sigma plot

  1. J

    Normality requirements for One-Way ANOVA, SPSS vs SigmaPlot

    Hi, I’m a bit confused about the requirements for normality using a One-Way ANOVA. I had always thought that in order to use a One-Way ANOVA, 2 requirements had to be met: 1 - The data should be normally distributed for each category of the independent variable. That is, say I had 3...
  2. N

    four data set contour Plot?

    Hi... Is there any option where I Can plot four variable dataset contour plot in any software... Please reply?