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Hello I'm stuck (yet again) on using NV function. I set up an intercoder test and had 2 coders code 48 images(sources) to 27 codes(nodes) and I'm trying to deal with the results of the coding comparison which NV only calculates for every source against every node, resulting in a spreadsheet with 1296 lines of comparison. Exporting the results into excel to try and calculate averages also yields nothing as it continues to return: "ErrorEvaluation of function AVERAGE caused a divide by zero error." I can see formulas [=IF($Q30-$O30=0,1,($P30-$O30)/($Q30-O30))] in the NV example: http://redirect.qsrinternational.com/examples-coding-comparison-nv10-en.htm, however not using Excel very often or being terribly proficient with formulas I'm not sure how to setup and apply a formula to my spreadsheet columns to achieve salient results of Kappa and % agreement? All sources are to be weighted equally. Another issue is when looking at the node reference counts I also can;t see which coder applied which codes to what images. In node view it only shows who coded(modified) what last. I assigned colours to each coder and they also do not show up. Any help would really be appreciated, I'm terribly behind in my work ... Thanks!