search for: secondd

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2012 Sep 12
1
Contrasts in mixed effects model: difference between differences
...Latency ~ Second / First + (1|Subject) + (1|Item), data ) This gives me nice output like: SecondA:First2 -0.009879 0.008283 -1.19 SecondB:First2 -0.032136 0.008293 -3.88 SecondC:First2 0.006748 0.008131 0.83 SecondD:First2 0.006153 0.008206 0.75 Now, though, I am also interested in directly testing whether those differences differ between levels of Second. So, for example, whether the -0.009879 coefficient for SecondA:First2 is significantly different from the 0.006748 coefficie...
2013 Apr 06
2
manipulating R contingency tables
Hi Guys I am back with another thing that's puzzling me. I am creating contingency tables but then I want to filter out certain columns and also find if any entry in the table is 0. Example: gts labels A1 B2 G3 1 21 127 120 2 23 112 0 Here I want to remove B2 column from this table and also if any entry is 0 in this case G3 second row. Missing out on how to do