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decimal - Exact Arbitrary-Precision Decimal Vectors

Arbitrary-precision vectors with an exact decimal representation, avoiding the rounding surprises of binary floating point. Built on the 'mpdecimal' C library, arithmetic is governed by an explicit decimal context controlling precision, rounding, and signaling, and vectors integrate with 'vctrs' for use in data frames, 'tibble' objects, summaries, and common numeric workflows. Missing values, signed zeros, infinities, and not-a-number values are supported throughout. The arithmetic model follows Cowlishaw (2009) "General Decimal Arithmetic" <https://speleotrove.com/decimal/decarith.html>.

Last updated

5.56 score 4 stars 7 scripts 432 downloads

imf.data - An Interface to IMF (International Monetary Fund) Data

Provides low-level access to the International Monetary Fund Statistical Data and Metadata eXchange ('SDMX') 3.0 API, available at <https://data.imf.org/>, and a concise workflow for discovering datasets, inspecting dimensions, and downloading observations as tidy data frames.

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5.31 score 3 stars 17 scripts 427 downloads

zuxml - Small XML Parser and Document Tree

Reads, navigates, and writes XML documents using a bundled copy of the 'Expat' parser (<https://libexpat.github.io/>), so that no system XML library is required. Documents are parsed into a faithful immutable tree exposed through a small vectorized navigation interface. Parsing is strict by default: document type declarations are rejected, external entity resolution is not compiled in, and configurable limits bound nesting depth and memory use. A registered C interface allows other packages to parse XML without linking against the parser themselves, and to feed it incrementally so that a large document need not be held in memory all at once.

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5.02 score 1 stars 8 scripts

zuhtml - Parse 'HTML' with a Bundled 'Gumbo' Parser

Parses real-world 'HTML' with a bundled copy of the 'Gumbo' parser (<https://codeberg.org/gumbo-parser/gumbo-parser>), which follows the 'WHATWG' parsing algorithm, so that no system library is required. Documents become immutable trees navigated with a documented subset of 'CSS' selectors. Attributes, text, lists, tables, links, forms and page metadata ('JSON-LD', microdata) are extracted into ordinary character vectors, lists and data frames, and nodes convert to 'Markdown'. Input is a string, raw bytes, a file, a URL or a connection, and raw input is decoded as browsers decode it, from a byte-order mark or a '<meta>' declaration. Parsing is bounded by limits on input size, native memory and nesting depth.

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4.90 score 9 scripts 324 downloads

zucbor - Deterministic and Secure CBOR Encoding and Decoding

Encodes R values as Concise Binary Object Representation (CBOR, RFC 8949; Bormann and Hoffman (2020) <doi:10.17487/RFC8949>) and decodes CBOR into ordinary R vectors and lists. Decoding checks the whole input against configurable depth, size and item limits before any R object is built, so untrusted input from network peers and devices cannot drive large allocations. Encoding is deterministic: identical R objects always produce identical bytes. Uses a bundled copy of the 'TinyCBOR' library (<https://github.com/intel/tinycbor>), so no system library is required.

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4.70 score 9 scripts 300 downloads

zufft - Fast Fourier, Cosine and Sine Transforms

Computes discrete Fourier transforms (complex, real-to-complex and complex-to-real) and discrete cosine and sine transforms of types one to four over any axes of an array, with the fast Fourier transform (FFT) code of 'ducc0' (<https://github.com/mreineck/ducc>) bundled in the BSD-licensed subset that 'SciPy' uses. Transforms of any length run in O(n log n) time, real input uses true real transforms, and several threads can share one transform.

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cpp

4.40 score 1 stars 8 scripts 384 downloads

zuexact - Exactly Rounded Sums, Means and Dot Products

Sums of double-precision numbers computed exactly and rounded once, so the result is the correctly rounded true sum and does not depend on the order of the elements, the platform, or whether R was built with long doubles. Built on the small and large superaccumulators of Neal (2015) <doi:10.48550/arXiv.1505.05571>. Provides exactly rounded sums, means, cumulative sums, dot products and norms, row, column and grouped sums, accumulators that can be built in pieces and merged across processes, and a registered 'C' interface for other packages.

