Draws an ellipse to represent an unobserved variable.
Syntax
result = pd.Unobserved (name)
result = pd.Unobserved (name, meanOrInterceptValue, varianceValue)
result = pd.Unobserved (name, meanOrInterceptName, varianceValue)
result = pd.Unobserved (name, meanOrInterceptValue, varianceName)
result = pd.Unobserved (name, meanOrInterceptName, varianceName)
result = pd.Unobserved (name, x, y, width, height)
result = pd.Unobserved (name, meanOrInterceptValue, varianceValue, x, y, width, height)
result = pd.Unobserved (name, meanOrInterceptName, varianceValue, x, y, width, height)
result = pd.Unobserved (name, meanOrInterceptValue, varianceName, x, y, width, height)
result = pd.Unobserved (name, meanOrInterceptName, varianceName, x, y, width, height)
The Unobserved method syntax has the following parts:
Part |
Description |
result |
(Object of type PDElement) An ellipse in the path diagram that represents an unobserved variable in the model. |
name |
(String) The name of the unobserved variable. |
meanOrInterceptValue |
(Double) The value of the variable's mean (if the variable is exogenous) or intercept (if the variable is endogenous). This argument should be supplied only when means and intercepts are explicit model parameters. |
meanOrInterceptName |
(String) The name of the variable's mean (if the variable is exogenous) or intercept (if the variable is endogenous). If means and intercepts are not explicit model parameters, meanOrInterceptName should be the empty string. |
varianceValue |
(Double) The value of the variable's variance. varianceValue should be supplied as an argument to the Unobserved method only when creating an exogenous variable. |
varianceName |
(String) A name for the variable's variance. varianceName should be supplied as an argument to the Unobserved method only when creating an exogenous variable. |
x |
(Double) The distance from the left edge of the path diagram to the center of the ellipse, measured in units of 1/96 inch. |
y |
(Double) The distance from the top edge of the path diagram to the center of the ellipse, measured in units of 1/96 inch. |
width |
(Double) The ellipse's width, measured in units of 1/96 inch. |
height |
(Double) The ellipse's height, measured in units of 1/96 inch. |
Remarks
If you do not specify a name or value for a parameter, the parameter will be unconstrained. If you do not specify a height, width, x-coordinate and y-coordinate, the ellipse will be assigned an arbitrary height and width and a random x-coordinate and y-coordinate.