generate_fake_posixct_column

Create synthetic timestamps either by mimicking an existing POSIXct vector
(using its range and NA rate) or by sampling uniformly between <code>start</code> and <code>end</code>.

Generate privacy-preserving synthetic datasets that mirror structure, types, factor levels, and missingness; export bundles for 'LLM' workflows (data plus 'JSON' schema and guidance); and build fake data directly from 'SQL' database tables without reading real rows. Methods are related to approaches in Nowok, Raab and Dibben (2016) <doi:10.32614/RJ-2016-019> and the foundation-model overview by Bommasani et al. (2021) <doi:10.48550/arXiv.2108.07258>.

Zobaer Ahmed

FakeDataR

Privacy-Preserving Synthetic Data for 'LLM' Workflows

generate_fake_posixct_column function

<dl><dt>like</dt>
<dd>Optional POSIXct vector to mimic. If supplied, <code>n</code> defaults to <code>length(like)</code>,
the output range matches <code>range(like, na.rm = TRUE)</code>, and the NA rate is copied unless
you override with <code>na_prop</code>.</dd>
<dt>n</dt>
<dd>Number of rows to generate. Required when <code>like</code> is <code>NULL</code>.</dd>
<dt>start, end</dt>
<dd>Optional POSIXct bounds to sample between when <code>like</code> is <code>NULL</code>.</dd>
<dt>tz</dt>
<dd>Timezone to use if <code>like</code> has no <code>tzone</code> (default "UTC").</dd>
<dt>na_prop</dt>
<dd>Optional NA proportion to enforce in the output (0–1). If <code>NULL</code> and
<code>like</code> is provided, it copies the NA rate from <code>like</code>. If <code>like</code> is <code>NULL</code>, defaults to 0.</dd></dl>

Arguments

Generate a Fake POSIXct Column — generate_fake_posixct_column

<dl>

<dt>like</dt>
<dd>Optional POSIXct vector to mimic. If supplied, <code>n</code> defaults to <code>length(like)</code>,
the output range matches <code>range(like, na.rm = TRUE)</code>, and the NA rate is copied unless
you override with <code>na_prop</code>.</dd>


<dt>n</dt>
<dd>Number of rows to generate. Required when <code>like</code> is <code>NULL</code>.</dd>


<dt>start, end</dt>
<dd>Optional POSIXct bounds to sample between when <code>like</code> is <code>NULL</code>.</dd>


<dt>tz</dt>
<dd>Timezone to use if <code>like</code> has no <code>tzone</code> (default "UTC").</dd>


<dt>na_prop</dt>
<dd>Optional NA proportion to enforce in the output (0–1). If <code>NULL</code> and
<code>like</code> is provided, it copies the NA rate from <code>like</code>. If <code>like</code> is <code>NULL</code>, defaults to 0.</dd>

</dl>

generate_fake_posixct_column: Generate a Fake POSIXct Column

Description

Usage

Value

Arguments