hedekar
hedekar t1_ivls9qj wrote
Reply to comment by reficius1 in [OC] First and last frost dates for Concord, NH for 80 years. The growing season is getting longer. Repost because the image got deleted somehow. by reficius1
The data should determine which trendline makes sense to use. Usually this is done by calculating r-values of various trendline fits. By publishing a linear trendline on the chart you're claiming the data has a linear pattern. I'm asking for the evidence you used to make that claim.
hedekar t1_ivivxak wrote
Reply to [OC] First and last frost dates for Concord, NH for 80 years. The growing season is getting longer. Repost because the image got deleted somehow. by reficius1
What's the r value of those trend lines and why did you choose linear trendlines?
hedekar t1_j9s3t4c wrote
Reply to comment by Rare-Notice7417 in [OC] The Topography of the United States by eon_james
https://www.usgs.gov/the-national-map-data-delivery/gis-data-download