Displaying 20 results from an estimated 116 matches for "sst".
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2013 Apr 17
0
R question
...Philippos,
Try this:
dat1<- read.csv("Validation_data_set3.csv",sep=",",stringsAsFactors=FALSE) #converted to csv
str(dat1)
#'data.frame':??? 12573 obs. of? 17 variables:
# $ Removed.AGC????????????????????????????? : num? 65.67 46.17 41.26 14.09 5.38 ...
# $ Removed.SST????????????????????????????? : chr? "" "46.1658" "41.2566" "14.0931" ...
# $ Removed.Kurtosis???????????????????????? : num? NA NA NA NA 5.38 ...
# $ Removed.Skewness???????????????????????? : num? 65.67 46.17 41.26 14.09 5.38 ...
# $ Removed.QC17999?????????...
2009 Feb 20
3
mean over previous cells
Dear RUsers,
I guess this is an easy question for someone a little familiar with
programming...(which I am not)...
I've got 2 colummns, one shows just dates(SST_date, Class 'Date' num), the
other one shows the SeaSurfaceTemperature (SST, num) at that certain date.
SST_date SST
2008-01-01 22.2
2008-01-02 21.8
2008-01-03 22.8
2008-01-04 22.9
2008-01-05 23.1
2008-01-06 23.2
...
...
now, I would like to add a column that shows the mean SST ove...
2011 Dec 12
2
i can't read large NETCDF file like CRU
i use library(ncdf) to read this file as follow
library(ncdf)
sst.nc = open.ncdf(title)
lonall = get.var.ncdf(sst.nc,'lon')
latall = get.var.ncdf(sst.nc,'lat')
precip = get.var.ncdf(sst.nc,'pre')
close(sst.nc)
if i use this method my pc freeze and not respond until i restart it is
there
--
View this message in context: http://r.789695.n4...
2012 Nov 16
2
R-Square in WLS
Hi,
I am fitting a weighted least square regression and trying to compute
SSE,SST and SSReg but I am not getting SST = SSReg + SSE and I dont know
what I am coding wrong. Can you help please?
xnam <-colnames(X) # colnames Design Matrix
fmla1 <- as.formula(paste("Y ~",paste(xnam, collapse= &qu...
2009 Oct 29
1
singular variance-covariance warning in lmer
Dear R Users,
I was hoping for some help with a recurrent error message in lmer. I am trying to model the effect of temperature on metabolic rate in animals (response = int.length) at different temperatures (mean.sst), with repeated measurements on the same individuals (random effect = female). Ideally I would make a random slope and intercept model where the rate can change differently with temperature for different individuals:
model<-lmer(int.length~mean.sst+(mean.sst|female))
However, I get the followi...
2011 May 06
1
read a netcdf file _Fill_value=-32768
...lat:valid_range = -60., 60. ;
float lon(lon) ;
lon:long_name = "longitude" ;
lon:standard_name = "longitude" ;
lon:units = "degrees_east" ;
lon:valid_range = -100., 45. ;
double sst(time, lat, lon) ;
sst:long_name = "sea surface temperature" ;
sst:standard_name = "sea_surface_temperature" ;
sst:units = "K" ;
sst:_FillValue = -32768. ;
double time(time) ;
time:l...
2009 Nov 20
1
problem selecting 330 to 30 longitude
Hello,
This is probably very simple but I am trying to select a region from the
OIv2 SST dataset that crosses 0 longitude. The longitude variable is
arranged from 0 to 360 and I get an error message when trying to go from 330
to 30 for example. The data are from a NOAA netCDF file.
*temp = open.ncdf("c:/documents and settings/theoni/desktop/sstoi_v2.nc")
print(temp)
y1 = get...
2006 Nov 26
1
GLM and LM singularities
...a GLM or
an LM. I'm looking at factors affecting fish annual catch rates (ie. CPUE)
over 30 years. Two of the factors I'm using are sea surface temperature and
sea surface temperature anomaly. A small sample of my data is below:
CPUE
Year
Vessel_ID
Base_Port
Boat_Lgth
Planing
SST
Anomaly
0.127
1976
2
BOI
40
Planing
19.4
-0.308
0.059
1976
30
BOI
40
Displacement
19.4
-0.308
0.033333
1977
46
BOI
45
Displacement
18.5
-1.008
0.169231
1977
2
BOI
40
Planing
18.5
-1.008
0.044118
1977
19
BOI
34
Planing
18.5
-1.008
0.114286
1977
29
W...
2006 Mar 16
1
filling a matrix with data
Hi,
I've extracted netcdf data in R, and am trying to output it in a matrix
format. I can make the matrix, and I have the data, but I can't get the
matrix to include the data...
I'm not very experienced at using R, so please forgive the crudeness of
these codes...
# For the matrix
wind_dir_data<-matrix( NA, 17, 365 , byrow = FALSE )
wind_speed_data<-matrix( NA, 17, 365,
2011 Nov 17
0
aov how to get the SST?
