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From: Nnamdi <[EMAIL PROTECTED]>
To: roger koenker <[EMAIL PROTECTED]>
Sent: Friday, April 18, 2008 1:08:58 PM
Subject: Re: [R] efficiently replacing values in a matrix
I tried the sparse matrix implementation, still there are issues:
a <- matrix(
matrices? If I have to
spend 41 secs each time I enter into a cell and I have 1x1 cells to
enter that is impractical!
--Nnamdi
Rolf Turner-3 wrote:
>
>
> On 17/04/2008, at 9:33 AM, Charles C. Berry wrote:
>
>
>
>> I'll lay odds that Matthew's &#x
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