[R-sig-Geo] space time error message

[Sarah Goslee]

On Fri, Aug 8, 2014 at 7:55 AM, Abdoulaye Sarr <abdoulayesar at gmail.com> wrote:
> I am still hoping to have a quick explanation on what is causing the error
> or a suggestion on another way to do it?

Then you need to provide the small reproducible example that has
already been requested.

This may help:
http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example

Sarah

>
> Cheers,
> eus
>
>
> On Sun, Aug 3, 2014 at 2:20 PM, Abdoulaye Sarr <abdoulayesar at gmail.com>
> wrote:
>
>> I think the problem could be related to dates in precip, in fact here I am
>> using dekadal precip( 10 days average therefor for each month you have 01,
>> 11 and 21 as you can see in the date in sample dataframes dprec84.rda and
>> the stations1.rda.
>>
>> After creating these dataframes I am trying to use use meteo to create a
>> STFDF (I guess other packaged could do it?) using the command below:
>>
>> > prec <- meteo2STFDF(dprec84,stations1, crs= CRS('+proj=longlat
>> +datum=WGS84'))
>> Joining by: staid, date
>>
>> Joining by: staid
>> Error in  ST(sp, time, endTime) : time is not a time based class
>>
>> If doable with other package also will be fine for me.
>>
>> asarr
>>
>>
>> On Sun, Aug 3, 2014 at 9:40 AM, Edzer Pebesma <
>> edzer.pebesma at uni-muenster.de> wrote:
>>
>>> Please provide a small, reproducible example.
>>>
>>> Wbr,
>>>
>>> On 07/26/2014 08:29 PM, Abdoulaye SARR wrote:
>>> >
>>> > Hello list,
>>> >
>>> > I am creating a space time full data frame but having this error
>>> message:
>>> >
>>> > Joining by: staid
>>> > Error in ST(sp, time, endTime) : time is not a time based class
>>> >
>>> > the data frame 10 days average precip used looks like this:
>>> >
>>> >      staid       time prec
>>> > 1 38007200 1984-01-01  0.0
>>> > 2 38008400 1984-01-01  0.8
>>> > 3 38014000 1984-01-01  0.0
>>> > 4 38008100 1984-01-01  0.0
>>> > 5 38008700 1984-01-01  0.0
>>> > 6 38009200 1984-01-01  0.0
>>> >
>>> >
>>> > The next date 1984-01-11 etc..
>>> >
>>> > could someone help solve this urgent issue.
>>> >
>>> > Best regards,
>>> >
>>> > eus
>>> >
-- 
Sarah Goslee
http://www.functionaldiversity.org