Adding Standard Error To Barplot In R
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Error Bar In R
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R Barplot Error Bars
I have heard expressed about R is that there is no automatic way to plot error bars (whiskers really) on bar plots. I just encountered this issue revising a paper for submission and figured I'd share my code. The following simple function will plot reasonable error bars on a bar plot. PLAIN barplot with error bars matlab TEXT R: error.bar <- function(x, y, upper, lower=upper, length=0.1,...){ if(length(x) != length(y) | length(y) !=length(lower) | length(lower) != length(upper)) stop("vectors must be same length") arrows(x,y+upper, x, y-lower, angle=90, code=3, length=length, ...) } Now let's use it. First, I'll create 5 means drawn from a Gaussian random variable with unit mean and variance. I want to point out another mild annoyance with the way that R handles bar plots, and how to fix it. By default, barplot() suppresses the X-axis. Not sure why. If you want the axis to show up with the same line style as the Y-axis, include the argument axis.lty=1, as below. By creating an object to hold your bar plot, you capture the midpoints of the bars along the abscissa that can later be used to plot the error bars. PLAIN TEXT R: y <- rnorm(500, mean=1) y <- matrix(y,100,5) y.means <- apply(y,2,mean) y.sd <- apply(y,2,sd) barx <- barplot(y.means, nam
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Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping calculate standard error in r each other. Join them; it only takes a minute: Sign up Adding error bars to a bar plot in R using calculated standard errors up vote 2 down vote favorite I created the barplot using two columns from a http://monkeysuncle.stanford.edu/?p=485 text file which also has a third column for standard errors. I used barplot() for this. How do I add error bars using my column, se, from my text file? I tried using error.bar() but that didn't work. r bar-chart share|improve this question edited Sep 1 '13 at 17:39 sgibb 16.1k12749 asked Sep 1 '13 at 17:36 user2714330 45127 2 Welcome on SO! Please read How to make a great R reproducible example?. –sgibb Sep 1 http://stackoverflow.com/questions/18561066/adding-error-bars-to-a-bar-plot-in-r-using-calculated-standard-errors '13 at 17:39 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote accepted You are asking for "dynamite plots": http://emdbolker.wikidot.com/blog:dynamite and http://biostat.mc.vanderbilt.edu/wiki/Main/DynamitePlots share|improve this answer answered Sep 1 '13 at 17:50 42- 165k8145275 Thanks for your help DWin! –user2714330 Sep 1 '13 at 18:28 Thanks for the checkmark, but this answer is arguably a link-only answer and probably should have been deleted. –42- Nov 14 '14 at 19:31 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Email Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service. Not the answer you're looking for? Browse other questions tagged r bar-chart or ask your own question. asked 3 years ago viewed 3008 times active 3 years ago Linked 1522 How to make a great R reproducible example? Related 0R bar plot with hour breaks from datetime0Separate Condition based coloring of different columns in bar-plot in R1How do I add error bars in this bar plot?1how to make barplot bars same size in plot window in R using barplot function1R plot with counting2Creating barplot with standard errors plotted in R2Add error bars to a barplot1R chang
to create a barplot with SEM error bars Aubrie Holman SubscribeSubscribedUnsubscribe Loading... Loading... Working... Add to Want to watch this again later? Sign in to add this video to a playlist. Sign in Share https://www.youtube.com/watch?v=4Y3ZjFRwMX0 More Report Need to report the video? Sign in to report inappropriate https://stat.ethz.ch/pipermail/r-help/2007-July/137189.html content. Sign in Transcript Statistics 2,193 views 5 Like this video? Sign in to make your opinion count. Sign in 6 1 Don't like this video? Sign in to make your opinion count. Sign in 2 Loading... Loading... Transcript The interactive transcript could not be loaded. Loading... Loading... Rating is error bar available when the video has been rented. This feature is not available right now. Please try again later. Published on Oct 30, 2015 Category Education License Standard YouTube License Loading... Autoplay When autoplay is enabled, a suggested video will automatically play next. Up next Learn R - Bar Charts with Error Bars in Ggplot2 - Duration: 27:28. Erin Buchanan 3,162 views 27:28 R barplot with error Statistics tutorial: Creating bar charts for categorical variables | lynda.com - Duration: 9:06. Lynda.com 1,906 views 9:06 Learn R - Line Graphs with Error Bars in Ggplot2 - Duration: 34:05. Erin Buchanan 1,386 views 34:05 Creating a Basic Bar Plot in R (Data Science & Statistics) - Duration: 24:34. Tim Layton 965 views 24:34 Plotting in R tutorial: Gorgeous graphs with ggplot2 - Duration: 32:05. deltaDNA 24,170 views 32:05 Creating Barplots in RStudio - Duration: 4:38. UTSSC 10,610 views 4:38 R Tutorial - Customizing Your Plots In R - Duration: 4:30. DataCamp 984 views 4:30 Excel Graphs With Error Bars Tutorial By Nestor Matthews - Duration: 14:12. Nestor Matthews 12,819 views 14:12 R tutorial: Creating bar charts for categorical variables | lynda.com - Duration: 13:21. Lynda.com 9,849 views 13:21 Constructing and plotting confidence intervals for means in R - Duration: 8:32. iquit-vids 4,935 views 8:32 Graphs and Error bars with Numbers - Duration: 7:07. Amanda M. Noller 9,346 views 7:07 Types of error-bars for mean: SD SE CI - Duration: 9:29. Ayumi Shintani 2,208 views 9:29 Standard Deviation using R Programming - Statistics Tutorial - Durati
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