similar to: exponent function help??

Displaying 20 results from an estimated 20000 matches similar to: "exponent function help??"

2012 May 07
1
Value of Hurst exponent (R/S) method > 1
Hello, I'm using fArma package to estimate the value of Hurst exponent using R/S method. However, for a certain set of data I get H ~ 1.8. How do I interpret this? Following are the output that I get for this set: > mean(data[,2]) [1] 400.5433 > sd(data[,2]) [1] 1139.786 > > rsFit(data[,2], levels = 64) Title: Hurst Exponent from R/S Method Call: rsFit(x = data[, 2], levels
2012 Jun 22
2
Boxplot with Log10 and base-exponent axis
Dear all, I would like to (i) produce boxplot graphs with axis in logarithm in base 10 and (ii) showing the values on the axis in 10^exponent format rather than 10E+exponent. To illustrate with an example, I have some widely spread data that I chart plot using boxplot() [figure on the left]; the log="y" option of boxplot() I obtained the natural logarithm conversion of the data and
2010 Jul 19
1
Hurst Exponent Estimation
Dear All, I am a novice when it comes to time-series analysis and at the moment I am actually interested in calculating the Hurst exponent of a time series. This question has already been asked quite some time ago http://bit.ly/98dZsi and I trust some progress has been made ever since. I was able to find some functions in the packages http://cran.r-project.org/web/packages/Rwave/index.html
2010 Nov 08
1
Exponent of sqr symmetric matrix
Dear R experts, I really have difficulty when I try to deal with this question. suppose X is a square symmetric matrix. The exponent of X is defined by the matrix limit as following: exp(X) = lim (I + X/n)^n, note: the limit is from n to infinite. How can I write R function for the above? Thank you very much -- View this message in context:
2004 Mar 05
3
Lyapunov exponent code for time series
Dear all, Has anyone worked on coding for calculating Lyapunov Exponent for a time series data? or any package is available for computing Lyapunov? Please advice and many thanks in advance. Catherine X Wang
2004 Apr 22
1
Lyapunov exponent?
Hello, Does anybody know if there is somewhere in R a function to calculate the Lyapunov exponent in a time series? Thanks, Philippe Grosjean .......................................................<??}))><.... ) ) ) ) ) ( ( ( ( ( Prof. Philippe Grosjean \ ___ ) \/ECO\ ( Numerical Ecology of Aquatic Systems /\___/ ) Mons-Hainaut University, Pentagone / ___ /( 8, Av. du
2001 Feb 27
2
rsa_public_encrypt() exponent too small or not odd
I am attempting to deploy OpenSSH. The trouble is I keep getting the rsa_public_encrypt() exponent too small or not odd with the SSH 1 or 1.5 protocols. I can't get OpenSSH to communicate with itself with any protocal other than SSH 2. Platform notes: HP-UX 11.00 Dart 51 64bit OpenSSL 0.9.6 Zlib 1.1.3 Cflags: -Ae I have tried with and without optimizations. I noticed that this problem
2003 Dec 04
1
R code for estimating Hurst exponent
Has anyone writen R code for estimating Hurst exponent with R/S method or other methods? or any other source of R code available? Many thanks Catherine Wang
2012 Apr 25
1
Help on time series & Hurst exponent
Hello, I'm an absolute beginner with R. I'm hoping to do some time-series analysis on my data. The data looks like #time value 18 153 20 426 70 7 83 130 84 7 and so on where time could be in seconds or hours or days (not all at the same time). How could I import such a file to R and do some simple stuff (say plot the values)? As per the tutorials on time series, I could use the ts()
2010 Sep 07
4
a^c(1:3)
Dear R, I have two small questions confused me recently. Now assume I have a matrix "a", like this, > a <- matrix(1:6, 2, 3) > a [,1] [,2] [,3] [1,] 1 3 5 [2,] 2 4 6 I sometimes need each row of "a" raised to a different exponent. So I do a trick like this, > a^c(2, 3) [,1] [,2] [,3] [1,] 1 9 25 [2,] 8 64 216 My first
2003 Jun 20
1
Power Law Exponents
I am having difficulty with the calculation of the power law exponent for set of nodes within a graph. Specifically, I am interested in the distribution of in-degree and out-degree among communities of web pages where the web pages are the nodes of the graph and the hyperlinks the edges. According to the literature, the distribution of incoming and outgoing links obeys a power law distribution
2017 Nov 24
1
SSL configuration
Hello subscribers, I have a very strange question regarding SSL setup on gluster storage. I have create a common CA and sign certificate for my gluster nodes, placed host certificate, key and common CA certificate into /etc/ssl/, create a file called secure-access into /var/lib/glusterd/ Then, I start glusterd on all nodes, system work fine, I see with peer status all of my nodes. No problem.
