[R] 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. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] newton method
Hi R-users, Does R has a topic on newton's method? Thank you for the info. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] 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 - read.csv(genX1X2.csv, header=FALSE) (y1y2[,1] 0 ) (y1y2[,2]0) cbind(y1y2[,1],y1y2[,2]) Thank you for your help. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] recursive term
Hi,
I would like to write a function for this formula:
F(a,b,c,z)=1+(ab)/(1!c)+ +(a(a+1)b(b+1))/(2!c(c+1))+
+(a(a+1)(a+2)b(b+1)(b+2))/(3!c(c+1)(c+2))+…
I wrote this function but not sure what is not right:
hypergeo_sum - function (a,b,c,z,n)
{ for (i in 1:n)
{ aa - 1+(a*b*z)/c
aa[i] - (aa-1)*(a+i)*(b+i)*z/((i+1)*(c+i))
comb_sum - aa + aa[i]+ aa[i+2]
}
comb_sum
}
hypergeo_sum (1.25,1.75,1.25,0.5,3)
output:
hypergeo_sum (1.25,1.75,1.25,0.5,3)
[1] 2.394531 NA 1.039062
The answer should be 2.852539.
Or can you suggest any R book that I can refer to. Thank you so much for your
help.
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[R] hypergeometric function
Hi, I hope somebody can help me on how to use the hypergeometric function. I did read through the R documentation on hypergeometric but not really sure what it means. I would like to evaluate the hypergeometric function as follows: F((2*alpha+1)/2, (2*alpha+2)/2 , alpha+1/2, betasq/etasq). where alpha - .75; beta1 - 7 ; beta2 - 5.5; etasq - ((beta1+beta2)/(2*beta1*beta2*(1-rho))) ^2 betasq - ((beta1-beta2)^2+4*beta1*beta2*rho)/(4*beta1^2*beta2^2*(1-rho)^2) I’m not sure which function should be used- either phyper or qhyper or dhyper Thank you so much for your help. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] histogram
Hi r-expert, I would like to plot histogram using frequency not density. But I got the following warning. obs.hist - hist(jan_data2[,4],right=FALSE,breaks=c(0,5,10,15,20,100),freq=TRUE, + xlab=Rain amt (mm),ylim=c(0,3000), + main=Frequency of observed, Jan (1901-1990), Pooraka) Warning message: In plot.histogram(r, freq = freq1, col = col, border = border, angle = angle, : the AREAS in the plot are wrong -- rather use freq=FALSE I don't really understand the warning message and hope anybody can help me. Thanks in advance for your help. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] How to swap and rearrange rows?
Dear R-expert, How to swap and rearrange the row so that I will have Jan-Dec in order? est31 p0 est.alpha est.beta est.rate Jan 0.8802867 0.7321440 7.241757 0.1380880 Mar 0.8598566 0.7096567 7.376367 0.1355681 May 0.6204301 0.8657272 6.036106 0.1656697 July 0.5032258 0.9928488 4.027408 0.2482986 Aug 0.5322581 0.9625738 4.103121 0.2437169 Oct 0.6792115 0.8526226 5.105218 0.1958780 Dec 0.8397849 0.7490287 7.070349 0.1414357 est30 p0 est.alpha est.beta est.rate Apr 0.7296296 0.7929348 6.303877 0.1586325 Jun 0.5574074 0.8588608 5.695905 0.1755647 Sept 0.607 0.9031150 4.594891 0.2176330 Nov 0.7725926 0.7600906 5.636366 0.1774193 est28 p0 est.alpha est.beta est.rate Feb 0.877262 0.6567584 8.708051 0.1148363 Thank you so much. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] How to paste graph from R in Latex?
Dear R-expert, Is it possible to save graph from R into Latex document? I can see save as metafile , PNG, pdf etc, but I'm not sure which one to use. Thank you so much for your help. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] plot 2 bars
Hi r-expert, How do I plot this 2 histogram side by side so that it is easy to compare for bin range 0,5,10,15, 20 and more obs_data pre_gam [1,] 2695 2677.284 [2,] 43 61.101 [3,] 20 29.016 [4,] 14 11.160 [5,] 18 11.439 Thanks in advance. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] 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 type 'list' Thank you so much for your attention. [[elided Yahoo spam]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] histogram
Dear R-expert, For histogram function, can we get the table of bin and frequency like in excel, together with the histogram? Therefore, we can check the number of data included. Thank you so much for your attention and help. [[elided Yahoo spam]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] convert S-Plus function to R function
Hi R-expert,
If I have this daily rainfall data, how do call a particular set of data?
