endpoint"
      ]
    },
    {
      "page": "catchmentACS-conditions",
      "title": "Condition classes for messages, warnings, and errors",
      "concept": [
        "validation and conditions"
      ],
      "topics": [
        "catchmentACS-conditions",
        "catchmentACS_condition",
        "catchmentACS_error",
        "catchmentACS_message",
        "catchmentACS_warning"
      ]
    },
    {
      "page": "format.cacs_site_plot_pipeline",
      "title": "Describe the four maps in one line",
      "concept": [
        "maps of one site"
      ],
      "topics": [
        "format.cacs_site_plot_pipeline"
      ]
    },
    {
      "page": "group_by.cacs_run_result",
      "title": "Group the result of 'cacs_run()'",
      "concept": [
        "result summaries"
      ],
      "topics": [
        "group_by.cacs_run_result"
      ]
    },
    {
      "page": "print.cacs_run_result",
      "title": "Print the result of 'cacs_run()'",
      "concept": [
        "result summaries"
      ],
      "topics": [
        "print.cacs_run_result"
      ]
    },
    {
      "page": "print.cacs_run_summary",
      "title": "Print the summary of a 'cacs_run()' result",
      "concept": [
        "result summaries"
      ],
      "topics": [
        "print.cacs_run_summary"
      ]
    },
    {
      "page": "print.cacs_site_plot_pipeline",
      "title": "Print a summary of the four maps",
      "concept": [
        "maps of one site"
      ],
      "topics": [
        "print.cacs_site_plot_pipeline"
      ]
    },
    {
      "page": "summary.cacs_run_result",
      "title": "Summarize the result of 'cacs_run()'",
      "concept": [
        "result summaries"
      ],
      "topics": [
        "summary.cacs_run_result"
      ]
    }
  ],
  "_pkglogo": "https://github.com/joonho112/catchmentacs/raw/HEAD/man/figures/logo.svg",
  "_readme": "https://github.com/joonho112/catchmentacs/raw/HEAD/README.md",
  "_rundeps": [
    "askpass",
    "bit",
    "bit64",
    "class",
    "classInt",
    "cli",
    "clipr",
    "cpp11",
    "crayon",
    "curl",
    "DBI",
    "digest",
    "dplyr",
    "e1071",
    "generics",
    "glue",
    "hms",
    "httr",
    "httr2",
    "jsonlite",
    "KernSmooth",
    "lifecycle",
    "magrittr",
    "mime",
    "openssl",
    "pillar",
    "pkgconfig",
    "prettyunits",
    "progress",
    "proxy",
    "purrr",
    "R6",
    "rappdirs",
    "Rcpp",
    "readr",
    "rlang",
    "rvest",
    "s2",
    "selectr",
    "sf",
    "stringi",
    "stringr",
    "sys",
    "tibble",
    "tidycensus",
    "tidyr",
    "tidyselect",
    "tigris",
    "tzdb",
    "units",
    "utf8",
    "uuid",
    "vctrs",
    "vroom",
    "withr",
    "wk",
    "xml2"
  ],
  "_vignettes": [
    {
      "source": "alabama-tutorial.Rmd",
      "filename": "alabama-tutorial.html",
      "title": "A worked example with Alabama Pre-K sites",
      "engine": "knitr::rmarkdown",
      "headings": [
        "The sites and the example data",
        "The five steps, one at a time",
        "Steps 1 and 2: downloading and routing",
        "Step 3: overlapping tracts and their weights",
        "Step 4: margins of error",
        "Step 5: rates",
        "The same result in one call",
        "Tables for a report",
        "A plain table with the main columns",
        "Rates by site and drive time",
        "Sites ranked by a rate",
        "One site at three drive times",
        "A table to save",
        "A map",
        "Running on your own sites",
        "References"
      ],
      "created": "2026-09-24 00:44:50",
      "modified": "2026-09-24 00:44:50",
      "commits": 1
    },
    {
      "source": "theory-spatial-aggregation.Rmd",
      "filename": "theory-spatial-aggregation.html",
      "title": "Area weighting of tract estimates",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Area weighting and its assumption",
        "Coverage weights and area shares",
        "How the package chooses the weights",
        "Measuring the areas",
        "The calculation for each site",
        "Recomputing the weights for one site",
        "References"
      ],
      "created": "2026-09-24 00:44:50",
      "modified": "2026-09-24 00:44:50",
      "commits": 1
    },
    {