2008 Aug 04
2
Long Range Dependence: Hurst exponent estimation
Dear R Users, Can anyone point me to a package for R vrsion 2.7.1 which implements some Hurst exponent estimation methods ? Thanks in advance, Tolga Generally, this communication is for informational purposes only and it is not intended as an offer or solicitation for the purchase or sale of any financial instrument or as an official confirmation of any transaction. In the event you are
2012 May 17
2
solve the equation in R
Hi all, I need to solve this following equation which the unknown value (here is "a") is on the exponent place, could anybody please help me to figure it out? I tried to use lm.sol() or solve() function but it doesn't work...... Thanks for help, Peiling (x, y) = (2.21, 1.01) y = 1 + x - ( 1 + (x)^a)^(1/a)
2012 May 06
0
Steps to determine Hurst exponent
Hello, I'm using the fArma package to estimate Hurst exponent by R/S method. I've some measurements in the following format: Call_number Call_duration I'm using the following steps. Am new to R, so it would help if someone could please confirm if my steps are correct. Further, this method seems to give a value H ~= 0.8 (> 0.5). Is the use of R/S method to estimate H OK? >
2011 Jul 23
2
An infinite recursion error please explain!
Probability <- function(N, f, w, b, y, t, q) { #N is the number of lymph nodes #f is the fraction of Dendritic cells (in the correct node) that have the antigen #w is time in terms of hours #b is the starting position (somewhere in the node or somewhere in the gap between nodes. It is a number between 1 and (x+t)) #y is the number of time steps it takes to traverse the gap (8hr/y) #t is
2007 Mar 26
0
The Hurst Exponent in fBasic
Dear R users, The function lmacfPlot( ) in fBasics, returns a list including the Hurst Exponent. I get sometimes a value for Hurst Exponent using lmacfPlot bigger than 1 which is theoretically incorrect. What could be reason ? From the related documents, I could not find how the Hurst Exponent in lmacfPlot is estimated. Could you please say how it is estimated here? Thank you so
2001 Mar 01
0
FW: rsa_public_encrypt() exponent too small or not odd
I have the following bug report to submit. OpenSSH 2.5.1p1 and 2.5.1p2 HP-UX 11.00 Dart 51 64bit (32bit compile) OpenSSL 0.9.6 Zlib 1.1.3 Cflags: -Ae I keep getting "rsa_public_encrypt() exponent too small or not odd" with the SSH 1 or 1.5 protocols. I can't get OpenSSH to communicate with itself with any protocal other than SSH 2. I have searched everywhere. Google, OpenBSD,
2014 Mar 18
1
Developing the UPS side of the UPS-NUT equation (via usbhid)
Things are going along well, but there is one remaining area of confusion...."units". I understand exponents now...it's basically how you pass decimal values. That's easy enough. But "units"....in other words, I have a voltage I want to put in a report. If I include in the report descriptor the fact that it is actually a voltage, with units of "volts",
2013 Feb 04
2
Contract Syntactic Sugar
## the following is a dream: add some sugar syntax to allow for contracts with teeth (in and out checking) > is.positive <- function(x) (all(x>0)) > exponentiate <- function( x ::is.data.frame , exponent ::is.numeric is.positive) :: is.vector is.numeric { x$base :: is.positive ## error also if base does not exist in x; may need some special IQ x$base^exponent }