Displaying 20 results from an estimated 300 matches similar to: "Reading Input file"
2009 Dec 28
2
Modified R Code
Dear R helpers,
I have following input files. (Actually they are more than 10 rates but here i am considering only 2 rates to write my problem)
rate1.csv
min1 max1 min2 max2 min3 max3
1.05 1.30 1.30 1.65 1.65 1.99
rate2.csv
min1 max1 min2 max2 min3
2012 Mar 15
2
Integrate inside function
Dear R users,
first I take this opportunity to greet all the R community for your
continuous efforts.
I wrote a function to calculate the pdf and cdf of a custom distribution
(mixed gamma model).
The function is the following:
pmixedgamma3 <- function(y, shape1, rate1, shape2, rate2, prev)
{
density.function<-function(x)
{
shape1=shape1
rate1=rate1
shape2=shape2
2004 Jul 09
3
tc filter + bridging + htb -- works only if ip_forward = 0
I thought that the below email would be of interest to LARTC readers. I
wasted quite a bit of time tracking down this "feature" (bug?). Any
comments that shed light on this would be appreciated. In short, "tc
filter" + htb + bridging works only with ip_forward off.
Andrew Athan
-----------------------------------------------------------------------
All:
It seems that
2003 Aug 18
1
Remarking non conformant packets as AF13 from AF11
Hi,
I am trying to implement a simple scaled-down version of the AF traffic
class type. As such I basically want to remark non-conforming AF11
packets to AF13. Here is m script that I have been using on the ingress
router of my network:
----------------------------------------
Link=''dev eth1''
Rate1=''rate 800Kbit''
Rate2=''rate 2500Kbit''
2000 Nov 09
2
simple mixture
Dear All,
I am trying to do some simple mixture analyses. For instance, I have a
sample of n observations and I suspect they come from two different
exponential distributions with parameters rate1 and rate2, respectively.
So, I want to estimate rate1, rate2, and the proportions of both kinds of
individuals in the sample. I had a look at the packages mda and mclust, but
they do not seem to do this
2006 Jan 04
3
TC/CBQ shaping problems
Hello everyone,
I''m a newbie experimenting with CBQ shaping and am facing a few problems.
Can any of you please help?
TEST SETUP:
+---------------+ +----------------+
| 10.0.0.103 |----------->| 10.0.0.102 |
+---------------+ +----------------+
10.0.0.103: Linux, 100Mbit/s NIC
10.0.0.102: Windows, 100Mbit/s NIC, iperf tcp server (ports 2000 and 2001)
WHAT I
2009 Mar 18
2
Three Parameter FRECHET Distribution
Dear R Helpers
Which package is available for estimatine the parameters of three parameter FRECHET distribution. Also, how to generate the random numbers for Frechet using these three estimated parameters.
Thanking in advance
Maithili
2009 Aug 27
2
Comparing and adding two data series
Dear R helpers
I have two series A and B as given below -
A <- c(2, 2, 1, 3, 7, 3, 3, 1, 14, 7, 31)
B <- c(0.0728,0.9538,4.0140,0.0020,2.5593,0.1620,2.513,0.3798, .0033,0.2282, 0.1614)
I need to calculate the total in dataset B corresponding to the numbers in dataset A i.e. for no 1 in A, I need the total as 4.0140+0.3798 (as 1 is repeated twice)
for no 2, I need the total as
2009 Dec 04
2
writing 'output.csv' file
Dear R helpers
Suppose
M <- c(1:10) # length(M) = 10
N <- c(25:50) # length(N) = 26
I wish to have an outut file giving M and N. So I have tried
write.csv(data.frame(M, N), 'output.csv', row.names = FALSE)
but I get the following error message
Error in data.frame(M, N) :
arguments imply differing number of rows: 10, 26
How do I modify my write.csv
2009 Mar 16
1
Fw: Fitting GUMBEL Distribution - CDF function and P P Plot
Dera R Helpers,
I am re-posting my query.
Please guide me.
