module Main where import HROOT main = do tcanvas <- newTCanvas "test" "test" 640 480 h1 <- newTH1F "test" "test" 100 1 10 h2 <- newTH1F "test" "test" 100 1 10 fill1 h1 5 fill1 h2 6 add h1 h2 1.0 draw h1 "" tfile <- newTFile "test.root" "NEW" "" 1 write h1 "" 0 0 close tfile "" delete tfile delete h1 delete h2 delete tcanvas