Trend Value Calculation
Definition
Trend Value represents the long-term movement or general direction of a time-series data. It is usually estimated by fitting a trend line using the method of least squares.
Formula
Trend Equation: Yt = a + bt
Where:
Yt = Trend value at time t
a = Intercept (trend value at origin)
b = Slope (rate of change per period)
t = Time period
Calculator
Used in time-series analysis for prices, production, arrivals, etc.