This script is different from TOS's LinearRegressionSlope study which seems to use the slopes of the designated-period linear regression lines to display the changing slope of linear regression lines (The TOS Linear Regression Slope). This one uses trigonometry. It computes ArcTangent of Rise/Run in radians then converts to degrees.

The angle is apparently in degrees, however the values on the right of the chart are different from values directed by ThinkScript. A ThingScript value designated as 0.01 degrees is plotted as 10 degrees on the chart.

This looks like it could be useful in picturing swing-tops and swing-bottoms, and of course, a positive (negative) slope indicates a rising( falling) trend.

Code:

```
SCRIPT:
# Slope of longer-term Moving Average------------------------
declare lower;
def c = close;
input length = 34;
input averageType = AverageType.Hull;
def avg = MovingAverage(averageType, c, length);
def height = avg - avg[1];
plot “Angle, deg” = Atan(height/length) * 180 / Double.Pi;
“Angle, deg”.SetDefaultColor(Color.BLUE);
“Angle, deg”.SetLineWeight(5);
“Angle, deg”.SetStyle(Curve.FIRM);
“Angle, deg”.SetPaintingStrategy(PaintingStrategy.LINE_VS_POINTS);
“Angle, deg”.HideBubble();
“Angle, deg”.HideTitle();
“Angle, deg”.AssignValueColor
(if
“Angle, deg” > “Angle, deg” [1]
then
Color.ORANGE else (if “Angle, deg” == “Angle, deg” [1] then Color.BLUE else Color.BLUE));
plot zero = 0.00;
zero.SetStyle(Curve.SHORT_DASH);
zero.SetDefaultColor(Color.WHITE);
zero.SetLineWeight(2);
zero.HideBubble();
zero.HideTitle();
input SIGpos = 0.01;
input SIGneg = -0.01;
plot Sp = SIGpos;
plot Sn = SIGneg;
Sp.SetStyle(Curve.FIRM);
Sp.SetDefaultColor(Color.LIGHT_GREEN);
Sp.SetLineWeight(1);
Sp.HideBubble();
Sp.HideTitle();
Sn.SetStyle(Curve.FIRM);
Sn.SetDefaultColor(Color.MAGENTA);
Sn.SetLineWeight(1);
Sn.HideBubble();
Sn.HideTitle();
def hiLevel = if “Angle, deg” >= 0 then Double.POSITIVE_INFINITY else Double.NEGATIVE_INFINITY;
AddCloud (0, hiLevel, Color.DARK_GRAY, Color.gray);
# END===================================================
```