search for: lat_t

Displaying 3 results from an estimated 3 matches for "lat_t".

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2012 Feb 17
1
Plotting issue
...39;, pattern="0.2.text") # total number of files are 80 for ( i in 1:file_o){ #get data here I get Lat_o<- Lon_o <- time_o<- gas_o<- } file_t< list.files(path=' ', pattern="fg.nc") for (j in 1:file_t){ #get data here I get Lat_t<- Lon_t <- time_t<- gas_t<- } nobs<- length(Lat_o) for (k in 1:nobs){ # here it does some calculation and get some value which is " gas_new " } now I would like to plot this data for every month according to my observation data ############ plotting###...
2012 Sep 02
1
why variations in accuracy between R to ARCGIS for the same point reprojection?
...t to Berhmann to ensure equal area distribution of the points. In R, I am using: spPoint <- SpatialPoints(coords=coordinates(Data),proj4string=CRS("+proj=longlat +datum=WGS84")) and then reprojecting it to Berhmann with: spPointReprj=spTransform(Data,CRS("+proj=cea +lon_0=0 +lat_ts=30 +x_0=0 +y_0=0 +ellps=WGS84")) If I put the two outputs of the reprojections in the same map, they are off by few meters in the tropics by up to 40km in the poles. I decided to investigate how the reprojections are done and my calculations are different from both R and ArcGis: Firs...
2012 Oct 03
0
ggplot2 problem
...05-14 0.1991832405 227 1.116115e+12 2005-05-15 -0.0029508672 228 1.116202e+12 2005-05-16 0.1759385169 229 1.116288e+12 2005-05-17 -0.7524182200 230 1.116374e+12 2005-05-18 0.0271098670 Here is the code wich forms input matrix to make_stars function: transpose_stars = function(lat_b, long_b,lat_t,long_t,step){ matrix <- readSO2Data(lat_b, long_b) // read an arbitrary point for calculating matrix size nlat <- (lat_t-lat_b)/step+1 nlong <- (long_t-long_b)/step+1 ntime <- length(matrix$value) list_lat<-list() list_long<-list() list_time<-list() for( m in 1:nlat){ list_l...