In this figure, Nielsen - Gammon has
added linear trend lines to each ENSO category, and he notes that they all correspond to warming trends of about 0.16 °C per decade.
Not exact matches
«After many requests, I finally
added trend -
lines (
linear least - squares regression) to the graph generator.
The chart's red and grey curves are 3 - year averages and a
linear trend line has been
added (dark green).
In your third figure you display a straight
line fit to curvy data; why not
add the model fit on which you base your calculation, that is, the
linear trend plus the 60 yr.