Re: [R-sig-Geo] Calculate the length of hail paths

2014-10-28 Thread Frede Aakmann Tøgersen
Message- From: r-sig-geo-boun...@r-project.org [mailto:r-sig-geo-bounces@r- project.org] On Behalf Of St John Brown Sent: 27. oktober 2014 15:50 To: r-sig-geo@r-project.org Subject: [R-sig-Geo] Calculate the length of hail paths Hello, I am trying to calculate the the length

Re: [R-sig-Geo] Calculate the length of hail paths

2014-10-28 Thread Barry Rowlingson
15:50 To: r-sig-geo@r-project.org Subject: [R-sig-Geo] Calculate the length of hail paths Hello, I am trying to calculate the the length of the trajectory of historic hail storms in the United States. I have written the R code to do this but my results do not seem valid

Re: [R-sig-Geo] Calculate the length of hail paths

2014-10-28 Thread St John Brown
Frede and Barry, Thank you very much for your responses. I spoke directly with the NOAA person responsible for maintaining the data. He said that the spatial lines do not represent paths, but point observations. I made an assumption that the lines were hail paths because there was no text

[R-sig-Geo] Calculate the length of hail paths

2014-10-27 Thread St John Brown
Hello, I am trying to calculate the the length of the trajectory of historic hail storms in the United States. I have written the R code to do this but my results do not seem valid. The majority of my results are around 14 meters which does not seem correct. My data comes from the NOAA in the