how to return number of decimal places in R

Question

I am working in R. I have a series of coordinates in decimal degrees, and I would like to sort these coordinates by how many decimal places these numbers have (i.e. I will w

Answer 1

In [R] there is no difference between 2.30000 and 2.3, both get rounded to 2.3 so the one is not more precise than the other if that is what you want to check. On the other hand if that is not what you meant: If you really want to do this you can use 1) multiply by 10, 2) use floor() function 3) divide by 10 4) check for equality with the original. (However be aware that comparing floats for equality is bad practice, make sure this is really what you want)