Re: crosstab

From: Joe Conway <mail(at)joeconway(dot)com>
To: Aram Fingal <fingal(at)multifactorial(dot)com>
Cc: Postgres-General General <pgsql-general(at)postgresql(dot)org>
Subject: Re: crosstab
Date: 2012-09-04 23:21:03
Message-ID: 50468CDF.5050100@joeconway.com
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On 09/04/2012 02:59 PM, Aram Fingal wrote:
> On Sep 4, 2012, at 4:36 PM, A.M. wrote:
>
>> Or you could return the heatmap/plot as BYTEA data or use arrays as
>> necessary.
>
> I was actually thinking exactly the same thing. Part of the reason I
> use PostgreSQL for all my bioinformatics work is that there is a need to
> correctly associate analysis results with the data and experimental
> methods they come from. I have tables for experimental runs,
> technicians, procedures, samples, drugs, etc. and I use foreign key
> constraints to connect them all. The idea is to have all the
> information readily accessible to reproduce complex results in modern
> scientific fashion. If I store the plots in the DB, I can connect them
> to all these basic information tables.

You can return your results (or some intermediate) object in serialized
form as bytea from a PL/R function and store it in a table along with
the basic experimental info. Then later if you pass the serialized
object back into another PL/R function as a bytea argument, it gets
reconstituted as the original R object.

Joe

--
Joe Conway
credativ LLC: http://www.credativ.us
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