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
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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)) (a2DÂ 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
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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