similar to: PVQ Quantization

The attached code implements PVQ encoding/decoding with separated signs [1]. It's in Python to use the unlimited-precision integers. The concept is to map vectors on some L-dimensional pyramid into integers 0...N, just like the standard PVQ. The only change is the mapping itself. The mapping is altered so that all sign data is in the least significant bits. A vector with Z nonzero

Hi, I've been looking at ways to make pyramid plots in R. I like the pyramid.plot method in plotrix as it seems the simplest to use and building them in ggplot looks a bit more code intensive than I'd like, being as I'm new to R. This package does pretty much what I need it to do, however I can't seem to scale the x axis labels. The other labels scale fine with labelcex. I

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dear Celts, I've become intrigued by the problem of spherical quantizers, so I decided to see if I could come up with something better than PVQ. What I wound up writing is something I call an "octagon quantizer. In two dimensions, PVQ uses a "diamond" (square) shape. An octagon code (OVQ) uses an octagon, which is a much better

Dear R Users, Greetings! I am confused with an error message related to "plotrix" library in the newer versions of R. I used to run an R script without fail in the earlier versions (R 2.8.1) of R; but the same script is now throwing up an error message in the newer versions (Now I have R 2.13.0 & R 2.14.0). Herewith I am furnishing the same code for your perusal. It would

I am using pyramid.plot() from the plotrix package. I have something like this ############################################ xy.pop<-dados$masfr xx.pop<-dados$femfr #agelabels<-dados$femlab xycol<-color.gradient(c(0,0,0.5,1),c(0,0,0.5,1),c(1,1,0.5,1),11) xxcol<-color.gradient(c(1,1,0.5,1),c(0.5,0.5,0.5,1),c(0.5,0.5,0.5,1),11) xylab<-dados$maslab xxlab<-dados$femlab

Hi all Another question related to my earlier -- how might I get transparency to work with pyramid.plot in library(plotrix)? I can't figure it out, and the help page says it is there but doesn't give an example. Thanks!

I'm creating a stacked bar chart using the likert command in the HH package. My data are in a data frame, with two numeric variables and a categorical variable, I can't get likert to use the column containing the categorical variable as a my y axis label. Here is a quick example: library(HH) #my data are:

Dear R-users, I am trying to add some text in a textbox to all panels in the following example file. Using the panel-function, I can add a white rectangle with panel.rect but then I have to fit in the text into the box by hand and it will not automatically be centered. Does anyone know how to add the text centered with a white box around it automatically? Is there something like panel.textbox for

Dear list, I am trying to construct a perspective plot of a 2D triangle, or pyramid. I can easily do the one dimensional plot (code below), but I can't figure out how to do it in a perspective plot for two input variables. Does anyone have a simple solution? Thanks! Derek #code for a triangle u <- seq(-1,1,.001) tri <- (1-abs(u)) plot(tri~u,type="l",main="Second

Hi, Last week I finished installing a small network in a private school : one server (an old IBM X225), seventeen desktops (Fujitsu Siemens PIV 2.4 GHZ, 512 MB RAM, 40 GB HD), all running CentOS 5.5. One extra machine is acting as a router, in that it is installed between the DSL modem and the network, with two Ethernet cards, and it's taking care of DHCP, DNS, NTP and also acts like a

Hi I have write A function to draw pyramid of age. I have two function draw.pyramide(h,f,l) , pyramide(h,f,l) and a data frame with data. I first use package.skeleton("pyra") I got the package structure Then in my shell I use > RCMD build pyra I get this : check for description ... OK .... removing junk files but "cannot open

Dear Gentlemen, i want to create a back-to back barplot in R, close to a pyramid chart, but with categories, please help; Here is a sample, Franklin. -------------- next part -------------- A non-text attachment was scrubbed... Name: image.png Type: image/png Size: 8108 bytes Desc: not available URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20170622/75cf841c/attachment.png>

Hi All, I am trying to build in a progress-tracker into my loops that let me have a sense of their progress. I'd like to be able to output to screen a series of periods "...." etc. for each completion of the loop, but I <don't> want to build a pyramid, e.g. . .. ... .... etc. So I need to be able to delete <the last line> of the console entry to accomplish this.

Hi, I hope somebody can help me with this issue: I am doing population pyramids using the barplot command, so in the left side I have male age structure and in the right side the female age structure. To plot the male age structure I put the data in negative numbers. Now, I want to change the sign in the bar plot in such way that I have no-sign numbers, both in left and right side of the graph. I

On 09/12/2016 01:17 PM, Jeff Sadowski via samba wrote: > This thread has me thinking about good ways to use python with web pages. > Maybe php or just flat HTML for the main page and have python work with cgi > to pass information with json's using AJAX > > Any thoughts on this? cgi is probably not what you want to do I doubt you want to make things complex by mixing php and

Hi all, I'm announcing this version of plotrix because I have made a couple of changes that will affect users. Although the function that used to be known as hierobarp is fairly new, there may be some users who are surprised when they find that it has changed its name to barNest. I will probably rename the two functions hierobarp.svymean and hierobarp.svyprop in the next version to

I''m trying to connect to two ISPs the connections are as follows: Eth0 IP: 192.168.1.1 Mask: 255.255.255.0 Eth1 IP: 216.167.217.241 Mask: 255.255.255.0 Eth2 IP: 216.167.208.40 Mask: 255.255.255.0 Here are the commands to set things up: #Load modules insmod /lib/modules/2.6.19.2- pyramid.metrix.net/kernel/net/ipv4/multipath_drr.ko insmod

I''m trying to connect to two ISPs the connections are as follows: Eth0 IP: 192.168.1.1 Mask: 255.255.255.0 Eth1 IP: 216.167.217.241 Mask: 255.255.255.0 Eth2 IP: 216.167.208.40 Mask: 255.255.255.0 Here are the commands to set things up: #Load modules insmod /lib/modules/2.6.19.2- pyramid.metrix.net/kernel/net/ipv4/multipath_drr.ko insmod /lib/modules/2.6.19.2-

I think I reported this bug in the past. At that time, I was told that it is a bug of autoconf. ./configure does not recognize Linux on DEC Alpha 21164PC (a cheap version of Alpha EV56), so all the compilation flags were set incorrectly. I don't know the right way to fix it (I don't know how autoconf works yet ...), but the following patch fixes the problem. Thank you, Naoki Naoki

Hi. I have been talking with Psytel MPEG-4 AAC developer (www.psytel.com) about various compression formats, and to make it short he said that one of the main drawbacks of Vorbis is its vector quantization - it introduces more error then other quantization methods (like non-uniform scalar quantization, if I got it right), probably used in AAC and other similar codecs. I know vector quantization