      "source": "getting-started.Rmd",
      "filename": "getting-started.html",
      "title": "Getting started with catchmentACS",
      "engine": "knitr::rmarkdown",
      "headings": [
        "What catchmentACS does",
        "Install",
        "A first run on the example data",
        "Reading the result",
        "A map of the drive-time areas"
      ],
      "created": "2026-09-24 00:44:50",
      "modified": "2026-09-24 00:44:50",
      "commits": 1
    },
    {
      "source": "methodology.Rmd",
      "filename": "methodology.html",
      "title": "How the estimates are computed",
      "engine": "knitr::rmarkdown",
      "headings": [
        "From tract estimates to drive-time areas",
        "The symbols, the weights, and the estimates",
        "Kinds of estimate and their weights",
        "A worked example with both weights",
        "Margins of error",
        "Limitations",
        "References"
      ],
      "created": "2026-09-24 00:44:50",
      "modified": "2026-09-24 00:44:50",
      "commits": 1
    },
    {
      "source": "visual-walkthrough.Rmd",
      "filename": "visual-walkthrough.html",
      "title": "Mapping each step for one Birmingham site",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Stage 1: the drive-time area",
        "Stage 2: the tracts and their weights",
        "Stage 3: one ACS variable",
        "Stage 4: the five rates",
        "All four maps in one call"
      ],
      "created": "2026-09-24 00:44:50",
      "modified": "2026-09-24 00:44:50",
      "commits": 1
    },
    {
      "source": "theory-moe-propagation.Rmd",
      "filename": "theory-moe-propagation.html",
      "title": "Margins of error for combined estimates",
      "engine": "knitr::rmarkdown",
      "headings": [
        "What the margins of error assume",
        "Standard errors and the 90 percent level",
        "Counts, medians, and per-person values",
        "Rates: the proportion and ratio formulas",
        "A negative value under the square root",
        "Zero denominators and missing values",
        "A count: its margin of error from the tract margins",
        "A rate that falls back to the ratio formula",
        "References"
      ],
      "created": "2026-09-24 00:44:50",
      "modified": "2026-09-24 00:44:50",
      "commits": 1
    },
    {
      "source": "theory-derived-rates.Rmd",
      "filename": "theory-derived-rates.html",
      "title": "Rates and their margins of error",
      "engine": "knitr::rmarkdown",
      "headings": [
        "A rate is the ratio of two weighted counts",
        "The five rates",
        "Two formulas for the margin of error of a rate",
        "The formula used for each rate",
        "Two rates computed by hand",
        "snap_rate with the ratio formula",
        "labor_force_participation with the proportion formula",
        "All five rates of the example",
        "A rate whose numerator is missing",
        "References"
      ],
      "created": "2026-09-24 00:44:50",
      "modified": "2026-09-24 00:44:50",
      "commits": 1
    },
    {
      "source": "providers.Rmd",
      "filename": "providers.html",
      "title": "Routing services, API keys, and offline use",
      "engine": "knitr::rmarkdown",
      "headings": [
        "What each service needs",
        "Census API key",
        "OSRM",
        "openrouteservice",
        "Supplying drive-time areas and ACS estimates",
        "What is not implemented yet",
        "The cache",
        "A run that contacts both services"
      ],
      "created": "2026-09-24 00:44:50",
      "modified": "2026-09-24 00:44:50",
      "commits": 1
    },
    {
      "source": "porting-v03-to-v04.Rmd",
      "filename": "porting-v03-to-v04.html",
      "title": "Updating code written for version 0.3",
      "engine": "knitr::rmarkdown",
      "headings": [
        "The value of the expression in cacs_capture_conditions()",
        "Drive-time areas built on the public OSRM server",
        "The isochrone column of the list-column form",
        "The row order of as_tibble()",
        "Rates by site in summary(), print(), and Markdown tables",
        "Values in rates_breakdown before 0.4"
      ],
      "created": "2026-09-24 00:44:50",
