search for: notch

PR #7690 points out that if the confidence intervals (+/-1.58 IQR/sqrt(n)) in a boxplot with notch=TRUE are larger than the hinges -- which is most likely to happen for small n and asymmetric distributions -- the resulting 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 ca...

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.

...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 a...

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 Chr...

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 <- read.tab...

...ome 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, 1, 7603.63, 1, 33155.24, 1, 1, 50, 3361.78, 1, 37781.84, 1, 1, 1, 46492.05, 22334.88, 1, 1) summary(x) boxplot(x,notch=TRUE,log="y") #unexpected boxplot(x) #ok boxplot(x,log="y") #ok boxplot(x,notch=TRUE) #aha I can get around this, but thought that maybe boxplot() should be adjusted to deal with something like this on its own. Thank you, b. platform i386-pc-mingw32 arch i...

...:10.28.32.254:255.255.252.0 TFTP prefix: /tftpboot/ Trying to load: pxelinux.cfg/0A1C229 [etc, etc, eventually it loads the default file which points it at boot.msg, vmlinuz, initrd] please tell me I overlooked something silly in the documentation or am doing something else foolish :) G. -- greg notch notch at av.com http://www.altavista.com - smart is beautiful BF7C EC14 D458 D6EA D8DD A30F 1A24 1A3F DBCF BAD3

...<- 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} tell...

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-d...

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=&quo...

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 f...

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...

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.

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 :

...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, boxwex=boxwex, > notch = notch, bxp() 1c1,2 < function (z, notch = FALSE, width = NULL, varwidth = FALSE, notch.frac = 0.5, --- > function (z, notch = FALSE, width = NULL, varwidth = FALSE, > boxwex=...

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...

...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. Steve On 03/03/2010 07:39 PM, Jean-Marc Valin wrote: > 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 > peopl...

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 codec), >you're not really supposed to have anything below ~200 Hz, but a lot of >peopl...

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....