search for: diamonds

Good day, Sometimes, sparse.model.matrix outputs a dgCMatrix which has column names consisting of factor levels that were not in the original dataset. The first factor appears to be correctly transformed, but the following factors don't. For example: diamonds <- as.data.frame(ggplot2::diamonds) > colnames(sparse.model.matrix(~ . -1, diamonds)) [1] "carat" "cutFair" "cutGood" "cutVery Good" "cutPremium" "cutIdeal" "color.L" "color.Q" &q...

Like this? # example using qplot library(ggplot2) meanprice <- tapply(diamonds$price, diamonds$cut, mean);meanprice cut <- factor(levels(diamonds$cut), levels = levels(diamonds$cut)) qplot(cut, meanprice, geom="bar", stat="identity", fill = I("grey50")) dev.new() # create a new graph to compare with qplot # Example using ggplot ggdata <- d...

Some time ago I was allowed to discuss "Diamond Graphs", and whether they would be useful in R, in this mailing list. The August 2003 issue of The American Statistician has finally arrived here and I have been able to read the article. A number of points of interest arise. 1. The article is "A Diamond-Shaped Equiponderant Graphical Display of the Effects of Two

...graphs this way: (1) Write a 2D table. - very old idea (2) Instead of numbers, put blobs of some kind where the size shows you the importance. - at least 3000 years old. (3) Rotate the table widdershins 45 degrees - swiped from 3D displays (4) Replace the blobs by truncated diamonds; height of bar or area of polygon or something shows value. - NOVELTY (5) Notice that it's not all that readable, so put the numbers back. The fact that someone would try to patent this strikes me as outrageous; the actual amount of novelty is so tiny. For R, I don'...

I can plot to png's fine when i run this directly from the top-level script/console: png('diamonds.png');qplot(carat,price,data=diamonds);dev.off() But for some reason it's not working when that's in a function: (function(){png('diamonds.png');qplot(carat,price,data=diamonds);dev.off()})() I suspect this is because the qplot's return value must be "returned"...

Hi R-help I'm trying to create a grid plot in which each plot in the grid contains two density plots (colored by factor) and two vertical lines at the respective medians (also colored by the factor). Using the diamonds dataset as an example, the following commands give me price density plots by factor cut in a single, ungridded plot. p <- ggplot(data=diamonds, aes(x=price)) + geom_density(aes(color=cut)) p I can add vertical lines at the medians of each density as follows. medians <- data.frame(cut=leve...

Hi Ian, Per your suggestion, I reinstalled R 2.9.0, then I reinstalled ggplot2 on top. The problem persists. Here's the what happens after the installation: > qplot (carat, price, data = diamonds, alpha = I(1/10)) Warning message: In grid.Call.graphics("L_points", x$x, x$y, x$pch, x$size) : semi-transparency is not supported on this device: reported only once per page The entire record of installing ggplot2 package, ending up with the line above is in the attached file....

Dear R developers, I have a new class, which I called "Molecule", and have tried to define = a "+" operation for 2 objects of this class. This is what I have written so far, although the method is not complete = (I'm trying to look at it at intermediate stages): setMethod( f=3D"+", signature(x=3D"Molecule",y=3D"Molecule"),

...o Strbenac wrote: > Good day, > > Sometimes, sparse.model.matrix outputs a dgCMatrix which has column names consisting of factor levels that were not in the original dataset. The first factor appears to be correctly transformed, but the following factors don't. For example: > > diamonds <- as.data.frame(ggplot2::diamonds) >> colnames(sparse.model.matrix(~ . -1, diamonds)) > [1] "carat" "cutFair" "cutGood" "cutVery Good" "cutPremium" "cutIdeal" "color.L" "color.Q&quot...

Hi: I am experiencing a problem with dataset diamonds in ggplot2. When trying execute the summary(diamonds) statement, the following error message is displayed: Error in summary(diamonds) : Cannot open file 'C:/Users/James/R_Pgms/R/R-2.8.1/library/ggplot2/data/Rdata.rdb': No such file or directory Can you please advise me? A complete hist...

