[R] How to override gWidgets:gvarbrowser_classes

[wampeh]

How do I get gvarbrowser to display the contents of data.frame named, say
"atab1"?  That is modify the "Filter by:" entries to only show data.frame

Also, how do I turn off the selection pull down box, given that I know the
name of the data.frame variable?  Basically, I will like to browse the
variable name in a data.frame

gdf(atab1, container =gwindow("Object browser"), expand=TRUE)
displays the data values, I an interest in showing just the names in a GUI
environment similar to gvarbrowser 


I tried the following

age=18:29; height=1:12; 
atab1 <- data.frame(age=age,height=height)

mydefaultclasses <-  list("Data sets1"=c("data.frame")   )

v <- gvarbrowser(
  container =gwindow("Object broser"),  
  gvarbrowser_classes=mydefaultclasses 
  )

This did not seem to work, displayed default selection entries

I also tried:
options("gWidgets:gvarbrowser_classes"=mydefaultclasses)

v <- gvarbrowser(  container =gwindow("Object broser"))




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