The kind of line a trendline fits to a series' values:
"linear"
"exponential"
"logarithmic"
"polynomial"
order
"power"
"movingAverage"
The kind of line a trendline fits to a series' values:
"linear": a straight line;"exponential": a curve that rises or falls ever faster, for values above 0;"logarithmic": a curve that rises or falls quickly, then levels out;"polynomial": a curve with as many bends as itsorder, less one;"power": a curve for values that grow at a steady rate, above 0;"movingAverage": the average of each point and the points before it, which smooths out the ups and downs.