Hi,
I'm having a problem referencing/returning my hash arrays and thought I would ask here ... I've been stuck on this for 2 days already trying to read/understand perldocs etc.! pretty new to Perl so apologies if this is a super-n00b question.
I'm trying to pass an array of hash arrays to-and-from a sub.
E.g. : $F_SCORE$i{$co})where $i is the year counter, and $co is a company name string.

My basic code is this:

At end of sub:

    return (\@date, \@F_SCORE, \@F_SCORE_BOX, \@F_ROA, \@F_CFO, \@F_dROA, \@F_ACCRUAL, \@F_dLEVER, \@F_dLIQUID, \@F_EQOFFER, \@F_dTURN, \@F_dMARGIN);

then in main: 

    my ($date_ref, $F_SCORE_ref, $F_SCORE_BOX_ref, $F_ROA_ref, $F_CFO_
+ref, $F_dROA_ref, $F_ACCRUAL_ref, $F_dLEVER_ref, $F_dLIQUID_ref, $F_E
+QOFFER_ref, $F_dTURN_ref, $F_dMARGIN_ref) = piotroski (\@balancesheet
+s, \@cashflows, \@pnl, \@cdata, $co_name, $yahoo_isin, $co_exchange, 
+$statement_cur, $px_cur);        

    my (@date, @F_SCORE, @F_SCORE_BOX, @F_ROA, @F_CFO, @F_dROA, @F_ACC
+RUAL, @F_dLEVER, @F_dLIQUID, @F_EQOFFER, @F_dTURN, @F_dMARGIN) = (@$d
+ate_ref, @$F_SCORE_ref, @$F_SCORE_BOX_ref, @$F_ROA_ref, @$F_CFO_ref, 
+@$F_dROA_ref, @$F_ACCRUAL_ref, @$F_dLEVER_ref, @$F_dLIQUID_ref, @$F_E
+QOFFER_ref, @$F_dTURN_ref, @$F_dMARGIN_ref);

    print "/$date[0]{$co_name}\t$date[1]{$co_name}\t$date[2]{$co_name}
+\t$date[3]{$co_name}\t$date[4]{$co_name}\n";    
    print "/$F_SCORE[0]{$co_name}\t/$F_SCORE[1]{$co_name}\t/$F_SCORE[2
+]{$co_name}\t/$F_SCORE[3]{$co_name}\t/$F_SCORE[4]{$co_name}\n";

[download]


Confusingly for me, $date prints each element just fine, whereas none of the others seem to contain any data (that I have find). In the sub itself, they work fine and I can dump F_Score (and other) values to the screen.

Kinda stumped and thought some kind soul here might have an idea! (I'm sure there is a better way to do this too ... I'm all ears!)

Thanks,

Carl

In reply to Referencing/returning array of hashes from sub by PoGGiE

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