Hi, I haven't found in R a possibility to draw a boxplot with a diamond shape (means and CI). Does anyone know how to plot it ? thanks,

Hi, Here are three plots: library(ggplot2) data(diamonds) randind <- sample(nrow(diamonds),1000,replace=FALSE) dsmall <- diamonds[randind,] qplot(carat, data=dsmall, geom="histogram",binwidth=1) qplot(carat, data=dsmall, geom="histogram",binwidth=.1) qplot(carat, data=dsmall, geom="histogram",binwidth=.01) What are w...

...\begin{document} \maketitle \section*{Examples of using ggplot2} The goal is to be able to import ggplot2 graphics into the annual report. Hadley Wickham has done a great job by creating this free R package. Let's get some data into R from one the built-in packages: We'll work with the diamonds data. This dataset is really large, it accounts for over 50.000 records. We will demostrate how to create nice and colorful graphics as well as creating some nice tabular tables with horizontal and vertical lines. <<dataAnalysis.R,echo=F>>= data(diamonds) attach(diamonds) dsmall &lt...

Hi, Does anyone know how to do a coord_trans() in which the y-axis is tranformed into (for example) -1000/y? Thanks, _____________________________ Professor Michael Kubovy University of Virginia Department of Psychology USPS: P.O.Box 400400 Charlottesville, VA 22904-4400 Parcels: Room 102 Gilmer Hall McCormick Road Charlottesville, VA 22903 Office: B011

Dear R community, I would be greatful if somebody could shed light on the following. I have created a set of 6 points to check how centroid agglomeration works in cluster analysis: > Y <- data.frame(x=c(-1,1,1,-1,10,12),y=c(1,1,-1,-1,0,0)) It is quite intuitive to understand that the last clusters to be joined will be {1,2,3,4} with {5,6}. Now, the centroid for the first cluster has

Dear R gurus and users, I seem to have problem finding the right tool for plotting convex hulls over 2D plots, after a cluster analysis. In fact I would like to draw a convex hull in 2D for a generic group of points. I found a "convhulln", but this doesn't seem to give me a convex hull. Here is what I do: > library(mvtnorm) > Mean <- c(2,1) > Sigma <-

Hi all, Is it possible to change the filling of the squares used to represent the colour legend in a bar plot with ggplot? in this example, fillings are raven black, I'd like them white. ggplot(diamonds, aes(clarity, colour = cut)) + geom_bar() Regards -- ------------- Benoit Boulinguiez Ph.D student Ecole de Chimie de Rennes (ENSCR) Bureau 1.20 Equipe CIP UMR CNRS 6226 "Sciences Chimiques de Rennes" Avenue du G?n?ral Leclerc CS 50837 35708 Rennes CEDEX 7 Tel 33 (0)2 23 23 80 83 Fax 3...

Dear R-list I'm working with with geom_errorbar; specifically I'm trying to reproduce the example Hadley Wickham have on http://had.co.nz/ggplot2/geom_errorbar.html (all in the button of the page) where he makes an nice plot with errorbars and then draw lines between the points. What confuses me is the 'limits' he defines for the errorbars from the se variable. First he creates

Suppose that I'm working on Hadley's diamond dataset and I want to review the relationship between price, colour and carat. I might run the following: library(ggplot2) #plot scatter and add some hex binning q<-qplot(carat,price,data=diamonds, geom=c("hex"), main="Variability of Diamond Prices by Carat and Colour") #facet to get one scatter for each colour, plus overlay a black coloured loess smoothed line showing the trends in the data q + facet_wrap(~color,ncol=2)+geom_smooth(aes(group=1),colour=...

Message: 6 Date: Tue, 6 Aug 2013 10:46:19 -0400 From: Chad Rosier <chad.rosier at gmail.com<mailto:chad.rosier at gmail.com>> To: llvmdev <llvmdev at cs.uiuc.edu<mailto:llvmdev at cs.uiuc.edu>> Subject: [LLVMdev] Potential SimplifyCFG optimization; hammock to diamond transformation Message-ID: <CAMo3wbR6x1wBzb17=GrkERV7kvzx2RdpuheFzyxkQEs3BBvKaw at