Hello Paul,

I get the following error:
 gridded(wald)= TRUE
suggested tolerance minimum: 0.125000000000666
Error in points2grid(points, tolerance, round, fuzz.tol) :
  dimension 1 : coordinate intervals are not constant

What do I do?  Thanks a lot!

On Fri, Aug 21, 2009 at 12:34 PM, Paul Hiemstra <p.hiemstra@geo.uu.nl>wrote:

> Hi,
>
> If your object's points are regularly spaced and in a SpatialPoints object,
> use:
>
> gridded(myobj) = TRUE
>
> Or you can from a data.frame with the coordinates and attributes to a grid
> by:
>
> coordinates(myobj) = ~x+y
> gridded(myobj) = TRUE
>
> or shorthand:
>
> gridded(myobj) = ~x+y
>
> cheers,
> Paul
>
> Mehdi Khan schreef:
>
>> Hello, I have a matrix 1.5 million rows long..
>>
>> wald:
>>
>>  coordinates  V3
>> 1  (-124.996, 42.0458) 150
>> 2  (-124.987, 42.0458) 150
>> 3  (-124.979, 42.0458) 150
>> 4  (-124.971, 42.0458) 150
>> 5  (-124.963, 42.0458) 150
>> 6  (-124.954, 42.0458) 150
>> 7  (-124.946, 42.0458) 150
>> 8  (-124.938, 42.0458) 150
>> 9  (-124.929, 42.0458) 150
>> 10 (-124.921, 42.0458) 150
>>
>>
>> I would like to coerce this into a grid object so that I can overlay
>> points
>> onto it.  How exactly could I accomplish that?  Thank you!!
>>
>> Mehdi Khan
>>
>>        [[alternative HTML version deleted]]
>>
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>>
>>
>
>

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