Scala: how to flatten a List of a Set of filepaths -
i have list[set[path]]:
update: each path in set unique , represents particular directory location. there no duplicates. so, looking total number of path elements/
val micedata = list(set(c:\users\lulu\documents\mice_data\data_mining_folder\deeplynesteddirectory\flatdirectory\test7.txt, c:\users\lulu\documents\mice_data\data_mining_folder\deeplynesteddirectory\flatdirectory\test2.txt, c:\users\lulu\documents\mice_data\data_mining_folder\deeplynesteddirectory\flatdirectory\test6.txt, c:\users\lulu\documents\mice_data\data_mining_folder\deeplynesteddirectory\flatdirectory\test5.txt, c:\users\lulu\documents\mice_data\data_mining_folder\deeplynesteddirectory\flatdirectory\test8.txt, c:\users\lulu\documents\mice_data\data_mining_folder\deeplynesteddirectory\flatdirectory\test3.txt, c:\users\lulu\documents\mice_data\data_mining_folder\apowerpoint.pptx, c:\users\lulu\documents\mice_data\data_mining_folder\deeplynesteddirectory\flatdirectory\test1.txt, c:\users\lulu\documents\mice_data\data_mining_folder\deeplynesteddirectory\flatdirectory\test4.txt, c:\users\lulu\documents\mice_data\data_mining_folder\deeplynesteddirectory\flatdirectory2\test10.txt), set(c:\users\lulu\documents\mice_data\data_mining_folder\deeplynesteddirectory\flatdirectory2\test6.txt, c:\users\lulu\documents\mice_data\data_mining_folder\deeplynesteddirectory\flatdirectory2\test3.txt, c:\users\lulu\documents\mice_data\data_mining_folder\deeplynesteddirectory\flatdirectory2\test4.txt, c:\users\lulu\documents\mice_data\data_mining_folder\deeplynesteddirectory\flatdirectory2\test70.txt, c:\users\lulu\documents\mice_data\data_mining_folder\deeplynesteddirectory\flatdirectory2\test8.txt, c:\users\lulu\documents\mice_data\data_mining_folder\deeplynesteddirectory\flatdirectory2\test5.txt, c:\users\lulu\documents\mice_data\data_mining_folder\deeplynesteddirectory\flatdirectory2\test2.txt, c:\users\lulu\documents\mice_data\data_mining_folder\flatdirectory\test2.txt, c:\users\lulu\documents\mice_data\data_mining_folder\flatdirectory\test3.txt, c:\users\lulu\documents\mice_data\data_mining_folder\flatdirectory\test1.txt), set(c:\users\lulu\documents\mice_data\data_mining_folder\flatdirectory\test80.txt, c:\users\lulu\documents\mice_data\data_mining_folder\flatdirectory\test7.txt, c:\users\lulu\documents\mice_data\data_mining_folder\flatdirectory\test40.txt, c:\users\lulu\documents\github\data_mining_folder\flatdirectory\test6.txt, c:\users\lulu\documents\mice_data\data_mining_folder\flatdirectory\test5.txt), set(c:\users\lulu\documents\mice_data\data_mining_folder\zipfile.zip), set(c:\users\lulu\documents\mice_data\data_mining_folder\micetest.txt,c:\users\lulu\documents\mice_data\data_mining_folder\riley.jpg)) there 5 sets in list, each set holding path(s). total number of such paths 28, if counted correctly.
now, want find out total number of path elements across sets in list.
i have done computation in area of code upstream, curious now, , learn more scala in process.
something like:
val totalpaths = <<iterate on list , count paths>> i shortest, idiomatic piece of code accomplish this.
val paths = { //gives list of paths on sets set <- micedata path <- set } yield path val totalpaths = paths.toset.size // converting set remove duplicates if 
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