...-07 ***
Queue_size 1 0.40 0.395 0.2926 0.5888
Residuals 440 594.44 1.351
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
In order to compute the fraction of variation I need to know the total Sum Sq. and I assume it is like this:
SST = SS-No_databases + SS-Partitioning + SS-No_middlewares + SS-Queue_size
= 184.68 + 70.16 + 44.22 + 0.40
= 299.46
So the fraction of variation explained by the No_databases would be:
SST/SS-No_databases = 184.68/299.46 = 0.6167101 ... and finally I can say that the No_databases ex...
2013 Jan 16
1
setting the legend scale in contour plots
Hi,
I'd like to compare SST data for year 2000 with SST for year 2001. I managed
to get filled contour plots showing monthly SST for both years (12 plots for
each year, 24 plots in total). In order to compare year 2000 and year 2001,
however, I'd need to have the same legend scale (same color bar) in both
years plots.
Th...
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 prei...
2007 May 17
4
R2 always increases as variables are added?
Hi, everybody,
3 questions about R-square:
---------(1)----------- Does R2 always increase as variables are added?
---------(2)----------- Does R2 always greater than 1?
---------(3)----------- How is R2 in summary(lm(y~x-1))$r.squared
calculated? It is different from (r.square=sum((y.hat-mean
(y))^2)/sum((y-mean(y))^2))
I will illustrate these problems by the following codes:
2008 Aug 14
1
autocorrelation in gams
...fects of two explanatory variables on chlorophyll.
The data are an annual time-series (so are autocorrelated) and the
relationships are non-linear. I want to account for autocorrelation in
my model.
The model I am trying to use is this:
Library(mgcv)
gam1 <-gam(Chl~s(wintersecchi)+s(SST),family=gaussian,
na.action=na.omit, correlation=corAR1(form =~ Year))
the result I get is this:
Family: gaussian
Link function: identity
Formula:
CPRChl ~ s(wintersecchi) + s(SST)
Parametric coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept)...
2002 May 09
4
Rsquared in summary(lm)
Hello,
I'm doing some linear regression:
>lm<-lm(osas~alp,data)
>summary(lm)
However, the Rsquared in the output of summary() is not the same as the
"standard" Rsquared calculated by spreadsheets, and outlined in
statistical guidebooks, being SSR/SSTO. The output says "multiple
Rsquared", but it is no multiple regression...
What's the difference?
Thanks,
Wouter Buytaert
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Sen...
2007 Jul 04
3
Problem/bug with smooth.spline and all.knots=T
Dear list,
if I do
smooth.spline(tmpSec, tmpT, all.knots=T)
with the attached data, I get this error-message:
Error in smooth.spline(tmpSec, tmpT, all.knots = T) :
smoothing parameter value too small
If I do
smooth.spline(tmpSec[-single arbitrary number], tmpT[-single arbitrary number], all.knots=T)
it works!
I just don't see it. It works for hundrets other datasets, but not for
2020 Feb 12
0
[PATCH 4/4] drm/nouveau/kms/nv50-: Share DP SST mode_valid() handling with MST
Currently, the nv50_mstc_mode_valid() function is happy to take any and
all modes, even the ones we can't actually support sometimes like
interlaced modes.
Luckily, the only difference between the mode validation that needs to
be performed for MST vs. SST is that eventually we'll need to check the
minimum PBN against the MSTB's full PBN capabilities (remember-we don't
care about the current bw state here). Otherwise, all of the other code
can be shared.
So, we move all of the common mode validation in
nouveau_connector_mode_valid() into...
2010 Nov 05
1
prob with legend in my plots!
...one help me with this?
script -
x.date <- as.Date(paste(year, month, day, sep="-"))
ts1.n.e3 <- ts(data.nemr.e3[,3])
z1.n.e3 <- zoo(ts1.n.e3, x.date)
plot(z1.n.e3, ylim = c(min(data.nemr.e3[,3]), max(data.nemr.e3[,5])), col="orange",
main = "Monthly variations of SST in El-Nino3", xlab = "Year", ylab="SST (deg C)")
lines(z2.n.e3, lty = 2, col="red2")
lines(z3.n.e3, lty = 3, col="maroon3", lwd=1)
legend(-0.1, -0.1, legend=c("min", "mean", "max"), lty=c(1,2,3),
col=c("orange", &q...
2007 Jan 26
1
Form of the equation produced by a GLM with Poisson family and log link function
...cally, I want to know how to incorporate the Poisson family and log link function in the equation. I would really appreciate if someone could help me with this or direct me towards literature that would help me do this.
Here are the coefficients from my model:
Call: glm(formula = count ~ slope + sst + chl + dist + ice, family = poisson, data = dfo2003cc)
Coefficients:
(Intercept) slope sst chl dist ice
-6.884e-01 -6.740e-01 5.644e-01 -2.694e+00 -7.278e-05 1.044e-01
Degrees of Freedom: 412 Total (i.e. Null); 407 Residual
Null De...
2008 Nov 03
2
Calculating R2 for a unit slope regression
Does anyone know of a literature reference, or a piece of code that can help me calculate the amount of variation explained (R2 value), in a regression constrained to have a slope of 1 and an intercept of 0?
Thanks!
Sebastian
J. Sebastián Tello
Department of Biological Sciences
285 Life Sciences Building
Louisiana State University
Baton Rouge, LA, 70803
(225) 578-4284 (office and lab.)