Maithili
--- On Fri, 3/13/09, Maithili Shiva <maithili_shiva at yahoo.com> wrote:
I am trying to fit the Gumbel distribution to a data. I am
using lmom package. I am getting problem in Cumulative
Distribution Function of Gumbel distribution as I am getting
it as a series of 0's and 1's thereby affecting the
P P
2009 Dec 01
2
Calculation of Central Moments
Dear R helpers
If for a given data, I need to calculate Mean, Standard Deviation, Mode, Median, Skewness, Kurtosis, is there any package in R, which will calculate these moments?
Individually I can calculate these, but if there is any function which will calculate these at a stretch, please let me know.
Maithili
The INTERNET now has a personality. YOURS! See your Yahoo! Homepage.
2009 Feb 06
2
Matrix Multiplication
Hi R helpers,
I have two matrices A and B of the order (4 * 5) and (5 * 3) respectively. How to multiply these two matrices to obtain resultant matrix of the order (4 * 3).
Thanks in advance
With regards
Maithili
2009 Aug 27
2
Fw: PROBLEM - - COMPARING AND COMBINING two DATASETS
Dear Sirs,
?
At the outset I sincerely apologize for reproducing my query to you. I also thank all of you for the solution you had provided. It has worked on the actual data I am working with.
?
However, there is this peculiar problem which I had realized only after I had obtained my results.
?
e.g. in the example I had attached
?
A?<-?c(2, 2, 1, 3, 7, 3, 3, 1,?14, 7, 31)
B?<-
2008 Oct 07
3
How to validate model?
Hi!
I am working on scorecard model and I have arrived at the regression equation. I have used logistic regression using R.
My question is how do I validate this model? I do have hold out sample of 5000 customers.
Please guide me. Problem is I had never used Logistic regression earlier neither I am used to credit scoring models.
Thanks in advance
Maithili
2009 Mar 05
2
Fast Fourier Transform w.r.t. CreditRisk+
Dear R Helpers,
Is there any literaure available (including R code) on Fast Fourier Transform being used in CreditRisk+? I need to learn how to apply the Fast Fourier Transform. I agree I am too vaue in my question and sincerely apologize for the same, but I am not able to understand as to where do I start for this particular assignment. I tried to search google for CRAN and Fast Fourier
2009 Jan 08
2
VaR-Monte carlo Simulation, Historic simulation, Variance-Covariance Simulation
Dear R helpers
Suppose I have a portfolio of securities with exposure to Equity, Bonds and Forex (say $ 1000000 each).
Is there any fucntion in R that will help me calculate Value at Risk (VaR) using Monte carlo Simulation , Historic simulation and Variance - Covariance Simulation.
With regards
Maithili
2008 Dec 18
1
Random Number Generation using (Generalized) Extreme Value distribution and Pareto distribution
Hi R helpers,
Is there any function in R, which generates random numbers in case of
(1) Generalized Extreme Value distribution and
(2) Generalized PAreto distribution for the respective given set of parameters?
Regards
Maithili
2009 Dec 24
3
An unprofessional message
Dear R helpers,
I understand that this is absolutely unprofessional on my part and this group doesn't entertain such things. I have been associted with this group since last 1 and half years and have been immensely benefited by the noble service rendred by many R helpers.
So I take this opportunity to thank all of you and wish you all
"MERRY CHRISTMAS".
I sincerely apologize
2009 Feb 11
1
Generating Correlation matrix
Dear R helpers,
I have generated a portfolio of Equity, Dollar Rate and say zero coupon bond. I have calculated the daily returns based on the prices available for last two years.
Now, I have three seperate csv files (Equity.csv, Dollar.csv and Bond.csv) containing the respective returns. I need to calculate the correlation matrix between the retuns of these assets. Please guide me how this
2009 Oct 07
1
Parameters of Beta distribution
Supose I have a data pertaining to credit loss as
amounts <- c(46839.50,31177.12,35696.69,21192.57,29200.91,42049.64,42422.19, 44976.18, 32135.36,47936.57,27322.91,37359.09,43179.60, 48381.02, 45872.38, 28057.30,44643.83,36156.33,16037.62, 45432.28)
I am trying to fit Beta distribution (two parameters distribution but where lower bound and upper bounds are NOT 0 and 1 respectively). For