search for: conic

#################################################################################### We have used maptools to construct state, county, township, census-tract, and zipcode level R maps with an Albers Conical Equal Area projection. We would like to be able to plot the location of weather stations or other point locations on the maps. The data the point locations are in latitude-longitude units and we must convert the coordinates to the Albers Conical Equal Area coordinates. However, as of yet, w...

Using R 2.0.1 on Windows XP, I am getting an error msg: Error in .Fortran("conic", nxy = nxy, npt = npt, CP = cp, EP1 = ep1, EP2 = ep2, : Fortran function name not in load table I am wondering if there is a way to see what function names are in the load table? Maybe the function name has been altered? The first thing I do in my analysis script is to load a DL...

...ordinates from a HIRHAM netcdf file. I know how to extract a slice of dataset both in space and in time and I also know the area that this file should cover, however I have no idea regarding the reference for both LAT/LON and RLAT/RLON. I tried already tried is ArcGIS to give the Lambert Conformal Conic projection as the spatial reference, by default arcgis gets the rlat and rlon for coordinates. however the resulting raster is displaced from were it should be. Can someone help me with this? Thanks A.R. [[alternative HTML version deleted]]

Subsetting using [] vs. head(), gives different results. R code: > head(train$data, 5) [1] 0 0 1 0 0 > train$data[1:5, 1:5] 5 x 5 sparse Matrix of class "dgCMatrix" cap-shape=bell cap-shape=conical cap-shape=convex [1,] . . 1 [2,] . . 1 [3,] 1 . . [4,] . . 1 [5,] . . 1...

...: int [1:143286] 2 6 8 11 18 20 21 24 28 32 ... > ..@ p : int [1:127] 0 369 372 3306 5845 6489 6513 8380 8384 10991 > ... > ..@ Dim : int [1:2] 6513 126 > ..@ Dimnames:List of 2 > .. ..$ : NULL > .. ..$ : chr [1:126] "cap-shape=bell" "cap-shape=conical" > "cap-shape=convex" "cap-shape=flat" ... > ..@ x : num [1:143286] 1 1 1 1 1 1 1 1 1 1 ... > ..@ factors : list() > > > Where is the data, is it in $p, $i, or $x? > > So the "data" (meaning the values of the sparse matrix) are...

Dear R list, I came across dgCMatrix. I believe this class is associated with sparse matrix. I see there are 8 attributes to train$data, I am confused why are there so many, some are vectors, what do they do? Here's the R code: library(xgboost) data(agaricus.train, package='xgboost') data(agaricus.test, package='xgboost') train <- agaricus.train test <- agaricus.test

...ot;] with 6 slots ..@ i : int [1:143286] 2 6 8 11 18 20 21 24 28 32 ... ..@ p : int [1:127] 0 369 372 3306 5845 6489 6513 8380 8384 10991 ... ..@ Dim : int [1:2] 6513 126 ..@ Dimnames:List of 2 .. ..$ : NULL .. ..$ : chr [1:126] "cap-shape=bell" "cap-shape=conical" "cap-shape=convex" "cap-shape=flat" ... ..@ x : num [1:143286] 1 1 1 1 1 1 1 1 1 1 ... ..@ factors : list() > Where is the data, is it in $p, $i, or $x? So the "data" (meaning the values of the sparse matrix) are in the @x leaf. The values all ap...

summary: I can display a lon-lat map on a lattice::layerplot, and I can display a Lambert conformal conic (LCC) map on a spam::image, but I can't display an LCC map on a lattice::layerplot. Example follows. What am I doing wrong? details: I've been using `lattice` (via `rasterVis`) successfully to display global atmospheric data, which works well enough (though I am definitely intrigued by gg...

...ere are any Zaurus owners out there using there zaurus as a voip phone?? I'm trying to decide which on to buy. The sl-6000 is perfect for phone use from what I've read, but it's not very pocket friendly (http://www.sharpusa.com/images/hpc_SL6000_pic1.jpg) The clamshell models (http://conics.net/shp/pda/zaurus-sl-c700/sl-c3000.html) are much nicer but would require some type of headset. Anyway, more to the point... I've read that there are zaurus users who have their pda setup to use nfs mount when they're in range of their home network (saves your flash if you're not usi...

...4 28 32 ... >>> ..@ p : int [1:127] 0 369 372 3306 5845 6489 6513 8380 8384 10991 >>> ... >>> ..@ Dim : int [1:2] 6513 126 >>> ..@ Dimnames:List of 2 >>> .. ..$ : NULL >>> .. ..$ : chr [1:126] "cap-shape=bell" "cap-shape=conical" >>> "cap-shape=convex" "cap-shape=flat" ... >>> ..@ x : num [1:143286] 1 1 1 1 1 1 1 1 1 1 ... >>> ..@ factors : list() >>> >>>> Where is the data, is it in $p, $i, or $x? >>> >>> So the "data...

