Layout cache

Recently drawn expressions are cached, so drawing the same one again is fast. latex_cache_limit() sets how many are kept (512 by default), latex_cache_clear() empties the cache, and latex_cache_info() reports on it.

Usage

latex_cache_limit(n = 512L)

latex_cache_clear()

latex_cache_info()

Arguments

n

Number of entries to keep. 0 turns the cache off.

Value

latex_cache_limit() returns the previous limit and latex_cache_clear() returns NULL, both invisibly. latex_cache_info() returns a list with size, max_size, hits and misses.

See also

latex_grob, latex_options

Examples

# \donttest{
  latex_cache_limit(256)
  grid.latex("$e^{i\\pi} + 1 = 0$")

  latex_cache_info()
#> $size
#> [1] 18
#> 
#> $max_size
#> [1] 256
#> 
#> $hits
#> [1] 0
#> 
#> $misses
#> [1] 18
#> 
  latex_cache_clear()
# }