ERROR BARS

ERROR BARS

Description:

An error bar is a line through a point on a graph, parallel to one of the axes, which represents the uncertainty of the corresponding coordinate of the point.
Error Bars help to indicate estimated error or uncertainty to give a general sense of how exact a measurement is.

• Error Bars can be applied to graphs such as Scatter Plots, Dot Plots, Bar Charts or Line Graphs.
  
• This is done through the use of markers drawn over the original graph and its data points.
  
• Typically, Error bars are used to display either the standard deviation, standard error, confidence intervals or the minimum and maximum values in a ranged data-set.
• 1st and 2nd column represents X and Y data-set, 3rd column represents error.

Example

A	B	C
X	Y	Error
1.6	1.97	0.897
2.51	3.1	0.732
3.55	2.79	0.633
3.83	3.96	0.6
5.47	4.4	0.633
5.77	5.72	0.732
6.89	7.2	0.897
7.76	7.65	1.128
8.78	8.34	1.425

ERRORBARS(A1:C10)



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