search for: geosciences

Displaying 20 results from an estimated 260 matches for "geosciences".

2012 Jul 03
5
Is it possible to remove this loop? [SEC=UNCLASSIFIED]
Hi all, I would like create a new column in a data.frame (a1) to store 0, 1 data converted from a factor as below. a1$h2<-NULL for (i in 1:dim(a1)[1]) { if (a1$h1[i]=="H") a1$h2[i]<-1 else a1$h2[i]<-0 } My question: is it possible to remove the loop from above code to achieve the desired result? Thanks in advance, Jin Geoscience Australia Disclaimer: This e-mail
2019 Apr 02
2
samba 4.10.0 - problem with samba-tool domain provision
...e "/usr/local/samba/lib64/python3.6/site-packages/samba/getopt.py", line 91, in get_loadparm self._lp.load_default() [root at geo22 ~]# I would be thankful for any suggestion on what might be wrong in my setup. Best regards, Andreas Habel -- Andreas Habel Petroleum engineering lab Geosciences | Unix network Faculty of Science and Technology University of Stavanger Norway
2003 Aug 09
1
hosts.equiv and .rhosts
Hi, How to use hosts.equiv and .rhosts in samba and can you please send me an example of them ____________________________________________ Mohammed Al-Shabib Baker <http://www.bakerhughes.com/> Hughes.com Tel. (+973) 586000 Fax (+973) 580626 P.O. box 18199, Manama, Bahrain My <mailto:Mohammed.Al-Shabib@bakerhughes.com> E-Mail Baker Hughes Geoscience
2006 Jan 17
2
Calculation of daily max
Good day everyone. I have a large dataset of 1 min wind speeds covering 5 years. How can I make an array of maximum daily values? The vectors I have are: 'VDATE' with dates in format '%Y-%m-%d' (like '1992-10-28') and 'WS' with wind speed data (same number of elements as VDATE). I want an array with 2 columns: Max daily wind speed and corresponding day. Has
2011 Jan 18
3
tips for looping over a category for beginner
hello, I am very new to R. My current data set is a mix of values and categories. It is a geoscience data set, with values per rock sample. Case in point, each sample belongs to a lithology class, and each sample has several physical property measurements (density, porosity...). I want to be able to plot these physical properties for all samples in each lithology class. this is how i'm doing
2008 Jan 23
5
Linux, UNIX, XP32, Vista X64 or ...? [SEC=UNCLASSIFIED]
Dear All, I am currently using R in Windows PC with a 2 GB of RAM. Some pretty large datasets are expected soon, perhaps in an order of several GB. I am facing a similar situation like Ralph, either to get a new PC with a bigger RAM or else. I am just wondering if R is getting faster in other systems like UNIX or Linux. Any suggestions are appreciated. Regards, Jin
2007 Feb 23
2
Extracting a subset from a dataframe
Good day everyone, Can anyone suggest an effective method to solve the following problem: I have 2 dataframes D1 and D2 as follows: D1: dates ws wc pwc 2005-10-19:12:00 10.8 80 81 2005-10-20:12:00 12.3 5 15 2005-10-21:15:00 12.3 3 15 2005-10-22:15:00 11.3 13 95 2005-10-23:12:00 12.3 13 2 2005-10-24:15:00 10.3 2 95 2005-10-25:15:00 10.3 2 2 D2:
2016 Jun 09
1
cumsum method in Math group
...thods can be defined for them individually or via the ?Math? group generic." -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of M?nster Heisenbergstra?e 2, 48149 M?nster, Germany; +49 251 83 33081 Journal of Statistical Software: http://www.jstatsoft.org/ Computers & Geosciences: http://elsevier.com/locate/cageo/ Spatial Statistics Society http://www.spatialstatistics.info -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 490 bytes Desc: OpenPGP digital signature URL: <https://stat....