      "modified": "2026-09-24 00:44:50",
      "commits": 1
    },
    {
      "source": "porting-v04-to-v05.Rmd",
      "filename": "porting-v04-to-v05.html",
      "title": "Updating code written for version 0.4",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Medians and per-person values",
        "The year argument",
        "Saved ACS estimates and the Census API key",
        "Sites as a plain data frame",
        "The isochrone column when cacs_run() builds the areas",
        "Choices that are not implemented"
      ],
      "created": "2026-09-24 00:44:50",
      "modified": "2026-09-24 00:44:50",
      "commits": 1
    },
    {
      "source": "porting-v01-to-v03.Rmd",
      "filename": "porting-v01-to-v03.html",
      "title": "Updating code written for versions 0.1 and 0.2",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Summary of changes",
        "Drive-time areas saved with versions 0.1 and 0.2",
        "Running an older analysis again",
        "Building drive-time areas again",
        "Saved results in the cache"
      ],
      "created": "2026-09-24 00:44:50",
      "modified": "2026-09-24 02:53:51",
      "commits": 2
    }
  ],
  "_score": 4.740362689494244,
  "_indexed": true,
  "_nocasepkg": "catchmentacs",
  "_universes": [
    "joonho112"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "0.6.0",
      "date": "2026-10-06T11:43:02.000Z",
      "distro": "resolute",
      "commit": "42dcf3848066cee2691dbc863a4d6de021c10f0a",
      "fileid": "https://r2.ropensci.org/0848b947f47d1058d906ff781c30c4b355c48afc1fc1ced4b9cf08634dce399c",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/joonho112/actions/runs/37457438073"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "0.6.0",
      "date": "2026-10-06T11:42:20.000Z",
      "distro": "resolute",
      "commit": "42dcf3848066cee2691dbc863a4d6de021c10f0a",
      "fileid": "https://r2.ropensci.org/ef04f10da78f5ace023cf43817c5a2ce2e5bc4f922cb110b4ec6bf6a86d5b843",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/joonho112/actions/runs/37457438073"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "0.6.0",
      "date": "2026-10-06T11:42:50.000Z",
      "commit": "42dcf3848066cee2691dbc863a4d6de021c10f0a",
      "fileid": "https://r2.ropensci.org/02a66d9c88403d6568e85b05bd66e122b2a12644cd8caf33dd034bb9d6be645a",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/joonho112/actions/runs/37457438073"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "0.6.0",
      "date": "2026-10-06T11:43:06.000Z",
      "commit": "42dcf3848066cee2691dbc863a4d6de021c10f0a",
      "fileid": "https://r2.ropensci.org/86e1aba546628b3730b5b8a472dec8a9ac0a29cf65b6386c19989a1f813b4f0c",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/joonho112/actions/runs/37457438073"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "0.6.0",
      "date": "2026-10-06T11:42:13.000Z",
      "commit": "42dcf3848066cee2691dbc863a4d6de021c10f0a",
      "fileid": "https://r2.ropensci.org/119f5914f6d1bb55ea3549e36b6db2eb0ec79ee977dd8f1ce38422decb06f267",
      "status": "success",
      "buildurl": "https://github.com/r-universe/joonho112/actions/runs/37457438073"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "0.6.0",
      "date": "2026-10-06T11:41:09.000Z",
      "commit": "42dcf3848066cee2691dbc863a4d6de021c10f0a",
      "fileid": "https://r2.ropensci.org/607f3103e534d70820234b494e5602cd86852fdb739147de2ed715b1bc2df459",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/joonho112/actions/runs/37457438073"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "0.6.0",
      "date": "2026-10-06T11:41:11.000Z",
      "commit": "42dcf3848066cee2691dbc863a4d6de021c10f0a",
      "fileid": "https://r2.ropensci.org/04c4493ae445bc481a8554afb94592a4d7b0d15cd03d8544ab30689c1b69e898",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/joonho112/actions/runs/37457438073"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "0.6.0",
      "date": "2026-10-06T11:41:12.000Z",
      "commit": "42dcf3848066cee2691dbc863a4d6de021c10f0a",
      "fileid": "https://r2.ropensci.org/3d800ef4a14d99007eb3a4c419d43633e23600aa7d2890fe193ae666b7500c5a",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/joonho112/actions/runs/37457438073"
    }
  ]
}