[R] Significance of slopes

Hello R community, I have a question regarding correlation and regression analysis. I have two variables, x and y. Both have a standard deviation of 1; thus, correlation and slope from the linear regression (which also must have an intercept of zero) are equal. I want to probe two particular

[R] Manipulating lists

Hello R-Community, I am pretty new to R and I am fascinated what R can do! I am doing phylogenetic analysis in R, and my current project includes two problems that I am unable to solve, unfortunately. I am hoping that someone knows an easy, and R-typical solution, any help would be appreciated