2017 Feb 02
1
R Bugzilla down
...Can't connect to the database. Error: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) Is your database installed and up and running? Do you have the correct username and password selected in localconfig? -- Mikko Korpela Department of Geosciences and Geography University of Helsinki
2004 Jul 16
1
median filter
...vailable in R? I have a considerable amount of images as 256 by 256 matrices and want to smooth them with a 5x5 median filter. Until now I'm not lucky in searching the R-help list/files. Thanks, Hanneke ir. J.M. (Hanneke) Schuurmans (PhD student) Department of Physical Geography Faculty of Geosciences, Utrecht University, The Netherlands E-mail: h.schuurmans@geog.uu.nl Telephone: +31(0)30-2532988 (direct), +31(0)30-2532749 (secretary) Fax: +31(0)30-2531145 Visiting address: Heidelberglaan 2, Utrecht Postal address: P.O.Box 80.115, 3508 TC Utrecht [[alternative HTML version deleted]]
2006 Jun 30
1
Empirical CDF
Good day everyone, I want to assess the error when fitting a Gram-Charlier CDF to some data 'ws', that is, I want to calculate: Err = |ecdf(ws) - GCh_ser(ws)| The problem is, I cannot get the F(x) values from the ecdf. 'Summary(ecdf())' returns some of the x-axis values, but how do you get the F(x) values? Thank you for any help you can provide. Regards, Augusto
2007 Aug 08
0
Creating netcdf from table
...values, but the passed data array only has 10573 entries!". So I think the problem is I need an array with two dimensions (coordinates...) for my values. But do I get this from my tables?? Thanks for any help! Thomas My problem now is that __ Thomas Szegvary Institute of Environmental Geosciences Department of Geosciences University of Basel Bernoullistrasse 30 CH - 4056 Basel Tel. 41-61-267 04 82 Fax. 41-61-267 04 79 Email: t.szegvary at unibas.ch www.radon.unibas.ch www.unibas.ch/environment
2007 Sep 12
1
install R packages [SEC=UNCLASSIFIED]
Hi All, I installed R 2.5.1 recently on a PC (Windows XP Professional 2001) and tried to install some R packages. It took several minutes and gave me the following message. > utils:::menuInstallPkgs() --- Please select a CRAN mirror for use in this session --- Error in open.connection(file, "r") : unable to open connection In addition: Warning message: unable to connect to
2008 Sep 14
1
Data format for BiodiversityR
...Please, I really find problems having the program read my datasets (here attached). Have converted datasets to csv, imported but always not reaching the target. Would be very happy if some one out can help me on time. Thanks Ndoh Mbue Innocent International corporation office China University of Geosciences 388 Lumo road 430074, Wuhan-China Tel: 0086 27 67885947/0086 15927262962 A gentlemen should be truly a moral person, a straightforward and reliable personality,in solidarity with the community and rooted in self rescpect
2011 Jul 13
1
Plotting parametrized curves (2D or 3D)
...t)) (a2D  circle) or (cos(t), sin(t), t) (a 3D helix). It seems that neither curve(), plot(), nor persp() are helpful for that particular problem. I bet I?m not the first one missing this functionality and it probably already exists somewhere. Thanks for any hints. Toni Menninger Department of Geosciences University of Arkansas [[alternative HTML version deleted]]
2017 Aug 30
0
FW: Predictive accuracy measures in a recently released R package, spm: Spatial Predictive Modelling [SEC=UNCLASSIFIED]
Hi All, Just thought you might be interested in a recently released R package, spm: Spatial Predictive Modelling. It aims to introduce some novel, accurate, hybrid geostatistical and machine learning methods for spatial predictive modelling. Of 22 functions available in spm, two functions are for accuracy assessment. Perhaps they are not only useful tools for spatial predictive modelling
2016 May 18
3
[patch] Error in reg-tests-1c.R (R-devel)
...C_MONETARY=fi_FI.UTF-8 LC_MESSAGES="en_GB" LC_PAPER="en_GB" LC_NAME="en_GB" LC_ADDRESS="en_GB" LC_TELEPHONE="en_GB" LC_MEASUREMENT="en_GB" LC_IDENTIFICATION="en_GB" LC_ALL= -- Mikko Korpela Department of Geosciences and Geography University of Helsinki -------------- next part -------------- A non-text attachment was scrubbed... Name: reg-tests-1c.diff Type: text/x-patch Size: 739 bytes Desc: not available URL: <https://stat.ethz.ch/pipermail/r-devel/attachments/20160518/c44ebe50/attachment.bin>
2018 Apr 03
0
xgboost: problems with predictions for count data [SEC=UNCLASSIFIED]
Hi All, I tried to use xgboost to model and predict count data. The predictions are however not as expected as shown below. # sponge count data in library(spm) library(spm) data(sponge) data(sponge.grid) names(sponge) [1] "easting" "northing" "sponge" "tpi3" "var7" "entro7" "bs34" "bs11"
2003 Nov 28
1
compile problem with gzfile
...all.rda' A check for the file 'all.rda' showed that it does not exist. I do have gzip installed and I have libz.so.1.1.4 in /usr/local/lib. I realize this isn't much to go on, but does anyone have an idea what might be wrong? Has anyone had a similar error? -- William D. McCoy Geosciences University of Massachusetts Amherst, MA 01003
2016 Sep 27
2
library() asks user to accept license of some built-in packages
...quot;]], "base")) return() to the beginning of checkLicense(), or add more packages to the hard-coded exemption list checked before calling checkLicense(). Also, in find.package(), the shortcut list of standard packages is missing "compiler". -- Mikko Korpela Department of Geosciences and Geography University of Helsinki