Thank you for appreciated reply,
I explane you exactly what I want to do with this R code attached.
I want to adapt this code to my data to build an isohyet map.
But i have some difficulties to adapt it to my case.
I will be very happy when you will help my to adapt this R code (attached)
to my case.
You can find attached the you R code, my data file and my sahefile of
watershed.
Best regards
Le jeu. 9 janv. 2020 ? 17:47, Ben Tupper <btupper at bigelow.org> a ?crit :
Welcome to r-sig-geo!
I don't think that you haven't provided us enough information so that we
can help. On the other hand, does the example below using expand.grid help?
minx <- 20
maxx <- 25
miny <- 31
maxy <- 36
pixel <- 1
grd <- expand.grid(x = seq(minx, maxx, by=pixel), y = seq(miny, maxy,
by=pixel))
Ben
On Thu, Jan 9, 2020 at 11:41 AM Bakary Faty <bakaryfaty at gmail.com> wrote:
Dear,
I'm writing to express my wish to join R-sig-geo list users.
I was doing a search on the net to know how to build an isohyet map and
I came across this R code.
However, I stumbled upon a problem from the line :
grd <- expand.grid(x=seq(minx, maxx, by=pixel), y=seq(miny, maxy,
by=pixel)),
I get the following error message:
default method not implemented for type 'S4'. I want to know how resolve
this error.
Also, I would like to ask you only at the line level:
minx <- rain_data_UTM at bbox[1,1]
maxx <- rain_data_UTM at bbox[1,2]
miny <- rain_data_UTM at bbox[2,1]
maxy <- rain_data_UTM at bbox[2,2],
if I should limit myself to "rain_data_UTM" or write completely:
rain_data_UTM at bbox[,].
By the way, this is the pointfile I reconstructed.
You can find it attached to the mail.
Thanks in advance
Best regards
Bakary