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4.30 score 4 scripts 224 downloads

zufast - Fast Portable 'C' Primitives for Parsing and Formatting Data

A header-only library of small, fast, portable 'C99' primitives for converting external text and bytes into native values and back: correctly rounded number parsing (from 'fast_float', through its 'C' port 'ffc.h'), shortest round-trip number formatting (from 'Ryu'), ISO 8601 dates and timestamps, booleans, universally unique identifiers (UUIDs), hexadecimal and Base64, 'XXH3' hashing (from 'xxHash'), half-precision floats, endian helpers and UTF-8 validation. Other packages use it through 'LinkingTo' alone; the 'R' functions exist to test, benchmark and demonstrate the 'C' layer.

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4.30 score 5 scripts 155 downloads

zutoml - Read and Write 'TOML' Documents

Parses 'TOML' (Tom's Obvious Minimal Language) documents, versions 1.0.0 and 1.1.0 <https://toml.io/en/v1.1.0>, into ordinary R values, and writes R values as 'TOML'. Every 'TOML' type maps to one R type, including the four date and time types, and strings are never reinterpreted. Invalid documents are refused with the line and column at fault, under configurable size, depth, item and string limits, and output is deterministic. Both directions pass the 'toml-test' conformance suite <https://github.com/toml-lang/toml-test>. The parser and writer are written in C, with no system library required.

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4.18 score 5 scripts

openlineage - Create and Emit 'OpenLineage' Events

Construct and validate run events that follow the 'OpenLineage' specification <https://openlineage.io/>. Model run lifecycles, datasets, and extensible facets with protocol-aware 'R' objects. Serialize events into deterministic JavaScript Object Notation (JSON) while preserving wire field names. Deliver events synchronously over Hypertext Transfer Protocol (HTTP) with authentication and retries, or use offline transports for local development and testing.

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4.18 score 1 stars 3 scripts 193 downloads

azr - Credential Chain for Seamless 'OAuth 2.0' Authentication to 'Azure Services'

Implements a credential chain for 'Azure OAuth 2.0' authentication based on the package 'httr2''s 'OAuth' framework. Sequentially attempts authentication methods until one succeeds. During development allows interactive browser-based flows ('Device Code' and 'Auth Code' flows) and non-interactive flow ('Client Secret') in batch mode.

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4.02 score 1 stars 9 scripts 507 downloads

mdbx - Bindings to the 'libmdbx' Embedded Key-Value Store

Provides low-level bindings to 'libmdbx', a compact and fast transactional key-value store built on memory-mapped files (<https://libmdbx.dqdkfa.ru/>). Database environments, transactions, and byte-oriented read and write operations are exposed directly. The 'libmdbx' sources are bundled and compiled into the package, so no system library installation is required.

Last updated

cpp

3.85 score 2 stars 8 scripts 503 downloads

zukomp - Portable Byte Compression with a Pluggable Codec Registry

Compresses and decompresses raw vectors through a single codec-neutral interface backed by a runtime registry, so the set of available codecs is discovered rather than fixed at compile time. The 'DEFLATE' family ('gzip', 'zlib', and headerless 'DEFLATE'), 'Zstandard' and 'LZ4' (frame and block formats) are built in from vendored 'miniz', 'zstd' and 'lz4' sources, requiring no system compression library. Decompression enforces configurable output-size and expansion-ratio limits and reports failures through structured conditions. A registered C-callable interface lets other packages drive the codecs from C and register codecs of their own. The formats are specified in Deutsch (1996) <doi:10.17487/RFC1951>, Deutsch and Gailly (1996) <doi:10.17487/RFC1950>, Deutsch (1996) <doi:10.17487/RFC1952>, and Collet and Kucherawy (2021) <doi:10.17487/RFC8878>.

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3.54 score 6 scripts 220 downloads

qio - Read and Write 'Apache Parquet' Files

Read and write 'Apache Parquet' files. Whole files are read with a single call, and larger ones can be opened to inspect their schema and read selected columns, row groups, or batches. Built on the bundled C library 'carquet', with no required R package dependencies.

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zlib

3.54 score 8 scripts 341 downloads

zucrypt - Cryptography Without System Dependencies

Cryptographic functions over raw vectors, including message digests of in-memory data, files and connections, keyed-hash message authentication codes (HMAC), Advanced Encryption Standard (AES) encryption, constant-time comparison and hexadecimal encoding, backed by a bundled and pinned copy of the 'Mbed TLS' project's cryptography library, 'TF-PSA-Crypto' (<https://github.com/Mbed-TLS/TF-PSA-Crypto>). No system cryptographic library, 'Java' or 'Python' is required at install or run time. Algorithm names are matched exactly, and failures are reported as structured conditions. The same primitives, and secure erasure of native buffers, are published to other packages as a static archive and as a registered C interface, so that a package can call them from C without going through R.