Year,Month,Day,Amount
1981,1,1,0
1981,1,2,0
1981,1,3,78
1981,1,4,22
1981,1,5,2
1981,1,6,0
1981,1,7,0
1981,1,8,0
1981,1,9,0
1981,1,10,10
1981,1,11,0
1981,1,12,108
1981,1,13,328
1981,1,14,10
1981,1,15,0
1981,1,16,6
1981,1,17,0
1981,1,18,28
1981,1,19,0
1981,1,20,0
1981,1,21,0
1981,1,22,0
1981,1,23,0
1981,1,24,0
1981,1,25,32
1981,1,26,0
1981,1,27,2
1981,1,28,0
1981,1,29,2
1981,1,30,0
1981,1,31,0
1981,2,1,0
1981,2,2,118
1981,2,3,0
1981,2,4,0
1981,2,5,0
1981,2,6,12
1981,2,7,0
1981,2,8,0
1981,2,9,46
1981,2,10,4
1981,2,11,0
1981,2,12,0
1981,2,13,0
1981,2,14,0
1981,2,15,0
1981,2,16,0
1981,2,17,0
1981,2,18,0
1981,2,19,0
1981,2,20,0
1981,2,21,4
1981,2,22,16
1981,2,23,0
1981,2,24,0
1981,2,25,2
1981,2,26,0
1981,2,27,0
1981,2,28,0
1981,3,1,0
1981,3,2,0
1981,3,3,0
1981,3,4,0
1981,3,5,0
1981,3,6,0
1981,3,7,0
1981,3,8,0
1981,3,9,106
1981,3,10,10
1981,3,11,0
1981,3,12,0
1981,3,13,0
1981,3,14,0
1981,3,15,32
...
For example, if I would like to extract january and february data, and use
1/1/1901 as the origin. How do I use the dates function in R ? I did try to
lookup in the manual, but not sure how to apply it?
This is my code in S-plus.
define.date1-function(dt1,mt1,mt2,nn,da)
{ mt2-mt2+1
start-julian(mt1, 1, nn, origin=c(month=1, day=1, year=1971))+1
end-julian(mt2, 1, nn, origin=c(month=1, day=1, year=1971))+da
a-dt1[start:end,]
am-as.matrix(a[,5])
}
Thank you so much for your kind attention and help.
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[R] to extract particular date/data
Hi R-expert, If I have this daily rainfall data, how do call a particular day? Year,Month,Day,Amount 1900,12,22,1.3 1900,12,23,0 1900,12,24,0 1900,12,25,0 1900,12,26,0 1900,12,27,0 1900,12,28,0 1900,12,29,4.8 1900,12,30,0.3 1900,12,31,0.5 1901,1,1,0 1901,1,2,3 1901,1,3,0 1901,1,4,0.5 1901,1,5,0 1901,1,6,0 ... I used to use julian.date in S-Plus. Thank you so much for your kind attention and help. [[elided Yahoo spam]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] looping problem
Dear r-expert,
I would like to generate 30 sets of random numbers from uniform distribution
(0,1). Each set of random numbers should have 90 data. Here is my code:
rand.no - function(n,itr)
{ for (i in 1:itr)
{rand.1 - runif(n,0,1)
if (i ==1) rand.2 - rand.1
else rand.2 - cbind(rand.2,rand.1)
}
rand.2
}
Question: The code is okay is just that it give me 31 sets instead of 30 sets.
Can anybody any adjustment to my code.
Your help is really appreciated.
Thank you.
