2
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My table looks like this:

    Tissue  Dry Amount   Analyte            Area
1   Liver   A   a   3-Phosphoglyceric Acid  66351918.4
2   Liver   B   a   3-Phosphoglyceric Acid  119013081.6
3   Liver   A   b   3-Phosphoglyceric Acid  195732464.0
4   Liver   B   b   3-Phosphoglyceric Acid  247443210.8
5   Liver   A   c   3-Phosphoglyceric Acid  456447252.7
6   Liver   B   c   3-Phosphoglyceric Acid  494555301.1

I would like to get the mean of the two values for the same Tissue Amount and Analyte by ignoring the DRY variable.

I always end up having one value of the two and not the mean.

Summary <- shape.data %>%
+   group_by(Amount,Tissue,Analyte ) %>%
+   summarise(Area_mean = mean(Area))

How can I do this calculation?

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  • $\begingroup$ Can you share the result of what you tried ? And explain what is wrong with this result ? $\endgroup$ – demarsylvain May 16 at 5:16

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