R Under development (unstable) (2026-01-20 r89309 ucrt) -- "Unsuffered Consequences"
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> 
> # TEST FILE FOR hash METHODS set
> 
> library(hash)
hash-2.2.6.4 provided by Decision Patterns

> h <- hash()
> 
> # SET: key-value pairs
> .set( h, "a", 1:2 )
> .set( h, letters, 1:26  )
> .set( h, 1:5, 1:5 ) 
> .set( h, letters, 12  )
> 
> # SET: key-hash pair added in version 1.0.4
> .set( h, "ha", hash( a=1, b=2 ) )
> class( h[["ha"]] ) == "hash"
[1] TRUE
> 
> 
> # SET: data.frame
> .set( h, "df", data.frame( a=1:10, b=11:20) )
> class( h[["df"]] ) == "data.frame" 
[1] TRUE
> 
> # SET: list
> .set( h, "li", list( a=1, b=1:5, c=letters[1:3] ) )
> class( h[["li"]] ) == "list" 
[1] TRUE
> 
> # SET: environment
> 
> proc.time()
   user  system elapsed 
   0.28    0.12    0.32