dhis2-devs team mailing list archive

[Bob Jolliffe <bobjolliffe@xxxxxxxxx>]

We've talked before about integrating scripting engine (such as R)
into dhis : http://www.rforge.net/rscript/

But my guess is that most R users are going to be of a level of
sophistication that they would be most comfortable doing the kind of
thing you describe - conecting directly to db with r client and doing
their stuff.

OTOH if there were sufficiently useful "canned" dhis R scripts which
could take some number crunching load off the jvm and produce canned
useful analysis then that would be different.

Sadly I don't know sufficient about R to know.  But I sense it ...

Regards
Bob

On 27 May 2010 10:08, Jason Pickering <jason.p.pickering@xxxxxxxxx> wrote:
> Hi everyone. I have had a recent question from a user about how DHIS2
> can be used with R. I am including a trivial example here about how to
> use R as as a client to access data and produce a graph in DHIS2.
>
> Just get a copy of R  and install the DBI and RPostregSQL packages with
>
>>install.packages()
>
>
> After that, just connect to the DB, retrieve your data (in this case
> from a report table) and produce a graph.
>
>>library(DBI)
>
>>library(RPostgreSQL)
>
>>drv <- dbDriver("PostgreSQL")
>
>>con <- dbConnect(drv, dbname="dhis2_zm_prod2", user="postgres", password="postgres")
>
>>rs <- dbSendQuery(con, "SELECT * FROM _report_malaria_indicators_district where
> organisationunitid = 3904")
>
>>data <- fetch(rs,n=-1)
>
>>barplot(data$malaria_confirm_incidence, names.arg=as.character(data$periodname), main=as.character(data$organisationunitname[1]),las=2)
>
>>dev.print(png, file="/home/jason/test.png")
>
> Regards,
> Jason
>
> ---
> Jason P. Pickering
> email: jason.p.pickering@xxxxxxxxx
> tel:+260968395190
>
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