Speed

Speeds of vehicles before and after adding additional signage.

datasets

Provides most of the data files used in the textbook "Scientific Research and Methodology" by Dunn (2025, ISBN:9781032496726; forthcoming).

Peter K Dunn

SRMData

Data Files Supporting "Scientific Research and Methodology" by
Peter K. Dunn (2025)

Peter K. Dunn 

Speed function

A data frame with 79 rows (each vehicle) and 2 columns:<dl>
 <dt>When</dt>
<dd>When the speed is measured; 
 one of <code>Before</code> or <code>After</code> new signage added</dd> <dt>Speed</dt>
<dd>The measured speed, in km/h</dd>
</dl>

Format

Speed of vehicles — Speed

A data frame with 79 rows (each vehicle) and 2 columns:<dl>
 <dt>When</dt>
<dd>When the speed is measured; 
 one of <code>Before</code> or <code>After</code> new signage added</dd>

 <dt>Speed</dt>
<dd>The measured speed, in km/h</dd>


</dl>

Speed: Speed of vehicles

Description

Usage

Arguments

Format