Displaying 20 results from an estimated 10000 matches similar to: "tail probability"
2009 Nov 24
1
Titles in plots overlap
Hi,
I use fCopulae package to draw different graphs of univariate and bivariate skew t. But the plots titles overlap. I tried using cex.main, font.main to adjust the size but they still overlaps. Here is my code:
par(mfrow = c(3, 1))
mu = 0
Omega = 1
alpha1 = 0
alpha2 = 1.5
alpha3 = 2
alpha4 = 0.5
Z1 = matrix(dmvst(x, 1, mu, Omega, alpha1, df = Inf), length(x))
Z2 = matrix(dmvst(x, 1, mu,
2010 Nov 25
1
overlap cdf plots and add colors and etc
Hi r-users,
I would like to overlap 2 ecdf plots.
I tried this below and it gives me two plots of ecdf but just both just in
black.
par(mar=c(4,4,2,1.2),oma=c(0,0,0,0),xaxs="i", yaxs="i")
plot(ecdf(datobs))
lines(ecdf(gam_sum_gen))
Then I try to add colors etc and also the legend but fail.
par(mar=c(4,4,2,1.2),oma=c(0,0,0,0),xaxs="i", yaxs="i")
2010 Mar 31
3
barplot and line
Hi r-users,
I have this data below and would like to plot a barplot overlap with a line.
This is my data:
> hist_50
pdf_obs pdf_gen.50
1 0.000000 0.000000
2 0.083156 0.125366
3 0.132196 0.158230
4 0.126866 0.149432
5 0.120469 0.127897
6 0.121535 0.104096
7 0.103412 0.082171
8 0.082090 0.063539
9 0.065032 0.048408
10 0.050107 0.036470
11 0.036247 0.027236
12
2010 Nov 22
1
need smooth cdf lines
Hi,
I would like to overlap the cdf curve for observed and generated data Here is
my code:
plot(cdf,main ="CDF of the sum for winter
season-Hume",cex.axis=1.2,xlab="Rainfall (mm)",
xaxs="i",yaxs="i",col=c("black","red"), lty=c(1,1),ylab="Cumulative
probability", xlim=c(0,800),lwd=1)
lines(ecdf(datobs))
2010 Feb 19
1
color graph in multiple plots
Hi,
I would like to distinguish my plots using colors but I got error message. How do I correct that?
plot(ecdf(z), main ="CDF for observed and simulated weighted sum",type="l",lwd=2,col="blue",
xlab="Weighted sum (mm)", ylab="Cumulative Percent", xlim=c(0,15), xaxs ='i', yaxs ='i',ylim=c(0,1))
par(new=TRUE)
2013 Jan 21
4
compare and count data
Dear r-users,
I have these data below:
I would like to compare each column with a certain value and count how many in each column less than that specified value.
odd column (1,3,5) will compare with 1.61 and even column (2,4,6) will compare with 75 and I would like to count how many for each column.
I tried these below but it give me just one set of data.
critical <-
2012 Nov 12
3
arrange data
Dear r-users,
I have daily rainfall data from 1971 to 2000. I would like to extract november and december data only. I would also like to do column bind for november and december, therefore I would like to delete 31 December from december data so that the length of november and december are the same. Hope somebody can help me. I tried this below:
> kuantan.dt.1 <-
2010 Jun 04
2
horizontal and vertical line with arrow in a plot
Hi r-users,
I would like to add a plot of vertical line segment with arrow from (77,.6) to (77,0) and also a horizontal line segment with arrow from (0,0.6) to (77,.6) . So far this is what I have:
plot(sq, cdf, type="l", lwd=4,col="blue",xaxs="i",yaxs="i", xlab= "Rainfall (mm)", ylab= "Random no.",
main="Random number and
2009 Sep 07
1
Plot 2 ecdf in one graph
Hi r-users,
I would like to compare the cdf between historical and predicted. My x.obs and x.pre are the frequency data in classes of 0-300.
I tried:
plot(ecdf(x.obs),ecdf(x.pre),type="l",col="red")
and it gives me:
Error in plot.stepfun(x, ..., ylab = ylab, verticals = verticals, pch = pch) :
argument 4 matches multiple formal arguments
Thank you so much for any
2010 Aug 20
7
which one give clear picture-pdf, jpg or tiff?