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[R] looping problem
Hi R-users,
I would like to do looping for this process below to estimate alpha beta from
gamma distribution:
Here are my data:
day_data1 -
123456 789 10 11 12 13 14 15
16 17 18 19 20 21 22 23
1943 48.3 18.5 0.0 0.0 18.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 0.0 0.0
0.0 0.0 0.0 0.0 0.0 0.0 0.8 2.8
1944 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
0.0 6.6 0.0 0.0 0.0 0.0 0.0 0.0
1945 5.3 0.0 0.0 0.0 0.0 2.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
0.0 5.3 0.0 0.0 0.0 0.0 0.0 0.0
1946 0.0 0.0 0.0 0.0 0.0 2.3 0.0 0.0 0.0 0.0 4.8 0.3 1.5 0.0 0.8
0.0 0.0 5.8 70.6 12.4 0.5 23.6 0.0
1947 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
2.0 0.0 0.0 0.0 2.8 0.0 0.0 0.0
1948 0.3 20.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.5 0.5 0.0 0.0 0.0
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
## To extract all the positive values
x1 - day_data1[,1]
x2 - day_data1[,2]
x3 - day_data1[,3]
x4 - day_data1[,4]
x5 - day_data1[,5]
tol - 1E-6
a1 - x1[x1tol]
a2 - x2[x2tol]
a3 - x3[x3tol]
a4 - x4[x4tol]
a5 - x5[x5tol]
library(MASS)
## Example January Charleville 1943-2007
fitdistr(a1,dgamma, list(shape = 1, rate = 0.1), lower = 0.01)
fitdistr(a2,dgamma, list(shape = 1, rate = 0.1), lower = 0.01)
fitdistr(a3,dgamma, list(shape = 1, rate = 0.1), lower = 0.01)
fitdistr(a4,dgamma, list(shape = 1, rate = 0.1), lower = 0.01)
fitdistr(a5,dgamma, list(shape = 1, rate = 0.1), lower = 0.01)
Here is my code:
alpha.beta - function(data,n)
{ tol - 1E-6
{ for (i in 1:n)
xi - data[,i]
ai - xi [xi tol]
fit - fitdistr(ai,dgamma, list(shape = 1, rate = 0.1), lower = 0.01)
}
fit
}
I’m not sure what went wrong since it gives only one output by right 31 outputs.
Thank you for your attention.
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[R] chi-square test
Hi R-users, I would like to find the goodness of fit using Chi-suare test for my data below: xobs=observed data, xtwe=predicted data using tweedie, xgam=predicted data using gamma xobs - c(223,46,12,5,7,17) xtwe - c(217.33,39,14,18.33,6.67,14.67) xgam - c(224.67,37.33,12.33,15.33,5.33,15) chisq.test(xobs, xtwe = xtwe, rescale.p = TRUE) Error in chisq.test(xobs, xtwe = xtwe, rescale.p = TRUE) : unused argument(s) (xtwe = c(217.33, 39, 14, 18.33, 6.67, 14.67)) chisq.test(x, p = p, rescale.p = TRUE) I'm not sure what's wrong with it. Thank you so much for your help. You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. http://tc.deals.yahoo.com/tc/blockbuster/text5.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] tweedie model
Hi R-users,
I have this code below for tweedie inverse, but I don’t understand why it
doesn’t give zero for some of r1 values?
r1 - runif(31,0,1)
p0 - 0.72 ; p - 1.63; mu - 1.48; phi - 9.61
tweedie.inv - function(rand,p0,p,mu,phi)
{ y - rand
ind - rand p0
y[ind] - 0
y[!ind] - qtweedie((rand[!ind]-p0)/(1-p0),p,mu,phi)
cbind (prob=rand,rain.amt=y)
}
tweedie.inv(r1,p0,p,mu,phi)
Thank you in advance for your attention.
