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I need someone to do some simple R tasks (maybe I should not say simple since I cannot do them myself). I have a dataframe. It has Date,Longitude, Latitude, and Value among the attributes. It looks partially like this > head(radSamp[,c(3,4,5)])
Latitude Longitude Value
1 39.16094 140.4883 45
2 32.84428 -117.2240 47
3 35.80605 139.3789 28
4 35.07816 -106.6123 50
5 35.83174 136.2027 35
6 34.78944 137.9496 32
I want to breakup the geographical region into about 40x40 subregions and then plot the data over time for each of these 1600 subregions. I thought that if I make a factor that consists of the 1600 subregions then I could I can focus on what is happening in each of these rectangles by using split(radSamp$Value, f). In any case, I want to plot this over time for each of the subregions. The other thing I want is a heat map of the region, preferably using a package like 'RgoogleMaps' or ggmap so that the "heat" is superimposed on a google map....
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