Re: IJ & R?

Posted by Andy Weller on Jul 20, 2007; 10:43am
URL: http://imagej.273.s1.nabble.com/IJ-R-tp3698793p3698801.html

Dear all,

Gabriel's IJ/R related issues has prompted me to ask a stats related
question. This is slightly off-topic, so I apologize in advance, but
maybe somebody out there has some advice/recommendations...

I am relatively new to stats and R and have been getting more lost in it
everyday! For some time now we have been gathering:

a) some (continuous) ImageJ-based measurements that are "real world"
physical descriptions of organisms from microscope images, and

b) some (continuous) ImageJ-based "traditional" measurements (gray value
distribution, texture, etc.) that automatically acquired from the same
microscope images.

Initially I am after a reliable technique to obtain parsimony in both
datasets. I have tried several things (PCA, R^2, etc) but I get slightly
different results and I don't know which ones to trust, or whether
there's a more reliable technique...?!

After this I want to find out which measurements between the two
datasets correlate best. In essence, I want to find out which
"traditional" measurements mean the same thing as the "real world"
measurements.

I apologize again for the off-topic issue, but hopefully somebody out
there understands my intentions and has some pointers/suggestions to
help me in my quest?!

I look forward to your replies, Andy