How to plot error bars in a logarithmic (base 10) plot

Hi all,

I was trying to print horizontal and vertical error bars using logarithmic axis. I didn't managed to do so with the loglog command, and instead with those 2 commands it prints errorbars in a log scale but in natural log. So how can I print the same error bars in a 10 base log? I can't find if I can insert something else in the set command to print it right... Thank in advance!

errorbar(X_data, Y_data, ypos, yneg, xpos, yneg)
set(gca, 'XScale','log', 'YScale','log')

Answer 1

[Sailesh Kalyanapu]

It seems that the input arguments are being passed incorrectly in the ‘errorbars’ plot function.

>> errorbar(x,y,yneg,ypos,xneg,xpos) 

The ‘loglog’ function plots x- and y-coordinates using a base-10 logarithmic scale on the x-axis and the y-axis.

For more information on ‘errorbar’ and ‘loglog’, please refer to the below links to their respective documentations:

Line plot with error bars - MATLAB errorbar (mathworks.com)

Log-log scale plot - MATLAB loglog (mathworks.com)

You can also refer to this MATLAB Answers post for plotting error bars in a logarithmic (base 10) plot :

Error bars in loglog plot - (mathworks.com)