search for: spatiotempor

Hi, I'm trying to compute  the spatiotemporal correlation matrix by using Delta Kronecker products of spatial and temporal correlation matrix  in R, but didn't find any delta Kronecker's operator in R. The operators in matrix such as multiplication, addition, eigen values/vector and etc is easily to find and used. Could someone help...

> library(SpatioTemporal) > library(plotrix) > library(maps) > palay.cov<-read.csv("C:/Users/BEDANA-PC/Desktop/STThesisWD/Thesis Data/palay.covar.csv") > palay.o<-read.table("C:/Users/BEDANA-PC/Desktop/STThesisWD/Thesis Data/palay.obs.txt") > palay.obs<-as.matrix(palay.o) >...

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Hi all, I'm trying to visualize animal movement data characteristics spatiotemporally by overlaying many different histograms on a map. I want the histograms to be plotted at coordinates in the map that matches a region they describe. If I was just doing this once, I'd fiddle in Illustrator after R and avoid the headache. But I'll be doing it many many times so...

R help, How would I input data, verify assumptions, and run a nested repeated measures ANOVA using R? I have STATION nested in SITE nested in BLOCK with measurements repeated for five YEARs. All are random variables and it's only slightly unbalanced. I'm trying to characterize spatiotemporal variation in stream habitat variables. Thanks for your help! Eric Merten

I have a data assimilation problem that might be amenable to the use of GAMS, but I am not sure how feasible it is to implement. I was told the R mailing list was a great resource. My observations are spatiotemporal salinity in the San Francisco Bay at a number of instruments over a few days. The thing that I want to fit is the initial condition for a salt transport model at the beginning of this time period. The spline basis functions, parameters and curvature penalties would all be purely spatial, though t...

...web/views/MachineLearning.html 2b) https://cran.r-project.org/web/views/Bayesian.html 2c) https://cran.r-project.org/web/views/ExtremeValue.html 2d) https://cran.r-project.org/web/views/FunctionalData.html 2e) https://cran.r-project.org/web/views/Robust.html 2f) https://cran.r-project.org/web/views/SpatioTemporal.html 2g) https://cran.r-project.org/web/views/Spatial.html Left out several Task Views since they might be probably too "ordinary", but you should look at all of them: https://cran.r-project.org/web/views/ Other websites possibly outlining areas of possible difference: https://tenso...

Hi, and sorry for asking such an unspecific question. Does anybody know of statistical / data mining methods that are available in R that are not in SAS ? With SAS I mean the SAS System Version 9.4 and SAS Enterprise Miner. I don't expect a complete list, just two or three examples or hints where and what to look for. I found some older comparisons, and the R methods mentioned there

...ata and ends in meaningful insights. Candidates for this position should: - have experience in modern regression, classification and categorical data analysis - thoroughly understand all core statistical concepts - be skilled in designing efficient algorithms - have experience in visualizations of spatiotemporal data - have experience in condensing large data sets into various views and hierarchically organized summaries. Requirements - M.S. in statistics or computer science or related field with 2+ years experience - Experience with a statistical package is required, preferably R, as well as a basic u...

Wildlife Statistician/Spatial Modeler ? Silver Spring, MD Seeking a Wildlife Statistician/Spatial Modeler with demonstrated experience fitting advanced statistical spatial/spatiotemporal models to wildlife survey data. The statistician/modeler will conceive and execute spatial analyses and generate predictive maps of coastal and marine species distributions to support coastal planning. The successful candidate will be employed by CSS-Dynamac, but will join an interdisciplinary a...

Hi all, I have a file of average SWE observations for 40 years at over 4,000 points and am attempting to do a spatiotemporal analysis of the data using PCA, much like this paper did using snow depth: http://journals.ametsoc.org/doi/pdf/10.1175/1520-0442%281998%29011%3C0856%3ATCIRWS%3E2.0.CO%3B2 I have followed the code in the link below by my loadings are far too small (For example, the paper listed above had loading...

...placement from the full vector for the remaining 6 weeks (i.e. 12 more rows extracted). One final condition is that DOW's must not be duplicated for any given WEEK (e.g. I cannot sample two Tuesdays in any one week). The reasoning for my approach is that I want even coverage of all 40 unique spatiotemporal strata in my final data frame. Thank you, Mike ### The following code extracts two rows per week randomly without replacement and ensures that no two ### DOW are duplicated per week, but fails to incorporate even coverage of strata. set.seed(3000) WEEKDAY_STRATA1 <- do.call("rbind...

Hi professors I'm finding the best package in R for manage a big database about vessels. I need to divided the travel of each boat into tracks. I have GPS points. I would join these points in a line on the map. I make that with the function "lines", but I can't divided by vessel or by track, I saw several packages, for tracking animals but they had specifically variables. And I

...ata (2.2.1), REGENT (1.0.4), regress (1.3-7), relevent (1.0-2), Renext (2.0-0), rmongodb (1.0.3), rngSetSeed (0.2-3), RODBC (1.3-5), RSEIS (3.0-1), rworldmap (0.1300), sampleSelection (0.7-0), skmeans (0.2-1), Snowball (0.0-8), SNPRelate (0.9.3), soiltexture (1.2.9), soobench (1.0-73), sp (0.9-97), SpatioTemporal (0.9.2), SPOT (1.0.2257), support.CEs (0.2-1), tabuSearch (1.1), tdthap (1.1-3), textir (1.8-2), timsac (1.2.6), tm.plugin.dc (0.2-1), twang (1.2-5), XLConnect (0.1-9) New reviews ----------- * quantmod, by atomicules http://crantastic.org/reviews/143 This email provided as a service for t...

...ped:20}} ------------------------------ Message: 149 Date: Thu, 28 May 2009 02:42:38 -0700 (PDT) Subject: [R] Delta Kronecker To: r-help@r-project.org Message-ID: <310075.84848.qm@web38305.mail.mud.yahoo.com> Content-Type: text/plain Hi, Could some give some ideas on how to compute the spatiotemporal covariance matrix by a sum of Kronecker products in R. Is there any special function that can be used? Cheers. Firdaus           [[alternative HTML version deleted]] ------------------------------ _______________________________________________ R-help@r-project.org mailing list https://...

...-help at r-project.org Subject: [R] overlay histograms on map at map coordinates Message-ID: <0B1FE6E7-2E3A-4AD0-9199-A1CB88393D10 at berkeley.edu> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Hi all, I'm trying to visualize animal movement data characteristics spatiotemporally by overlaying many different histograms on a map. I want the histograms to be plotted at coordinates in the map that matches a region they describe. If I was just doing this once, I'd fiddle in Illustrator after R and avoid the headache. But I'll be doing it many many times so...