Dear all, As you know, before the ANOVA or t-test, we should test the normality of our data. Sometimes the transformation of our data is necessary, now I have a question, my data contains both positive and negative( such as 1, 2, -8, -5........). So, which kind of transformation should I take? 2011-01-12 Yong Zhang, Ph.D. Lab of aquatic insects & stream ecology Dept.of Entonology, Nanjing Agricultural University Nanjing, 210095,China Phone number: (+86) -25-84395241 E-mail:2010202035 at njau.edu.cn
Transformation of the data.
1 message · Yong Zhang