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0034eb20
2009 May 05
1
self organizing map advice for categorical data
...55 +0200
From: Petr PIKAL <petr.pikal at precheza.cz>
Subject: [R] Odp: Creating a variable which is the sum of equal rows
in a dataframe
To: "Cecilia Carmo" <cecilia.carmo at ua.pt>
Cc: r-help at r-project.org
Message-ID:
<OF924A8328.8F8F5FDA-ONC12575AC.003FD6A7-C12575AC.003FEE20 at precheza.cz>
Content-Type: text/plain; charset="UTF-8"
Hi
r-help-bounces at r-project.org napsal dne 04.05.2009 13:19:15:
> Hi everyone:
>
> I need to count the number of banks of each firm in my
> data. The firm is identified by the fiscal number. The
> banks...