[R] two-sample mean difference

Dear list, I have a time-series Y of length n which has significant auto-correlation at lag 1, as indicated by acf plots. According to certain criteria, I have defined two groups of observations n1 and n2. The objective is to estimate the difference of the means between these groups and test

[R] R forum

Hi all! I would like to fit a simple regression model to a number of observations. However, I have reasons to think that maybe the relationship I am testing is significant only for a number of them. Is there some automated method to test the model for all possible data combinations? Thank y

[R] R forum

Hi all! I would like to fit a simple regression model to a number of observations. However, I have reasons to think that maybe the relationship I am testing is significant only for a number of them. Is there some automated method to test the model for all possible data combinations? Thank y