is_panel_sorted

Internal function that checks if a data frame is sorted by id (grouped),
then by wave within each id. This is O(n) - just one pass through the data,
much cheaper than O(n log n) sorting.

internal

Provides an object type and associated tools for storing and
wrangling panel data. Implements several methods for creating regression
models that take advantage of the unique aspects of
panel data. Among other capabilities, automates the "within-between"
(also known as "between-within" and "hybrid") panel regression specification
that combines the desirable aspects of both fixed effects and random effects
econometric models and fits them as multilevel models
(Allison, 2009 <doi:10.4135/9781412993869.d33>;
Bell & Jones, 2015 <doi:10.1017/psrm.2014.7>). These models can also be
estimated via generalized estimating equations
(GEE; McNeish, 2019 <doi:10.1080/00273171.2019.1602504>) and Bayesian
estimation is (optionally) supported via 'Stan'.
Supports estimation of asymmetric effects models via first differences
(Allison, 2019 <doi:10.1177/2378023119826441>) as well as a generalized
linear model extension thereof using GEE.

Jacob A. Long

panelr

Regression Models and Utilities for Repeated Measures and Panel
Data

is_panel_sorted function

<dl><dt>x</dt>
<dd>A data frame</dd>
<dt>id</dt>
<dd>Name of the id column (string)</dd>
<dt>wave</dt>
<dd>Name of the wave column (string)</dd></dl>

Arguments

Check if panel data is properly sorted — is_panel_sorted

<dl>

<dt>x</dt>
<dd>A data frame</dd>


<dt>id</dt>
<dd>Name of the id column (string)</dd>


<dt>wave</dt>
<dd>Name of the wave column (string)</dd>

</dl>

is_panel_sorted: Check if panel data is properly sorted

Description

Usage

Value

Arguments