[R] Return level plots

[Roy Mendelssohn]

Hi Michelle:


On Sep 23, 2012, at 3:38 PM, MichelleNCSU wrote:

> On Fri, Sep 21, 2012 at 3:45 PM, David Winsemius [via R]
> <ml-node+s789695n4643876h79 at n4.nabble.com> wrote:
>> 
>> On Sep 21, 2012, at 7:17 AM, MichelleNCSU wrote:
>> 
>>> Hello,
>>> 
>>> First of all, let me apologize that my statistics background is modest at
>>> best.
>>> 
>>> I am doing some extreme value analysis on model output (WRF) which have
>>> the
>>> following dimensions:
>>> 
>>> speed(time,lat,lon)
>> 
>> How is this object structured? Are there multiple time layers where speed is
>> measured at lat-lon points are successive times?
> 
> The object is over space and time.  It is model output from the
> atmospheric science modeling tool WRF
> (http://www.mmm.ucar.edu/wrf/users/)
> 
> The data is constructed in 3-dimensions where the wind speed has the
> dimensions (time, lat lat).
> There are 67 times with 106 and 193 points lat and lon at each time.
> This is why I was trying to index it to ensure I am able to perform
> the task at each grid point.
> 


You never mentioned how the data was read into R nor the exact present structure.  The output from something like:

str(speed)

would help, as well as the code you used to input the data. 

-Roy


**********************
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**********************
Roy Mendelssohn
Supervisory Operations Research Analyst
NOAA/NMFS
Environmental Research Division
Southwest Fisheries Science Center
1352 Lighthouse Avenue
Pacific Grove, CA 93950-2097

e-mail: Roy.Mendelssohn at noaa.gov (Note new e-mail address)
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