Kirk Wythers schreef:
> Gunnar Hjalmarsson:
>> Kirk Wythers:
>>> I don't see how $totals{$year}{$month}{count} ++; is holding the
>>> count.
>>
>> Read about the auto-increment operator in "perldoc perlop".
>
> OK. I'll try and be more clear to the degree of my ignorance. First,
> I do not understand the use of $totals in both the sum of the scalar
> tmax, and the incremented count.
>
> # store totals by month as:
> $totals{$year}{$month}{tmax} += $tmax;
> ...
> # keep track of the count
> $totals{$year}{$month}{count} ++;
>
> I think what I am confused by is the relationship between the scalar
> $tmax and the (whatever you call it) $totals{$year}{$month}{tmax}
>
> Therefore, if I want the sum of tmax, I'm not sure what is holding
> the total of tmax. Is it $tmax, or $totals{$year}{$month}{tmax}?
> The same goes for count. What is the holding the count?
>
> I guess I'm just used to the very simple $ as defining the scalar.
>
> SImilarly, if I want the average of $tmax, then I would want to
> divide $totals{$year}{$month}{tmax} by $totals{$year}{$month}{count}
Put
use Data::Dumper;
print Dumper $totals;
at the end of the code.
--
Affijn, Ruud
"Gewoon is een tijger."
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