Hello
Given a set of geographic coordinates and values associated with those
points, i want to interpolate data and generate heat map on google maps
with colors based on the values. Can you guide me to some R examples that
achieve this? I have to create this from scratch...the data I have is like
Hello,
I am having serious issues creating a space time object with a list of
spatialpolygonsdataframes and their dates/ time. I keep getting an error about
the time not changing. How can I get this done please? Here's a sample of my
data:
[[1]]
class : SpatialPolygonsDataFrame
features
Hi,
I'm trying to apply a conditional statement to three raster layers using the
following function:
Con = function (condition, trueValue, falseValue){
return(condition*trueValue + (!condition)*falseValue)
}
A priori I've generated an empty matrix (r4) that match the other two raster
layers.
On 07/12/2015 07:08 PM, joke atuge via R-sig-Geo wrote:
> Hello,
> I am having serious issues creating a space time object with a list of
> spatialpolygonsdataframes and their dates/ time. I keep getting an error
> about the time not changing. How can I get this done please? Here's a sample
>
Hello, This is in addition to my earlier message. Here's the sample codes oh
how I tried to create the STFDF. DLF is a list of variables called "FRP" for
each polygon in the DL3 list. Timex is the time list for the spatial polygons
list.
DL7 <- sapply(1:length(DL3), function(i) {
x <- DL3[[i
On 07/12/2015 10:16 PM, joke atuge via R-sig-Geo wrote:
> Hello, This is in addition to my earlier message. Here's the sample codes oh
> how I tried to create the STFDF. DLF is a list of variables called "FRP" for
> each polygon in the DL3 list. Timex is the time list for the spatial polygons
A reproducible example would help us understand your problem, but since
you're working with matrices, this doesn't seem like a raster package (or
more generally, an R-sig-Geo) issue.
mCon is already a matrix - why do you need to assign it to an "empty
matrix" (r4)?
Do you mean an empty raster? If
Ajoke:
> delta
function (x)
{
if (any(is.na(x)))
stop("time values cannot be negative")
augment.with.one = function(x) {
ux = unique(x)
l = length(ux)
if (l <= 1)
stop("cannot derive time interval from length 1 or constant
sequence")
lx =
