Hi,

I have a graph that compares the germination of seeds in 3 different treatments over a period of 14 days.

by looking at the graph I can clearly see that seeds with capsules clumped together has the highest germination rate, followed by seeds with intact capsules but dispersed, and then seeds removed from capsules have the lowest germination rate.

how do I compare this in R?
the only thing I can think of is to use the total number of seeds germinated on day 14 and doing a t test to compare the different treatments. but I'd like to compare the entire 14day period, not just the overall germination. is this possible to do?

Excel has a built in function for calculated R. you have to use Linest() and ensure to show stats. It will produce all the information needed to calculate your t value. I would need data to show you how to do it, as it can be cumbersome. It also has the ability to tell you what factors were statistically significant.

ok but I'd like to do this using R, not excel and there is no Linest function in R