[R] Ghost variables

[Jeff Newmiller]

Cease and desist with erasing objects... it fails to address loaded packages and attached data. Rather, restart R. There is an option to do this in RStudio, but with Rgui you have to exit and restart.

On February 25, 2019 10:31:46 AM PST, JLucke using ria.buffalo.edu wrote:
>Fellow R-gonauts:
>
>I frequently erase/remove all the objects in my current environment so
>can 
>I re-run scripts to ensure that analyses are complete, error-free, and 
>accurate. 
>However, sometimes when I re-rerun a script I get warning messages (see
>
>below for example)  regarding some variables (objects) when these 
>variables do not exist in my current environment. 
>These ghost variables had existed at one time, but were subsequently 
>removed by the rm(list=ls()) command or by the broom icon in RStudio. 
>
>What's happening and how do I exorcise the ghosts?
>
>
>Warning messages:
>1: Unknown or uninitialised column: 'K'. 
>2: Unknown or uninitialised column: 'NDAfit'. 
>3: Unknown or uninitialised column: 'NDAfit'. 
>4: Unknown or uninitialised column: 'NDAfit'. 
>5: Unknown or uninitialised column: 'NDAfit'. 
>6: Unknown or uninitialised column: 'NDAfit'. 
>7: Unknown or uninitialised column: 'NDAobs'.
>
>Joe Lucke
>	[[alternative HTML version deleted]]
>
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-- 
Sent from my phone. Please excuse my brevity.