Getting straight lines in a best fit trendline of semi log data?

  • Thread starter Thread starter Rob Lineberger
  • Start date Start date
R

Rob Lineberger

Thanks in advance for any light you can shed. I have been asked to
create a graph that looks like this:

http://www.jci.org/cgi/content/full/98/2/490/F4

It is a semi-log representation of a time series. I have created a
spreadsheet here:

http://ccbc.unc.edu/documents/logarithmic_test_graph.xls

As you can see, the trendlines are curved. I have serched the
archives but I'm missing a basic understanding of what to do. For
example, the TREND function just gave me a specific value. If anyone
can tell me how to make my clunky graph resemble the spiify published
one, you will save both my sanity and job credibility. :)
 

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