search for: notches

Displaying 20 results from an estimated 276 matches for "notches".

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2006 Jan 23
1
too-large notches in boxplot (PR #7690)
...lting plot is ugly, e.g.: set.seed(1001) npts <- 5 X <- rnorm(2*npts,rep(3:4,each=npts),sd=1) f <- factor(rep(1:2,each=npts)) boxplot(X~f) boxplot(X~f,notch=TRUE) I can imagine debate about what should be done in this case -- you could just say "don't do that", since the notches are based on an asymptotic argument ... the diff below just truncates the notches to the hinges, but produces a warning saying that the notches have been truncated. ?? what should the behavior be ?? the diff is against the 11 Jan version of R 2.3.0 *** newboxplot.R 2006-01-23 14:3...
2008 Oct 08
1
Strange horns on notched box plots
Hi I'm getting a weird result when I try to switch from a normal box plot to a notched one. The ends of the box fold down toward the median giving a horned appearance. Is just the sample itself? It is small, but the un-notched plot looks okay. Anyway to fix this? e7=as.vector(c(234,37,98,116,47)) boxplot(e7, plot=TRUE, notch=TRUE) Thanks very much.
2006 Oct 09
1
boxplot, notches, etc.
...in r-help (originally posted October 5: my experience says that if it hasn't been answered by then it won't be). I wouldn't bother, but I'm worried that r-devel might be better, *and* a previous e-mail of mine on the subject in January also seemed to get buried. Synopsis: boxplot notches look weird when notches are greater than hinges ((1.58*IQR/sqrt(n)) > approx IQR). When log="y" this causes an error. Below are several reproducible examples, some discussion, and a patch against calc.R. Please feel free to say "this is just cosmetic/isn't an issue, go awa...
2004 Mar 01
3
boxplot notches
Dear list members, Can anyone tell me how the notches in boxplot(Y~X,notch=T) are calculated? What do these notches represent exactly? I?d suppose they are Conficence Intervals for the median, but I?ve also been told they might show Least Significant Difference (LSD) equivalents. I would very much appreciate any help from you. Best regards Chris...
2018 Mar 21
1
Plotting Notched Box Plots Log Scale - Losing bottom portion of box plot
Hello, I'm using the code below to generate some notched box plots. The issue is whenever I use log scale, the sides of the bottom part of the box plots don't plot. I've tried it in RStudio Ver 1.1.419 and R version 3.4.3 and I get the same result. The code and link to my data is below. Thank you for your time David MyData <-
2006 Oct 05
1
unexpected behavior of boxplot(x, notch=TRUE, log="y")
A function I've been using for a while returned a surprising [to me, given the data] error recently: Error in plot.window(xlim, ylim, log, asp, ...) : Logarithmic axis must have positive limits After some digging I realized what was going on: x <- c(10460.97, 10808.67, 29499.98, 1, 35818.62, 48535.59, 1, 1, 42512.1, 1627.39, 1, 7571.06, 21479.69, 25, 1, 16143.85, 12736.96,
2006 Mar 25
0
Notch Novelty Breaks Sales Records at VNU Expo's ASD Show in Las Vegas
2002 Feb 04
6
pxelinux hang: problem freeing memory?
trying to set up a IBM 4500R with pxelinux 1.67 with an Intel eepro(ish) NIC. Got DHCP (ISC 2.0) and atftpd working. pxelinux downloads the boot.msg, kernel and initrd, but when it tries to load the kernel we get: boot: Loading 7.1/vmlinuz............. Loading 7.1/initrd.img.............. ready. Failed to free base memory, sorry... [system hangs] I tried enabling debugging in pxelinux.asm, but
2006 Feb 26
2
How to produce notches in bwplot?
...<- 1:20), f <- rep(c('hi','lo'), times = 10)) with(tst, bwplot(f ~ x, panel = function(x, y){panel.bwplot(x, y, pch = '|', stats = boxplot.stats, fill = 8, varwidth = T)})) I can't figure out from the documentation how to tell stats that I would like to see notches or (even bands). Here is what I've done. (By the way, there is something about the style of R documentation that has --- more than once --- led me to these kinds of problems.) RSiteSearch('bwplot notch') gives me nothing (as well as other similar queries). xyplot {lattice} tells...