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[R] solver in R
Dear R-users, Is there any function in R that works similarly like solver in Excel. I have a set of daily rainfall data and I would like to estimate alpha and beta for the gamma function. Here is my daily rainfall data: [1] 0.2 1.2 0.0 0.0 0.0 0.0 0.0 0.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.8 1.6 0.0 1.8 1.8 0.0 2.6 [24] 33.0 19.0 0.0 0.0 0.6 0.0 0.0 6.8 0.2 0.0 0.0 0.0 0.0 0.2 0.0 0.0 0.0 0.0 0.0 0.0 1.6 5.4 0.0 [47] 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.0 0.0 6.0 6.6 0.0 0.0 0.0 0.0 0.2 0.0 0.0 0.0 0.0 [70] 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12.8 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.0 3.8 2.2 1.2 12.2 3.0 0.0 0.0 [93] 0.0 0.0 5.0 3.6 0.0 0.0 0.0 1.8 1.8 1.2 1.2 1.6 3.6 0.2 0.8 0.0 0.0 0.0 0.0 0.0 1.4 16.6 0.0 [116] 1.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 5.4 [139] 1.6 5.8 0.4 34.2 0.0 0.4 0.4 1.4 1.8 0.0 0.0 0.2 0.0 2.4 24.2 0.4 0.0 0.0 0.0 1.6 0.0 0.0 0.0 [162] 0.0 0.2 0.0 0.0 0.0 4.4 0.0 4.4 21.2 3.0 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 [185] 0.0 0.8 0.8 3.6 0.0 1.2 0.0 0.0 0.0 0.0 0.0 0.0 13.8 1.6 6.6 5.0 0.0 1.2 0.0 1.0 1.2 2.4 6.0 [208] 2.8 7.0 0.2 0.6 0.0 0.0 0.0 0.0 0.0 3.2 0.2 2.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 [231] 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.2 6.6 2.4 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.6 0.0 0.0 0.0 [254] 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 2.6 0.0 0.6 4.8 0.0 0.2 3.8 17.0 0.2 0.0 0.0 0.0 [277] 43.6 2.6 0.0 0.0 0.0 0.4 8.2 14.4 0.2 0.0 0.0 0.0 1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.2 [300] 0.0 Thank you in advance for your help. Looking for last minute shopping deals? __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] mean for each row
Hi r-users, How do find the mean for each row? Thank you in advance for your help. 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 Day Totals 10.0 0.0 0.0 0.0 0.6 0.0 8.4 0.0 29.4 0.0 38.4 20.0 0.0 1.8 0.0 22.4 0.0 0.2 0.4 0.8 0.0 25.6 37.8 0.0 0.0 17.6 1.4 0.0 0.0 0.0 0.0 0.0 26.8 42.2 0.8 0.4 0.0 0.2 11.2 1.4 33.2 0.0 0.0 49.4 50.2 1.8 0.0 1.0 0.0 0.2 0.0 12.2 0.0 19.2 34.6 60.0 0.0 0.0 1.0 0.0 0.0 0.0 2.2 0.0 14.6 17.8 70.0 0.0 0.0 0.0 3.6 0.2 0.0 2.0 0.0 0.26.0 80.0 0.0 10.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10.0 90.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00.0 10 1.0 1.4 0.0 0.0 0.0 1.0 0.4 0.0 0.0 0.03.8 11 0.0 8.2 0.0 0.0 0.0 0.0 8.4 0.0 0.0 0.4 17.0 12 10.8 0.8 0.0 0.0 0.0 0.0 1.0 0.0 0.0 4.2 16.8 13 32.8 0.0 0.0 0.8 0.0 0.0 0.0 0.0 0.2 0.2 34.0 14 1.0 0.0 1.6 0.2 0.0 0.0 0.0 0.0 0.0 0.02.8 15 0.0 0.0 0.0 2.2 1.4 0.0 0.0 0.0 0.0 0.03.6 16 0.6 0.0 0.0 0.6 22.0 0.0 0.0 0.0 0.0 0.0 23.2 17 0.0 0.0 0.0 0.0 0.0 0.0 2.8 0.0 0.0 0.02.8 18 2.8 0.0 0.0 0.0 0.0 0.0 8.2 0.0 0.0 8.2 19.2 19 0.0 0.0 0.0 0.0 0.0 0.2 0.0 0.0 0.0 0.20.4 20 0.0 8.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.08.2 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00.0 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.40.4 23 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.2 0.0 0.01.2 24 0.0 0.0 0.0 0.0 1.0 0.0 0.0 2.0 8.2 0.0 11.2 25 3.2 0.0 0.0 0.6 0.6 0.0 0.0 0.0 11.8 0.0 16.2 26 0.0 0.0 26.2 0.0 12.6 0.0 0.0 2.2 0.0 0.0 41.0 27 0.2 0.0 10.6 0.0 1.2 0.0 0.0 1.8 0.0 0.0 13.8 28 0.0 4.0 0.0 5.8 0.0 0.0 0.0 0.0 0.0 0.09.8 29 0.2 12.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12.6 30 0.0 2.6 0.0 0.0 2.2 0.0 0.0 0.0 0.0 0.04.8 31 0.0 0.0 0.6 0.0 0.8 0.0 0.0 0.0 4.8 0.06.2 Year Totals 62.8 40.2 51.2 29.8 70.0 12.8 30.8 57.2 55.2 47.6 457.6 Be a better friend, newshound, and __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] tweedie model
Hi R users, Anybody using tweedie model to analyze rainfall data? Thanks in advance for your attention. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] quantile-residual plot
Hi, What is quantile residuals? Thank you so much in advance. Be a better friend, newshound, and __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