Hi,
I need some opinion. I would like to use graph that I generate from R code and
save it into word document. Which format is better? pdf, jpeg or tiff?
Thank you.
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2009 Mar 26
2
sum to infinity
Hi r-users,
How do we evaluate the summation of (1/m!) from 0 to infinity (for example).
Any help is very much appreciated.
Thank you.
2009 Oct 12
1
Kolmogorov smirnov test
Hi r-users,
I would like to use Kolmogorov smirnov test but in my observed data(xobs) there are ties. I got the warning message. My question is can I do something about it?
ks.test(xobs, xsyn)
Two-sample Kolmogorov-Smirnov test
data: xobs and xsyn
D = 0.0502, p-value = 0.924
alternative hypothesis: two-sided
Warning message:
In ks.test(xobs, xsyn) : cannot compute correct
2010 May 28
4
vlookup in R?
Hi R-users,
I would like to search for the values of seq that match my rand values. In excel I will use =VLOOKUP(G2,$E$2:$F$32,2). For example, for rand=.262 it will give me approximately seq=120 and rand=0.964293344, seq=460 and etc.
E F G
cdf seq rand
0.00E+00 0 0.262123478
1.56E-03 20 0.964293344
1.55E-02 40 0.494827113
5.30E-02 60
2008 May 12
2
How to eliminate perticular date
Hi R-expert,
I try to eliminate 29 Feb but I got an error message below:
feb_data1 <- Pooraka_data[Pooraka_data$Month=="2",]
feb_28days <- feb_data1 [feb_data1$Day=="28",]
feb_29days <- feb_data1 [feb_data1$Day=="29",]
## delete 29 Feb
feb_no_29 <- feb_data1 [-(feb_29days),]
feb_no_29 <- feb_data1 [-(feb_29days),]
Error in xj[i] : invalid subscript
2010 Feb 22
2
vloopkup or search function
Hi,
Does R has something similar to vlookup function in excel?
Thank you for the info.
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2009 Jan 28
2
extract positive pairs
Hi,
I have a data below and would like to search for positive pairs only and form a new data set.
???????????X1??? ??? ??? ?X2
31.0 9.0
11.0 1.0
1.0 0.0
0.0 0.0
8.0 0.0
0.0 0.0
2.0 2.0
18.0 3.0
0.0 0.0
0.0 0.0
0.0 0.0
10.0 0.0
6.0 0.0
...
The new data will be
X1'?? X2'
31.0 9.0
11.0 1.0
2.0 2.0
18.0 3.0
I tried to write the function as:
y1y2 <-?
2009 Apr 07
2
Maple and R
Hi R-users,
Can Maple function be exported to R?
I have a jacobian matrix (4X4)?from maple in algebraic form which involve modified Bessel function of the first kind.
I just wonder whether we can use algebraic form into R before the value of the parameters can be estimated.
Thank you so much for your attention and help.
2010 Nov 11
3
overlap histogram and density
Hi,
Does anybody encounter the same problem when we overlap histogram and density
that the density line seem to shift to the right a little bit?
If you do have the same problem, what should we do to correct that?
Thank you.
par(mar=c(4,4,2,1.2),oma=c(0,0,0,0))
hist(datobs,prob=TRUE, main ="Volume of a catchment from four
2013 Jul 17
2
error message in gev
Hi r-users,
I would like to use gev and my data (annual rainfall ) is as follows:
> head(dat,20) A B C D E F G H I J
1 45.1 41.5 58.5 50.1 46.0 49.1 37.7 49.1 59.8 54.0
2 50.3 39.8 49.4 56.4 49.4 48.8 42.1 49.8 49.4 58.3
3 41.7 39.3 44.6 39.1 35.7 41.5 40.8 40.8 38.5 45.6
4 50.7 33.9 48.4 28.2 35.5 39.1 61.4 17.0 30.7 38.3
5 39.3 30.6 46.9 23.8 25.8
2010 Mar 28
2
any quick way to write this label
Hi r-users,
Is there any quick way to write this label?
c("0","50","100","150","200","250","300","350","400","450",
"500","550","600","650","700","750","800","850","900")
Thank you.