Message-ID: <1293431627702-3164732.post@n4.nabble.com>
Date: 2010-12-27T06:33:47Z
From: bbslover
Subject: how to replace my double for loop which is little efficient!
In-Reply-To: <1293372807894-3164262.post@n4.nabble.com>
thanks for your help, it is great. In addition, In the beginning, the format
of x is dataframe, and i run my code, it is so slow, after your help, I
change x for matirx, it is so quick. I am very grateful your kind help, and
your code is so good!
kevin
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