Most geoengineers I know are comfortable using Excel’s curve fitting functionality on a Chart. Have you ever found yourself manually copying the coefficients from the resulting equation on the chart into cells to program the equation to do some interpolation or extrapolation? It’s possible to do some of the same things with Excel’s built in statistical formulas as well. This post on the Excel blog Chandoo.org describes some of these functions like SLOPE, INTERCEPT, TREND, LINEST and FORECAST and provides some useful examples. [Source: Chandoo.org. Image: Chandoo.org]
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