My goal is to prepare a thematic map of the US, with states shaded according to their values for a variable of interest. I would like to include an inset for Alaska in the upper left and an inset for Hawaii in the lower left. If possible, I'd like to use Albers conic projection, or something similar. Thus far I have tried using the maps package with its state database (which omits Alaska and Hawaii) and the gmaps package (which places an inset for Alaska in the lower left and uses a projection [Miller cylindrical?] that distorts states along the northern...

...4 28 32 ... >> ..@ p : int [1:127] 0 369 372 3306 5845 6489 6513 8380 8384 10991 >> ... >> ..@ Dim : int [1:2] 6513 126 >> ..@ Dimnames:List of 2 >> .. ..$ : NULL >> .. ..$ : chr [1:126] "cap-shape=bell" "cap-shape=conical" >> "cap-shape=convex" "cap-shape=flat" ... >> ..@ x : num [1:143286] 1 1 1 1 1 1 1 1 1 1 ... >> ..@ factors : list() >> >> > Where is the data, is it in $p, $i, or $x? >> >> So the "dat...

....1 under Gentoo Linux, I'm trying to produce a thematic map of the USA using the gmaps package. The result thus far has two problems from my point of view. First, the projection (Miller cylindrical?) elongates southern states and flattens northern ones unattractively. I'd prefer Albers conic projection or something similar. Second, the inset for Alaska is placed south of the contiguous states. I'd prefer to put it north of them. I would be very grateful to anyone who could suggest (a) how to change the projection and/or (b) relocate the inset. The most relevant section of my...

...tp://cairographics.org/releases/pixman-0.21.2.tar.gz.sha1.asc (signed by S?ren Sandmann Pedersen <sandmann at daimi.au.dk> Git: git://git.freedesktop.org/git/pixman tag: pixman-0.21.2 Log: Andrea Canciani (3): Remove unused stop_range field Fix opacity check Improve conical gradients opacity check Siarhei Siamashka (12): Fixed broken configure check for __thread support Do CPU features detection from 'constructor' function when compiled with ARM: fix 'vld1.8'->'vld1.32' typo in add_8888_8888 NEON fast path A...

Dear all, 1. How can I compute the intersecting area between 2 polygons ? 2. I have polygons with coordinates in decimal degrees (i.e. 13 deg 30 min = 13.5 decimal degrees). I want to compute their area and get the results in square meters or square kiometers. Can anyone give me a conversion coefficient or a pointer where I can find this information (sorry for this off topic question) ? Thanks

Hi, Could any one point me to the projection, and parameters if necessary, that would show each country/continent with it's area accurately refelcted on the plot? E.g. aitoff vs. albers vs. bonne vs. cylequalearea vs. guyou - they don't all look the same to mee but some of the documentations suggests they are equal area? Of course this isn't my field, so I am largely guessing and am

...an be used as an approximate relation as long as the Area remains nearly constant. > > However generic questions like doubling the volume are impossible to answer without knowledge of the reservoir shape. E.g. in a cylindrical reservoir halving the water level also halves the volume, but in a conical reservoir, halving the level leaves only 1/8 of the volume. > > -pd > > > >> On 8 Apr 2024, at 05:55 , javad bayat <j.bayat194 at gmail.com> wrote: >> >> Dear all; >> Many thanks for your replies. This was not homework. I apologize. >> Let me exp...

...ate relation > as long as the Area remains nearly constant. > > > > However generic questions like doubling the volume are impossible to > answer without knowledge of the reservoir shape. E.g. in a cylindrical > reservoir halving the water level also halves the volume, but in a conical > reservoir, halving the level leaves only 1/8 of the volume. > > > > -pd > > > > > > > >> On 8 Apr 2024, at 05:55 , javad bayat <j.bayat194 at gmail.com> wrote: > >> > >> Dear all; > >> Many thanks for your replies. This...

Hello, I used a mac G5, R.2.1.1, and G77 3.4.4 and I would like to use and call a fortran subroutine. The trouble is that it seems I am not able to correctly load the compiled code. Here is what I have done: In the terminal this how I compiled my fortran code: R CMD SHLIB ~/Desktop/Fortan_kmeans/kmeans3.f There is the wrapper I have paste inside de kmeans3.f file: c

....1 under Gentoo Linux, I'm trying to produce a thematic map of the USA using the gmaps package. The result thus far has two problems from my point of view. First, the projection (Miller cylindrical?) elongates southern states and flattens northern ones unattractively. I'd prefer Albers conic projection or something similar. Second, the inset for Alaska is placed south of the contiguous states. I'd prefer to put it north of them. I would be very grateful to anyone who could suggest (a) how to change the projection and/or (b) relocate the inset. The most relevant section of my...