Thomas Lumley wrote:
[...]
If you can persuade the people measuring the values to give you the
numbers (assuming they are just below `limit of detection' rather
than genuine non-detects) you will reduce the need for imputation.
This is often the most powerful technique -- analytical chemists ar
Thomas Lumley <[EMAIL PROTECTED]> writes:
> On Mon, 15 Mar 2004, Jonathan Williams wrote:
>
>> Is there a good way in R to impute values which exist,
>> but are less than the detection level for an assay?
>
>
> If there were a good way to do it, it would probably be implementable or
> implemented
On Mon, 15 Mar 2004, Jonathan Williams wrote:
> Is there a good way in R to impute values which exist,
> but are less than the detection level for an assay?
If there were a good way to do it, it would probably be implementable or
implemented in R.
If you can persuade the people measuring the v
> -Original Message-
> From: Jonathan Williams
> [mailto:[EMAIL PROTECTED]
> Sent: 15 March 2004 12:48
> To: Ethz. Ch
> Subject: [R] imputation of sub-threshold values
>
>
> Security Warning:
> If you are not sure an attachment is safe to open contact
Is there a good way in R to impute values which exist,
but are less than the detection level for an assay?
Thanks,
Jonathan Williams
OPTIMA
Radcliffe Infirmary
Woodstock Road
OXFORD OX2 6HE
Tel +1865 (2)24356
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