[R] Kruskal Wallis Post hoc

[jhartsho]

Hi, I have searched and found a response to a question similar to mine but
when I tried the code, R says it's not an actual function so I thought I'd
ask here.

http://r.789695.n4.nabble.com/file/n4633035/Cookies.csv Cookies.csv 

I have attached the data I am using.  I am trying to look at two things: how
moisture content changes over time, and how it changes along the length of a
log (bolt).  My data is not normal and doesn't become normal after ArcSin or
Log transformations.  Because the 'Days' has 4 levels, I performed a
Kruskal-Wallis (kruskal.test) and got significant results.  Same for
comparing 'Cookie'. 

Neither of these have only 2 levels so significance here doesn't really
explain it in depth....but everything I'm finding for post hoc with a KW
says Mann Whitney.  But when I try this (wilcox.test) in R it doesn't work -
bc it should only have 2 levels.

Can I simply run a tukeyHSD to see differences between levels?

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