search for: climatology

Sorry for re-posting the question, I did not get any reply. Kindly reply please if any one can. ### Hello R users, I have a montly time series over a several year period. It's easy to compute a monthly climatology (12 values), Now, I would like to calculate the corresponding standard deviation, ie the 12 values calculated from the january values, february values, etc. What's the best way for such a calculation ? Regards, Yogesh -- Yogesh K. Tiwari (Dr.rer.nat), Scientist, Indian Institute of Tropical M...

I have an irregular time series, which cannot easily be converted to a ts object (long stretches with NA). I have calculated the climatological mean and st.dev, but need help on how to calculate the anomalies from the climatology and my original data set. Below is an example, where I have indicated the basic idea of what I want to do under Question 1 and 2. I assume I will have to create a custom function or use one of the apply functions, but I would greatly appreciate any help on how this can be achieved. # sample of da...

Hello R users, I have a montly time series over a several year period. It's easy to compute a monthly climatology (12 values), Now, I would like to calculate the corresponding standard deviation, ie the 12 values calculated from the january values, february values, etc. What's the best way for such a calculation ? Regards, Yogesh -- Yogesh K. Tiwari (Dr.rer.nat), Scientist, Indian Institute of Tropical M...

...imension of a multi-dimensional array.) I'm talking about many single linear fits, not about a multiple fit. I thought that a combination of apply and lm would do it but I can't make it work Thank you Kostas -- Kostas Douvis PhD Student University of Athens - Department of Geography and Climatology Academy of Athens - Research Centre for Atmospheric Physics and Climatology email: cdouvis at geol.uoa.gr tel: +30-210-8832048

University of California Merced Merced, CA Programmer Analyst II/III (Research Assistant) Job Code SSNRI723A Open until filled. ? In the Sierra Nevada Research Institute at UC Merced, act in support of research in applied climatology and statistical modeling for wildfire, energy and water resource management applications and assist the Principle Investigator with the development of software, management of data sets and design, modification, and implementation of systems for modeling and analysis.? Develop software libraries...

Hi there In the course of my diploma thesis in climatology I have encountered a difficult R-Problem that I cannot solve. I want to fill R-Objects (whose names should depend on j) with numbers at the i-th position. The resulting Objects should be something like: RQuadratStep1, RQuadratStep2, RQuadratStep3 ... filled with Elements like c(0.324, 0.456, 0...

...the same matching in a matrix and get a matrix without NA elements (and less colums of course)? matrix <- array(1:5*2, dim=c(5,2)) matrix[,1] <- a matrix[,2] <- b matrix[,][(!is.na(matrix[,]))] Gives me always a vector not a matrix. Thanks a lot for any hint, Fabian -- Fabian Lienert, Climatology Student ETH Zurich, Switzerland

...(j in 1:25) { lat[i,j]<-i+((j-12.5)^2)/100 lon[i,j]<-j+((i-10)^2)/100 elev[i,j]<-i+j } } All 3 matrices have dimensions 20x25. How can I plot elev values in the grid points defined by lat and lon? -- Kostas Douvis PhD Student University of Athens - Department of Geography and Climatology Academy of Athens - Research Centre for Atmospheric Physics and Climatology email: cdouvis at geol.uoa.gr tel: +30-210-8832048

Dear List, I am struggling with the trellis graphic. A similar problem was mentioned here: http://r.789695.n4.nabble.com/R-How-can-you-get-N-replicates-of-a-multi-screen-multivariate-time-series-plot-td811850.html I do have 2 time series data sets. The 2 time series differ in some orders of magnitude. I managed to plot them into 1 graph, but, since the data is that different, on of the data

...Mb in a PC with 2 GigaByte RAM. Is there something that I can do to handle this problem of reading big netCDF files with R-project. I look forward for your help. Prodromos Zanis **************************************************** Dr. Prodromos Zanis Research Centre for Atmospheric Physics and Climatology Academy of Athens 3rd September 131, Athens 11251, Greece Tel. +30 210 8832048 Fax: +30 210 8832048 e-mail: pzanis@geol.uoa.gr Web address: http://users.auth.gr/~zanis/ ***************************************************** [[alternative HTML version deleted]]

...t's say from 500 to 600. In order to make clear what I'm trying to do, I attached a figure. Is it possible to do this in R? Thanks for your help Nick _____________________________________________________________ Nicolas Schneider, PhD Student University of Bern Institute of Geography Climatology & Meteorology Hallerstrasse 12 CH-3012 Bern phone +41-31-631-8542 fax +41-31-631-8511 email schneid at giub.unibe.ch -------------- next part -------------- A non-text attachment was scrubbed... Name: axis.jpg Type: image/jpeg Size: 18949 bytes Desc: axis.jpg Url : https://stat.ethz.ch/piper...

