isVocabularyWord — Test whether words are in a wordEmbedding or wordEncoding vocabulary.
isVocabularyWord(emb, words) and isVocabularyWord(enc, words) return logical masks for vocabulary membership.
Syntax
tf = isVocabularyWord(emb, words)
tf = isVocabularyWord(enc, words)
tf = isVocabularyWord(___, 'IgnoreCase', true)Inputs
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
embOrEnc | Any | Yes | — | wordEmbedding or wordEncoding object. |
words | Any | Yes | — | Words to test. |
NameValue | Any | Variadic | — | Name-value options: IgnoreCase. |
Returns
| Name | Type | Description |
|---|---|---|
tf | LogicalArray | Logical membership mask. |
Errors
| Identifier | When | Message |
|---|---|---|
RunMat:isVocabularyWord:InvalidInput | Inputs do not match a supported isVocabularyWord form. | isVocabularyWord received invalid input |
How isVocabularyWord works
- The first input must be a RunMat
wordEmbeddingorwordEncodingcompatibility object. wordsmay be a string scalar, string array, character vector, character matrix, or cell array of scalar text.- The output logical array preserves the input word container shape for string arrays and cell arrays. A character vector returns a scalar 1-by-1 logical array; a character matrix returns one row per input row.
isVocabularyWord(___, 'IgnoreCase', true)performs case-insensitive vocabulary lookup.
GPU memory and residency
isVocabularyWord reads host text/model metadata and returns a CPU logical array.
Example
Test Membership
enc = wordEncoding(["I" "love" "RunMat"]);
tf = isVocabularyWord(enc, ["RunMat" "MATLAB"])Expected output:
`tf` is `[true false]`.Using isVocabularyWord with coding agents
Open a RunMat example with live inputs, then ask the agent to explain how isVocabularyWord changes the result.
Run a small isVocabularyWord example, explain the result, then change one input and compare the output.
FAQ
Does this work for both embeddings and encodings?⌄
Yes. RunMat supports wordEmbedding objects from fastTextWordEmbedding, readWordEmbedding, or trainWordEmbedding, and wordEncoding objects from wordEncoding.
Does isVocabularyWord execute on the GPU?⌄
No. It is a host vocabulary lookup.
Related Strings functions
Text Analytics
addDependencyDetails · addEntityDetails · addLemmaDetails · addPartOfSpeechDetails · addSentenceDetails · addTypeDetails · bagOfNgrams · bagOfWords · cosineSimilarity · doc2sequence · encode · extractFileText · extractHTMLText · fastTextWordEmbedding · findElement · getAttribute · htmlTree · ind2word · normalizeWords · readWordEmbedding · removeLongWords · removeShortWords · removeStopWords · removeWords · stopWords · tokenDetails · tokenizedDocument · trainWordEmbedding · vaderSentimentScores · vec2word · word2ind · word2vec · wordEncoding · writeWordEmbedding
Transform
append · deblank · erase · eraseBetween · erasePunctuation · eraseURLs · extractAfter · extractBefore · extractBetween · insertAfter · insertBefore · join · lower · pad · replace · replaceBetween · reverse · split · splitlines · strcat · strip · strjoin · strjust · strrep · strsplit · strtrim · upper
Core
blanks · char · compose · convertCharsToStrings · convertContainedStringsToChars · convertStringsToChars · genvarname · int2str · isletter · isspace · isStringScalar · isstrprop · mat2str · native2unicode · newline · num2str · sprintf · sscanf · str2double · str2num · strcmp · strcmpi · string · string.empty · strings · strlength · strncmp · strncmpi · strtok · unicode2native
Search
contains · endsWith · matches · startsWith · strfind
Pattern
digitsPattern · lettersPattern · pattern · regexpPattern · textBoundary · wildcardPattern
Open-source implementation
Unlike proprietary runtimes, every RunMat function is open-source. Read exactly how isVocabularyWord is executed, line by line, in Rust.
- View the source for isVocabularyWord in Rust on GitHub
- Learn how the RunMat runtime works
- Found a bug? Open an issue with a minimal reproduction.
About RunMat
RunMat is an open-source runtime that executes MATLAB-syntax code blazing on any GPU. It is licensed under the Apache 2.0 license.
- RunMat automatically optimizes your math for GPU execution on Apple, Nvidia, and AMD hardware. No code changes needed. Simulations that took hours now take minutes.
- Start running code in seconds. RunMat runs in the browser, on the desktop, or from the CLI. No license server, no IT ticket.