y error bars

  • Thread starter Thread starter Peggy
  • Start date Start date
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Peggy

I have graphed some data where each data point is the
average of 5 replicates. I did the statistics in a program
other than Excel. In my Excel graph, under 'Format Data
Series' I have never understood how to add y error bars.
It seems to me the data set that generated the graph
doesn't have enough information to do this. It doesn't
know the value of each of the five replicates, just the
average.
What am I missing?
 
Peggy -
I have graphed some data where each data point is the average of 5
replicates. I did the statistics in a program other than Excel. In my
Excel graph, under 'Format Data Series' I have never understood how to add
y error bars. It seems to me the data set that generated the graph doesn't
have enough information to do this. It doesn't know the value of each of
the five replicates, just the average. What am I missing? <
Click to expand...

A measure of variation?

Like range or standard deviation.

- Mike

www.mikemiddleton.com
 
Thank you. I have printed out the info you suggested and am
in the process of studying it. I might have to get back to
you later.
 
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