Wed, Mar 18, 2020 at 10:37 AM Zia Ahmed wrote:
>
>> Please check this:
>>
>>
>> https://zia207.github.io/geospatial-r-github.io/geoprocessing-vector-data.html
>> Best
>> Zia
>>
>> On Tue, Mar 17, 2020, 10:39 AM Dexter Locke
>> wrote:
&g
Please check this:
https://zia207.github.io/geospatial-r-github.io/geoprocessing-vector-data.html
Best
Zia
On Tue, Mar 17, 2020, 10:39 AM Dexter Locke wrote:
> Within st_join() see the options like "left = TRUE".
>
> You may also want to look at st_intersects()
>
> Here are other helpful refer
This is might help you:
https://zia207.github.io/geospatial-r-github.io/netCDF-data-processing.html
Zia
On Wed, Mar 18, 2020, 9:34 AM Frederico Faleiro wrote:
> Hi Miluji,
>
> the R in general do not handle very well with netCDF. However I
> recommend you use the netcdf4 package before try oth
ormatics, but have some experience in R-coding. The
data used in this tutorial also available for download.
I appreciate any feedback for improving this tutorial.
I appreciate any feedback for improving this tutorial.
Best
Zia Ahmed
University at Buffalo
Tutorial consist follo
Dear All,
Best
*Zia Ahmed, PhD*
Research Associate Professor (Data & Visualization)
RENEW (Research and Education in eNergy, Environment and Water) Institute
<http://www.buffalo.edu/renew.html>
University at Buffalo <http://www.buffalo.edu/>
Tutorial consist followi
Please check this below link. It might help you what you need to do.
Zia
https://zia207.github.io/geospatial-data-science.github.io/
On Wed, Jun 19, 2019, 6:40 AM Lara Silva wrote:
> Hello,
>
> I am new in R and I need to plot the occurrence of a species.
> I have the presences of species (CSV
Dear List,
I am trying to calculate
*GLCM textures of all bands of a raster stack using GLCM package. Using
following code it runs perfectly. The code created four stacks for each
bands, each stack contains for 8 raster objects, but I am facing
difficulty to get results for further analysis.
out my model.
Thankyou in advance
Paolo Piras
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--
-
Zia Ahmed, PhD
Research Associa
rs with
> trellis.par.set, or reading the documentation of xyplot and levelplot in
> package lattice might help. It assumes that the words "lattice" and
> "trellis" ring a bell.
>
>
>> Thank you once again,
>>
>> Iain
>> _
e searched the documentation. However, I am new to R and I have been
> unable to uncover the mechanism that would allow me to modify these
> attributes. Any assistance would be gratefully received!
>
> Many thanks,
>
> Iain
>
> --
> Iain Dillingham
> School of Informa
'')
)}
# Step: 2: Merge with
for (i in 1:100){
x <- read.csv(paste('sim', i, '.csv', sep = ''), as.is = TRUE)
thana@data <- merge(thana@data, x, by.x="THANA_ID",by.y="THANA_ID",
all.x = TRUE,
sort = FALSE)
"/GWPR/Shape_Files",
> layer=paste("sim_",i,".shp",sep=""),driver="ESRI Shapefile")
>
> A better way is use create a list of variables, so i will assume
> the name of the variable.
>
>
> On Mon, Mar 12, 2012 at
.shp")
sim100.thana@data <- merge(thana@data,sim100,by.x="THANA_ID",
by.y="THANA_ID", all.x=T, sort=F)
writeOGR(sim100.thana,dsn="/GWPR/Shape_Files", layer="sim100.thana",
driver="ESRI Shapefile")
--
-
Zia Ahmed, PhD
Research Associ
Is there anyway to calculate population weighted centroids of a spatial
polygon in R? Any idea will be appreciated. Thanks
Zia
--
-
Zia Ahmed, PhD
Research Associate
Department of Crop and Soil Sciences
1002 Bradfield Hall, Cornell University
Ithaca, NY 14853-4203
t
2.37628 4.9865 1 NA 2739005
557044.6
11 62.8022 -2.35943 1.450378 -2.38489 4.995307 1 NA 2739341
542981.4
12 62.95506 -2.36003 1.45098 -2.38804 4.996592 1 NA 2749492
553074.4
--
-----
Zia Ahmed, PhD
Research Associate
Department of Crop and Soil Sciences
1002 B
"sim35" "sim36" "sim37" "sim38"
[46] "sim39" "sim40" "sim41" "sim42" "sim43"
[51] "sim44" "sim45" "sim46" "sim47" &quo
> Department of Statistics, Iowa State University
> 2215 Snedecor Hall, Ames, IA
>
>
>
> On Wed, Jan 25, 2012 at 3:44 PM, Zia Ahmed wrote:
>> I am trying to create an animated GIF file from a set of PNG files
>> created from number realization. Itried with animation (
//ryouready.wordpress.com/2010/11/21/animate-gif-images-in-r-imagemagick/)
Invalid Parameter - 40
Warning message:
running command 'convert -delay 40 sim*.png plot.gif', invisible = F,
wait=T' had status 4
-
Zia Ahmed, PhD
Research Associate
Department of Crop
percentile.
These are two different things. The first is a spatial aggregation,
the second an aggregation over the (sampled) probability distribution.
On 10/18/2011 11:07 PM, Zia Ahmed wrote:
I am trying to calculating 95th percentile within polygons from a of set
realizations - something like
I am trying to calculating 95th percentile within polygons from a of
set realizations - something like zonal statistics.
How do I calculate 95 th percentile for each polygon over all realizations.
Thanks
Zia
For example:
data(meuse)
data(meuse.grid)
coordinates(meuse) <- ~x+y
coordinates(meu
I used following code to merge a series of shape files with similar
file structure. We can try this, but you need to do some modification of
the code.
Zia
###
# Require packages: rgdal and maptool
#--
Hi,
I am trying to do kriging with in strata. I use the example in book
"Applied Spatial Data Analysis with R" page:217. It works fine with
"meuse" data. But when I am trying to use my data it shows some error
massage.
Do I missing something here?
Thanks in advance
Zia
Note: I am using fo
/I used following R code sometime ago to merge several shpe files.
You can try this. /Just need little modify the code. (shape file
will like this:Name01.shpe,Name02.shape)
Zia
//
/
# Require packages: rgdal and maptool
#-
library(rgdal)
libra
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