Hi all, Trying to knowing a little bit more about Raku lang, I decided to write a simple (as possible) lib to became similar to R/dplyr or Python/Pandas method to data wrangle.
So, Raku gives us the possibility to deal with data in a functional way, given the native pipe operator, which is wonderful for newbies. > @a = 1..100 > @a ==> map( { .sqrt } ) > @a ==> HYPER( { .sqrt } ) # faster map Even it is being *too verbose*, is good enough for the first moment to a data scientist. So I'm trying to decide the best way to abstract columns. First, I decide to use a hash where the key is the column name and the value is the oriented list ou array. > my %a = {'column1' => [1...5], 'column2' => ['a'...'e']} Potential difficulties: Useless use of hash composer on right side of hash assignment; did you mean := instead? at line 2 ------> <BOL>⏏<EOL> {column1 => [1 2 3 4 5], column2 => [a b c d e]} It is a warning, not an error! But let's obey the warning. > my %a = {'column1' := [1...5], 'column2' := ['a'...'e']} ===SORRY!=== Error while compiling: Cannot use bind operator with this left-hand side ------> n1' := [1...5], 'column2' := ['a'...'e']⏏} Now we got an error. Someone may explain me why I got this error?? Thanks in advance -- Aureliano Guedes skype: aureliano.guedes contato: (11) 94292-6110 whatsapp +5511942926110