detect_straightlining

Computes the longest run of identical consecutive item responses per
respondent (the longstring index; cf. the CRAN package
careless) and flags respondents whose run meets or exceeds
<code>max_run</code>. The computation is vectorized over respondents.

Rule-driven, auditable cleaning of survey and assessment
response data, implementing the WeianData Detect-Execute-Report
workflow. Provides a multi-format, multi-encoding input layer
(CSV, 'Excel', 'SPSS', 'Stata', 'SAS', Parquet, JSON), the
dcc_data container with a provenance chain, level-0 structural
diagnostics, five built-in response-quality detectors (missing
items, straight-lining, response time, trap items, score
anomalies), a declarative YAML rule engine, an execution engine
with a cell-level audit log, answer-key scoring, multi-form to
master item bank mapping, a normalized report model rendered as bilingual
staff workbooks and HTML, complete statistical bundles, and versioned
machine JSON/JSONL with findings-to-changes reconciliation,
cell-level lineage tracing, and
manifest-based one-command reproduction. Includes a protected bilingual
strict project workbook and matching JSON contract with cell-addressed
validation, non-mutating preflight, preview-first execution, and localized
staff guidance. All formally supported input backends install with the
package; PDF is optional rather than a fixed report output.

Kunxiang Ma

Data Cleaning Center for Survey and Assessment Data

WEIAN DATA TECH (Beijing) Co., Ltd. 

detect_straightlining function

<dl><dt>x</dt>
<dd>A <code>dcc_data</code> object or data.frame.</dd>
<dt>items</dt>
<dd>Character vector of item column names, in presentation
order.</dd>
<dt>max_run</dt>
<dd>Minimum run length considered straight-lining
(default 10).</dd>
<dt>id_var</dt>
<dd>Name of the record-id column, or <code>NULL</code> for row
numbers.</dd>
<dt>severity</dt>
<dd>Severity assigned to findings (default <code>"warn"</code>).</dd>
<dt>na_breaks_run</dt>
<dd>Should a missing response break a run?
(default <code>TRUE</code>).</dd></dl>

Arguments

Detect straight-lining (longstring) — detect_straightlining

<dl>

<dt>x</dt>
<dd>A <code>dcc_data</code> object or data.frame.</dd>


<dt>items</dt>
<dd>Character vector of item column names, in presentation
order.</dd>


<dt>max_run</dt>
<dd>Minimum run length considered straight-lining
(default 10).</dd>


<dt>id_var</dt>
<dd>Name of the record-id column, or <code>NULL</code> for row
numbers.</dd>


<dt>severity</dt>
<dd>Severity assigned to findings (default <code>"warn"</code>).</dd>


<dt>na_breaks_run</dt>
<dd>Should a missing response break a run?
(default <code>TRUE</code>).</dd>

</dl>

detect_straightlining: Detect straight-lining (longstring)

Description

Usage

Value

Arguments

Examples