...ssession a netcdf from which I want to extract some data files. I have used the "ncdf" package to read the netcdf file and used the "get.var.ncdf" function to identify the variable i wish to use. The data is in the form of a time-series of geographical data points that relate to climatology variables. As such I have a large data frame, "clim", of the following dimensions: [720, 360, 132] The 720 and 360 values relate to longitude and latitude points on the globe and there are 132 different time-series grids. What I wish to do is extract each of the individual time-series d...

...t;- dafSamp[,2] * Ay[which(Ay[,1]==dafSamp[,1]),2] / Ag University of Aarhus <http://www.au.dk/en> Danmarks Miljøundersøgelser <http://www.dmu.dk/> Hvidberg, Martin <http://www2.dmu.dk/1_Om_DMU/2_medarbejdere/cv/employee2_NH.asp?PersonID=MHV> Senior Geographer (Climatology, Spatial modeling) <http://www.geogr.ku.dk/> N 55°41m43.48s E 12°06m05.13s ETRS89 National Environmental Research Inst. <http://www.dmu.dk/International/> P.O. Box 358 Frederiksborgvej 399 DK-4000 Roskilde Martin.Hvidberg@dmu.dk www.dmu.dk/AtmosphericEnvironment/ tel: fax: +45...

...f experience developing web apps in Ruby, Python, Java or Clojure - Team player who feels at home in an open and flat-structured environment, and takes pride in a job well done *What We Offer:* Our team is composed of some of the most brilliant interdisciplinary minds in the industry. Climatology Specialists, Big Data Engineers, Mathematicians, Front end Application Engineers and more work together to create the most forward thinking technology in the industry. The environment is extremely engaging and fast-paced, with dozens of specialties coming together to provide the best product po...

Hi there, perl6 offers with the NativeCall package a great tool to implement other languages into perl scripts. This has already been done with python, C(++) and perl5. For my use cases - lots of data munging and statistical analyses (climatology/meteorology) - it would be perfect to parse data and call/run models from perl6 and then to do plotting and analyses in R. I saw R does have some C-interface so an implementation should be possible, right? I'm not good in that kind of programming, so is there maybe someone out there, that likes...

...comments and suggestions during the development process of this package and This Rutishauser for testing the package from the user's perspective. ------------------------------------------------------------------------ Pavel Michna (PhD Student) Tel: +41 (0)31 631 85 42 Climatology and Meteorology (KLIMET) Fax: +41 (0)31 631 85 11 Institute of Geography E-Mail: michna at giub.unibe.ch University of Bern Hallerstrasse 12 CH-3012 Bern/Switzerland _______________________________________________ R-packages mailing list R-packages at stat.math.ethz...

Dear Sir I have successfuly downloaded R package. Kindly let me know where i will get _/*user mannual*/_ for the same. awaiting a prompt reply with regards Pankaj @#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@ Pankaj Kumar Research Scholar Climatology & Hydrometeorology Divison Indian Institute Of Tropical Meteorology Homi Bhabha Road, Pune-411008 India Phone No. +91-20-5893600 Ext. 361 (Work) +91-20-5897381 (Home) Fax: +91-20-5893825 E-mail: pankaj at tropmet.res.in pinku_1975 at yahoo.com

....))$coef I only receive the estimate of the reg. coefficient without std. error and t- and p-values. Dou you have any suggestion how to solve my problem? With kind regards Prodromos Zanis **************************************************** Dr. Prodromos Zanis Centre for Atmospheric Physics and Climatology Academy of Athens 3rd September, Athens 15784, Greece Tel. +30 210 8832048 Fax: +30 210 8832048 e-mail: pzanis@geol.uoa.gr Web address: http://users.auth.gr/~zanis/ ***************************************************** [[alternative HTML version deleted]]

...matrix with the dimensions 1000x10000 and it worked without an error message. test <- matrix(rnorm(10000000), ncol=1000, nrow=10000) pc <- prcomp(test) Any hints are welcome. Many thanks in advance and best regards, Carlo ****************************************************** Carlo Casty Climatology and Meteorology Phone: +41 (0)31 6318545 Institute of Geography Fax: +41 (0)31 6318511 University of Bern e-mail:casty at giub.unibe.ch Hallerstr. 12 www.giub.unibe.ch/~casty 3012 Bern/SWITZERLAND

...edf[1] ) & pred2 vs s(pred2, edf[2] ) I would like to know if there is a way to access to those terms (s(pred1) & s(pred2)). Does someone know how? the purpose is to access to equation of smooths terms in order to have the equation of my additive model. best regards, -- Yves Magliulo, Climatology research departement <ym at climpact.com> Climpact