[R] Strange message after reading multiple scripts from one folder

[Frank S.]

Dear list,
 
I have one folder named "scripts_JMbayes", wich contains 10 R scripts.
I can read them properly by doing:
 
> pathnames <- list.files(pattern="[.]R", path="Mydir/scripts_JMbayes", full.names = TRUE)
> sapply(pathnames, USE.NAMES = FALSE, FUN = source,)
 
However, R generates the following message:
 
        [,1]  [,2]  [,3]  [,4]  [,5]  [,6]  [,7]  [,8]  [,9]  [,10]
value   ?     ?     ?     ?     ?     ?     ?     ?     ?     ?         
visible FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
 
What does it mean and what should I change to avoid this message?
Any help would be appreciated!
 
Best,
 
Frank

 		 	   		  
	[[alternative HTML version deleted]]