Error Bars Log Matlab
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Matlab Error Bars Scatter Plot
Cody Blogs Newsreader Link Exchange ThingSpeak Anniversary Home Post A New Message Advanced Search Help Trial software error bars matlab error bars without line in log-log scale Subject: error bars in log-log scale From: Marco Date: 12 Sep, 2002 08:55:41 Message: 1 of 6 Reply to this message Add author to My Watch List View matlab error bars semilog original format Flag as spam Anybody knows how can I plot error bars in a semi- or bi-logarythmic scale? The command errorbar does not help... thanx Marco Subject: error bars in log-log scale From: nospam@thank.you (De... Date: 12 Sep, 2002 13:20:21 Message: 2 of 6 Reply to this message Add author to My Watch List View original format Flag as spam On Thu, 12
Matlab Error Bars On Bar Graph
Sep 2002 08:55:41 -0400, Marco
toolboxes, and other File Exchange content using Add-On Explorer in MATLAB. » Watch video Highlights from ploterr ploterr.m View all files Join the 15-year community celebration. Play games and win prizes! » Learn more matlab error bars different length 5.0 5.0 | 17 ratings Rate this file 43 Downloads (last 30 days) matlab error bars on barplot File Size: 5.86 KB File ID: #22216 Version: 1.3 ploterr by Felix Zoergiebel Felix Zoergiebel (view profile) 4 files 54
Matlab Error Bars Curve Fitting
downloads 4.5 23 Nov 2008 (Updated 14 Feb 2009) plots data with x and/or y error bars and supports logarithmic scaling for both axes. | Watch this File File Information Description ploterr https://www.mathworks.com/matlabcentral/newsreader/view_thread/39537 is a universal tool for plotting data with error bars. The following features are supported: - linear/logarithmic scaling - x and/or y error bars - relative/absolute errors - width of bar handles adjustable Basically it unifies the features of errorbarxy, errorbarloglog, errorbar_x and errorbar in one single program. For a detailed description and examples see the documentation in the file. The technique for plotting the error https://www.mathworks.com/matlabcentral/fileexchange/22216-ploterr bars is adapted from MATLAB's v6 errorbar, which is also used by Goetz Huesken's errorbar_x. With this technique the x error bars as well as the y error bars are one big line object, in contrast to errorbarloglog where each single error bar consists of three separate lines. That prevents an overflow of the legend with lots of separate line objects and makes it a lot easier to change the line style of the error bars. Acknowledgements Errorbar X inspired this file. This file inspired Errbar, Errorbarxy, and Superbar. MATLAB release MATLAB 7.4 (R2007a) Tags for This File Please login to tag files. data explorationerror barerrorbarerrorbar horizontalerrorbar logarithmicerrorbar_xerrorbarloglogherrorbarhorizontal errorbarlogarithmic errobarplotplot data Cancel Please login to add a comment or rating. Comments and Ratings (30) 10 Sep 2016 Mohammad Heriyanto Mohammad Heriyanto (view profile) 0 files 0 downloads 0.0 11 Nov 2015 William Barnes William Barnes (view profile) 0 files 0 downloads 0.0 Very useful but.... Is it possible to use a log10 rather than log (i.e. to use log base 10 rather than log base e) for the axes. For example, I tried log10x instead of log, but no joy. Comment only 25
toolboxes, and other File Exchange content using Add-On Explorer in MATLAB. » Watch video Highlights from errorbarlogx.m errorbarlogx(epsilon)ERRORBARLOGX Homogenize the error bars https://www.mathworks.com/matlabcentral/fileexchange/9715-errorbarlogx-m for X-axis in log scale. View all files Join the 15-year http://stackoverflow.com/questions/4393868/plotting-errorbars-in-the-logarithmic-domain-with-negative-values-matlab community celebration. Play games and win prizes! » Learn more 4.95238 5.0 | 21 ratings Rate this file 17 Downloads (last 30 days) File Size: 2.04 KB File ID: #9715 Version: 1.0 errorbarlogx.m by Frederic Moisy Frederic Moisy (view profile) 14 files 323 error bars downloads 4.25151 21 Jan 2006 (Updated 24 Jan 2006) Error bar plot for X-axis in log scale | Watch this File File Information Description ERRORBARLOGX Homogenize the error bars for X-axis in log scale. ERRORBARLOGX turns the X-axis of the current error bar plot to log scale, and homogonizes the length of the matlab error bars horizontal segements which terminate the vertical error bars. By default, Matlab's ERRORBAR draws vertical error bars which are terminated by small horizontal segments of uniform length for the X-axis in linear scale. But when turning the X-axis to log scale, these segments become uneven. Using ERRORBARLOGX makes them uniform again. ERRORBARLOGX(N) specifies the relative length of the horizontal segments, normalized with the total range of the data. By default, N=0.01 is used. Limitations: ERRORBARLOGX acts only on the last drawn curve. If this curve is not an error bar plot, it won't work. Example: x=logspace(1,3,20); y=5*(1 + 0.5*(rand(1,20)-0.5)).*x.^(-2); errorbar(x,y,y/2,'o-'); errorbarlogx(0.03); Acknowledgements This file inspired Eb Ticklength, Errorbarlogy, and Superbar. MATLAB release MATLAB 7.0.1 (R14SP1) Tags for This File Please login to tag files. error bar plotgraph typesgraphicslog scaleplottingspecializedxaxis Cancel Please login to add a comment or rating. Comments and Ratings (24) 03 Dec 2015 Mario Koddenbrock Mario Koddenbrock (view profile) 0 files 0 downloads 0.
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Plotting errorbars in the logarithmic domain with negative values (Matlab) up vote 3 down vote favorite 1 I have a vector, call it x, which contains very small numbers that I calculated from a mean. I'd like to plot the logarithmic transform of x, say y=10*log10(x), along with errorbars equal to +- 2 standard deviations calculated when finding the mean. To do this, I'm using the following code: figure errorbar(lengths, 10*log10(x), ... 10*log10(x-2*std_x), 10*log10(x+2*std_x), 'o') My problem is that since x contains such small values, x-2*std_x is usually a negative number, and you can't take the log of negative numbers. So I suppose my question is how can I plot errorbars in the logarithmic domain when subtracting the standard deviation in the linear domain gives me negative numbers? I can't do the +- matlab plot logarithm share|improve this question edited May 4 '12 at 23:42 CharlesB 42.2k11117136 asked Dec 9 '10 at 0:49 Josiah 3891822 this also means that the error bar meaning isn't quite right - the error bars assume a gaussian distribution, and nonnegativity means that it's not gaussian. but I still understand why you would do this, and it's still reasonable :) –Peter Dec 9 '10 at 1:05 add a comment| 3 Answers 3 active oldest votes up vote 1 down vote accepted You can replace those values with a small value but log-able (say, 40 dB lower): minb = x-2*std_x; mask = (minb <= 0); minb(mask) = x/1e4; ... use 10*log10(minb) instead Or ju