Displaying 20 results from an estimated 500 matches similar to: "Satellite ocean color palette?"
2008 Jun 20
1
World Ocean Database files
Has anyone written a script or function to read data from NODC?s World
Ocean Database files?
(I know there are simple Fortran and C programs to read these files, but
the output is not suitable for easy analysis)
Thanks, Franz
_____________________________________________________
Dr. Franz J. Mueter
School of Fisheries and Ocean Sciences, Juneau Center
University of Alaska Fairbanks
11120
2007 Jul 02
1
download.file - it works on my Mac but not on Windows.
Hi:
I am working with someone remotely to allow them access to our data.
The follow command using "download.file" works perfectly on my Mac:
> > download.file(url="http://oceanwatch.pfeg.noaa.gov:8081/thredds/
> wcs/satellite/AG/ssta/14day?
> request=GetCoverage&version=1.0.0&service=WCS&format=NetCDF3&coverage=
>
2011 Jan 23
0
Madogram, rodogram, semi-variogram of satellite imagery
Greetings!
Is there in any package for R which can help me generate madogram, rodogram,
semi-variogram, cross variogram from landsat imagery. I intend to select
portions of large imagery (i.e., obtain subsets) and generate the above said
texture layers. A simple Google search led to me a result suggesting
SpatialExtremes for generating madograms. However I am not sure about its
capability to
2018 Jan 02
4
httr::content without message
Hi All:
I am using httr to download files form a service, in this case a .csv file. When I use httr::content on the result, I get a message. Since this will be in a package. I want to suppress the message, but haven't figured out how to do so.
The following should reproduce the result:
myURL <-
2004 Jun 14
5
adjusting color palette
Is there a way to increase the "sensitivity" of the color palette in order
to more clearly represent certain sections of data? For example I am
wanting to clearly differentiate between height data for a rolling
landscape but because of the extremes of the dataset (sea and mountain
tops), the bulk of the landscape is shaded in closely approximating green
- i have attempted to do this by
2009 May 11
1
R and McAfee 8.5
Hi,
I have been working with R for the last year and using the UKFSST package to look at satellite tag track data and SST information. Fpr those not familiar, the package uses the positions estimated by the satellite tags themselves and the associated SST data from servers (in this case, from the University of Hawaii and the NOAA Coastwatch website) for the time preiod to estimate a reasonable
2006 Jan 07
2
need palette of topographic colors similar to topo.colors()
Dear useRs,
I got stuck trying to generate a palette of topographic colors that
would satisfy these two requirements:
- the pallete must be 'anchored' at 0 (just like on a map), with
light blue/lawn green corresponding to data values close to 0 (dark
blue to light blue for negative values, green-yellow-brown for
positive values)
- the brown must get darker for higher positive
2009 May 26
4
Creating multiple graphs based on one variable
Dear List,
I would like to create several graphs of similar data. I have x and y values for several different individuals (in this case fish). I would like to plot the x and y values for each fish separately. I can do it using a for loop, but I think I should be using "apply". Please let me know what I am doing wrong, or if there is a "better" way to do this. What I have
2009 May 26
2
Problem with fractional seconds
Dear List,
I am having problems converting a file with fractional seconds to class POSIXct. I have set my options to include digits.secs and my format to just time, but my output is the current date with my time lacking the fractions of a second. For example:
options(digits.secs=3)
t<-c("06:00:00.100","06:00:01.231")
myt<-as.POSIXct(t,format="%H:%M:%S")
2018 Nov 30
8
[PATCH RFC 00/15] Zero ****s, hugload of hugs <3
On Fri, 30 Nov 2018, Kees Cook wrote:
>On Fri, Nov 30, 2018 at 11:27 AM Jarkko Sakkinen
><jarkko.sakkinen at linux.intel.com> wrote:
>>
>> In order to comply with the CoC, replace **** with a hug.
I hope this is some kind of joke. How would anyone get offended by reading
technical comments? This is all beyond me...
Thanks,
Davidlohr
2009 May 22
5
Need a faster function to replace missing data
Dear List,
I need some help in coming up with a function that will take two data sets, determine if a value is missing in one, find a value in the second that was taken at about the same time, and substitute the second value in for where the first should have been. My problem is from a fish tracking study. We put acoustic tags in fish and track them for several days. Location data is supposed
2008 Nov 07
2
Faster way to combine data sets with different date ranges
I am trying to combine two data sets, one with daily values and one with weekly values. SurveyData conatins environmental data collected on a daily basis. sat.data contains satellite sea surface temperature that is an average of satellite measurements over a six day period. I would like to combine the two files so that my output file has the daily dates from SurveyData and the weekly average
2011 Apr 21
2
Converting 16-bit to 8-bit encoding?
Hello all-
I have a question related to encoding. I'm using a seperate program which
takes either 16 bit or 8 bit (flat binary files) as inputs (they are raster
satellite imagery and the associated quality files), but can't handle both
at the same time. Problem is the quality and the image come in different
formats (quality- 8bit, image- 16bit). I need to switch the encoding on the
2010 Aug 13
2
Kalman filter
Dear All,
Could anyone?give me a hand?to suggest few packages in R to running Kalman
prediction and filtration ?
Thanks
Fir
2003 Jul 30
2
STL- TimeSeries Decomposition
Dear R Helpers,
Currently I'm working with the ts package of R and created a TimeSerie
from pixels extracted from satellite imagery(S10 NDVI data, 10 daily
composites). I'm trying to decompose this signal in different signals
(seasonal and trend).
When testing out the STL method is says => Only univariate timeseries
are allowed, but the current Timeserie I'm using is univariate!
2009 Aug 13
3
Finding minimum of time subset
Dear List,
I have a data frame of data taken every few seconds. I would like to subset the data to retain only the data taken on the quarter hour, and as close to the quarter hour as possible. So far I have figured out how to subset the data to the quarter hour, but not how to keep only the minimum time for each quarter hour.
For example:
2009 Sep 28
2
Data formatting for matplot
Dear List,
I am wanting to produce a multiple line plot, and know I can do it with matplot but can't get my data in the format I need. I have a dataframe with three columns; individuals ID, x, and y. I have tried split() but it gives me a list of matrices, which is closer but not quite what I need. For example:
id<-rep(seq(1,5,1),length.out=100)
x<-rnorm(100,5,1)
2015 Jan 16
2
Socket behavior change from 6.5 to 6.6
A couple more thoughts...
On Jan 16, 2015, at 10:42 AM, Warren Young <wyml at etr-usa.com> wrote:
> On Jan 15, 2015, at 11:40 AM, Glenn Eychaner <geychaner at mac.com> wrote:
>
>> When the DOS box exits, crashes, or is rebooted, it fails to shut down the
>> socket properly.
>
> Yes, that?s what happens when you use an OS that doesn?t implement sockets in
2003 Apr 26
3
PCA
Hi, I have a dataset of dimensions 50 x 15000, and tried to use princomp or prcomp on this dataset with 15000 columns as variables, but it seems that the 2 functions can;t handle this large number of columns, anyone has nay suggestions to get around this? Thanks
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2012 Jan 13
3
The Future of R | API to Public Databases
Dear R Users -
R is a wonderful software package. CRAN provides a variety of tools to
work on your data. But R is not apt to utilize all the public
databases in an efficient manner.
I observed the most tedious part with R is searching and downloading
the data from public databases and putting it into the right format. I
could not find a package on CRAN which offers exactly this fundamental