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3.40 score 8 scripts 77 downloads

quak - Query 'Azure Data Lake Storage Gen2' with 'DuckDB'

Provides convenience utilities for using 'DuckDB' directly over datasets stored in 'Azure Data Lake Storage Gen2' (ADLS Gen2, 'abfss://'). Opens connections configured for Azure-backed 'Delta Lake' and 'Parquet' data, registers Azure credentials as 'DuckDB' secrets, and supports optional repository mirrors for restricted networks. Integrates well with 'DBI' for SQL workflows and with 'dplyr' and 'dbplyr' for lazy table queries.

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azure-storageduckdb

3.40 score 6 scripts 255 downloads

zujson - Lightweight JSON Parsing and Serialization

Converts between JSON text and ordinary R vectors and lists through a small, predictable set of functions, backed by vendored 'yyjson' <https://github.com/ibireme/yyjson> and requiring no system JSON library. Parsing accepts character, raw and file input and reports failures through structured conditions; serialization writes UTF-8 bytes suitable for use directly as an HTTP request body. The type mapping is deliberately narrow and fully documented, so what goes in and what comes out are both predictable.

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3.30 score 1 stars 1.0k downloads

zuyaml - Parse and Emit 'YAML' 1.2

Converts between 'YAML' 1.2 (<https://yaml.org/spec/1.2.2/>) and ordinary R objects using a bundled copy of the 'cyaml' C11 parser and emitter (<https://github.com/andrewmd5/cyaml>), so there is no system dependency and no runtime dependency beyond R itself. Ambiguous 'YAML' features are handled strictly and predictably: duplicate keys are refused by default, the 'YAML' 1.2 core schema is followed so that yes and no resolve as strings, and integers beyond double precision are preserved rather than silently rounded. A stream of documents and a sequence are different things, and the interface keeps them apart. Input size, nesting depth and the number of values materialised are all bounded, which makes the parser usable on untrusted input.

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3.30 score 1 stars 8 scripts 262 downloads

zucsv - Read CSV Files Using the 'zsv' Parser

Reads comma-separated and other delimited text files into base R data frames using the 'zsv' C parser <https://github.com/liquidaty/zsv> as its native backend. Handles quoted fields, embedded delimiters and newlines, escaped quotes, and both LF and CRLF line endings, and infers logical, integer, double, and character column types. Column types can also be given explicitly, in which case a value that cannot be converted is an error rather than a silently missing value. The 'zsv' sources are bundled, so there are no runtime dependencies.

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3.30 score 6 scripts

data.sketches - Probabilistic Streaming Data Sketches

Provides an interface to the 'Apache DataSketches' (<https://datasketches.apache.org/>) library of streaming algorithms for approximate analytics on data too large to hold or process exactly. Sketches are compact, mergeable summaries built in a single pass over a stream that answer queries such as approximate distinct counts, quantiles and ranks, frequent items and point-frequency estimates, weighted sampling, and set membership with mathematically proven error bounds. Implements Karnin-Lang-Liberty (KLL), Relative Error Quantiles (REQ), t-Digest, HyperLogLog (HLL), Compressed Probabilistic Counting (CPC), Theta, Frequent Items, Count-Min, Array of Doubles, Variance Optimal (VarOpt), Exact and Bounded Probabilistic Proportional-to-Size (EBPPS), and Bloom filter sketches, with native serialization for interoperability with other 'Apache DataSketches' implementations.

Last updated

cpp

3.30 score 2 scripts 355 downloads

agecrypt - File Encryption with the 'age' Format

An idiomatic R interface to the 'age' file encryption format (<https://age-encryption.org/v1>), backed by a vendored copy of the 'agec' C implementation (<https://git.sr.ht/~min/agec>). Encrypt and decrypt raw vectors, files, and strings for one or more X25519 recipients or with a passphrase, with optional ASCII armor. Cryptography is vendored and randomness is drawn from the operating system, so the package has no external library dependencies.

Last updated

3.18 score 3 scripts 345 downloads