2010 Mar 03
3
Notch Filter in AEC
Hi, The notch filter in AEC is only used to remove DC signal, and the time of convergence is not important, right? If so, I think preset value of notch_radius is too small, and it causes noticeable distortion(freq < 200hz cut). There is a picture in attachment to show signals under different radius in time-domain. By setting notch_radius to 0.999 for all sampling rates, I found better
2009 Sep 29
2
ggplot2 box plot notches
Dear List, I just googled to find out if notched box plots are possible with ggplot2, but couldn't find a answer to it. boxplot() has the option: notch = TRUE, e.g.: boxplot(mpg$hwy, notch=TRUE) My example code (taken from the net) is: require(ggplot2) qplot(class, hwy, fill=factor(year), data=mpg, geom="boxplot", position="dodge")+theme_bw() Thank you for you help!
2010 Feb 18
2
Error message when using error.bars(x,add=TRUE)
Hey hey, I`m analyzing a data set containing the element contentrations of various samples... I wanted to construct notched boxplots and got quite ugly results for some of the boxplots. The notches are often larger then the hinges which resulted in weird looking edges (even though I`m using a log-boxplot). To avoid this problem I thought about using "normal" log-boxplots and adding some kind of parantheses for showing the confidence interval. I found an option to do this with the he...
2011 May 25
0
Adding Mean to Notched Box Plots
Hello everyone, I'm new to R and made my 1st notched box plots this weekend. I've read some of the other post regarding adding means to box plots but I'm still having problems. I've looked at some of the other discussions and R News Volume 3/2, October 2003 which had info also but all these seem to address "groups" of data. I have some rainfall pH data from
2008 Apr 21
3
Choice of notch size in R
Is there a way to modify the choice of notch size [1] in R's boxplot routine from outlining a 5% significance region, to say 1% or lower? Thanks, Alex [1] McGill, Tukey, and Larsen. "Variations of Box Plots", The American Statistician, Vol. 32, No. 1, 12-16.
2010 Feb 16
3
error : unused argument(s) when boxplot
Dear all, I am a total beginner in R, so sorry if this is the wrong place. I am using R 2.10.1 on a Mac (Mac OS 10.6.2). I have this small dataset : growth sugar 75 C 72 C 73 C 61 F 67 F 64 F 62 S 63 S I have no problem reading the table, or getting the summary, but if I try boxplot(growth~sugar, ylab="growth", xlab="sugar", data=Dataset), I have the following error :
2000 May 18
0
Control of box and staple width in boxplot()
I''d like to make the following changes (differences are from R1.0.1): boxplot.default() 1c1 < function (x, ..., range = 1.5, width = NULL, varwidth = FALSE, --- > function (x, ..., range = 1.5, width = NULL, varwidth = FALSE, boxwex=0.8, 37c37,38 < bxp(groups, width, varwidth = varwidth, notch = notch, --- > bxp(groups, width, varwidth = varwidth,
2004 Sep 16
2
date library and notched boxplots
I'm having problems using the date library with notched boxplots. I have separate month, day, and year columns and would like to plot the columns as a date against other variables. I have used the mdy.date(month,day,year) command before with plot(), but it doesn't seem to work with boxplot(). Instead of the dates along the x-axis, I get a list of numbers. Maybe I have the code wrong?
2010 Mar 03
2
Notch Filter in AEC
Hi Jean-Marc, You make that sound like its just a matter of meeting some arbitrary spec. Let's be more specific..... If you use narrow band voice down to deep bass frequencies: - 16 bit linear audio sounds good - alaw or ulaw sounds muddy - low bit rate codecs, like speex or G.729, sound awful. I assume QinBin only listened to some uncompressed audio in his evaluation.
2010 Mar 03
2
Notch Filter in AEC
Hi, But in fact, it really affects the voice quality. One of my tester says, "Is your mouth far way from the mic?" Could you explain why we should cut 200hz below? >The notch filter is specifically designed to cut below 200 Hz when >working in narrowband. In wideband, the cutoff is more around 50 Hz. The >reason is that in narrowband operation (irrespective of the
2010 Mar 03
0
Notch Filter in AEC
The notch filter is specifically designed to cut below 200 Hz when working in narrowband. In wideband, the cutoff is more around 50 Hz. The reason is that in narrowband operation (irrespective of the codec), you're not really supposed to have anything below ~200 Hz, but a lot of people forget that. Jean-Marc On 2010-03-03 02:40, brant wrote: > Hi, > > The notch filter in