search for: cvx

Dear All, I have a large data set that looks like this: CVX 20070201 9 30 51 73.25 81400 0 CVX 20070201 9 30 51 73.25 100 0 CVX 20070201 9 30 51 73.25 100 0 CVX 20070201 9 30 51 73.25 300 0 First, I would like to import it by merging column 3 4 and 5, since that is the timestamp. Then, I would like to aggregate the data by splitting them in bins of 5 minut...

Recently, a package for convex optimization was announced for Python, based upon the LP solver GLPK, the SDP solver in DSDP5, and the LP and QP solvers in MOSEK. I'm aware GLPK is available for R, but wondered if anyone had good packages for convex optimization along these lines for R. TIA.

Hi my R buddies, I'm trying to solve a specific group of convex optimization in R. The admissible region is the inside and surface of a multi-dimensional eclipse area and the goal function is the sum of absolution values of the variables. Could any one please tell me whether there's a package in R to do this? Thank you very much, Best wishes, -- ??? Hesen Peng

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...culties figuring out how to do so. My data is 500 rows by 4 columns and basically looks like so: > head(x) V1 V2 V3 V4 1 XOM 0.2317915 0.1610068 1.6941637 2 AAPL 0.6735488 0.7433611 0.1594102 3 GE 1.2554160 0.9237384 1.6767711 4 IBM 1.6296938 0.3730387 0.5858115 5 CVX 0.9194169 0.4785705 0.1803601 6 PG 0.7768241 1.7622060 0.7640163 . . . I would like to produce something similar to what is found at: http://www.statmethods.net/graphs/bar.html # the grouped barplot example or http://had.co.nz/ggplot2/geom_bar.html # the Dodged bar chart...

...data2, by.x="index", by.y="index2", sort=FALSE) I want to preserve the order of data1 by setting sort=FALSE, however the output I get is: ?? index ? tic 1 ?008823 PHM 2 ?008823 PHM 3 ?012689 KBH 4 ?012689 KBH 5 ?012689 KBH 6 ?012689 KBH 7 ?012689 KBH 8 ?004503 XOM 9 ?002991 CVX 10 002845 CTX 11 002845 CTX 12 012395 TOL 13 009302 RYL 14 009302 RYL 15 006669 LEN 16 025340 DHI which has not preserved the order of data1, and also does not have a clear relationship to the order of data2 that I can see. I also tried converting both index fields from chars to ints and got the s...

Hello all: We have installed the latest cvx version of asterisk. We have a FXO card on the server. When some one dial that DID we need to forward the call from asterisk to a sip address, example 2222@sip.sip.com. In that sip address an IVR will handle the call. Also is some one dial any phone number from any asterisk extension the...

[Note to R. Wolff -- thanks for the pointers and the program. As I understand its workings, it would run as root and bind a listen port to a particular program -- with a list being supplied in /etc/portadmin or other file. Basically, a listen wrapper. Hopefully this message will address your cleanup concerns in my previous message. Thanks. Also, you may want to provide a moderator''s

...turn-Path: <wolinski@poczta.onet.pl> Delivered-To: samba@lists.samba.org Received: from ghost3.onet.pl (ghost3.onet.pl [217.97.200.23]) by lists.samba.org (Postfix) with ESMTP id CA8974492 for <samba@lists.samba.org>; Thu, 12 Jul 2001 13:53:54 -0700 (PDT) Received: from pa100.lublin.cvx.ppp.tpnet.pl ([213.76.64.100]:33540 "EHLO poczta.onet.pl") by ghost3.onet.pl with ESMTP id <S1080929AbRGLU4j>; Thu, 12 Jul 2001 22:56:39 +0200 Message-ID: <3B4E0E35.CC55B3D1@poczta.onet.pl> Date: Thu, 12 Jul 2001 22:53:09 +0200 From: Jerzy Wolinski <wolinski@poczta.onet...