For each density the appropriate name(s) of the parameters are displayed in blue. Click on the blue word density to see the choice of densities available (this will not necessarily include all those available in the BUGS language and described in Functions and functionals). ![]() Stochastic: Associated with stochastic nodes is a density. A colon-separated pair of integers is used to denote an index range of a multivariate node or plate. ![]() Vectors are denoted using a square bracket notation, with indices separated by commas. The name of a node starts with a letter and can also contain digits and the period character "." The name must not contain two successive periods and must not end with a period. Constant nodes are shown as rectangular boxes. A menu will drop down giving a choice of stochastic, logical and constant for the node type. The type of the node can be changed by clicking on the blue word type at the top of the doodle. When first created the node will be of type stochastic and have associated density dnorm. Typed characters will appear both at this caret and within the outline of the elipse. A flashing caret appears next to the blue word name. A new grey elipse will appear centered at the mouse cursor position. Creating a nodePoint the mouse cursor to an empty region of the Doodle window and click. Remove Selection: removes the highlighting from the selected node or plate of the Doodleif any. ![]() Note that the Doodlewill still be constrained by the snap grid, and if the snap is coarse then the Doodlecould be badly distorted. This command is useful if you run out of space while drawing the Doodle. The Doodle will move towards the top left corner of the window. Scale Model: shrinks the Doodle so thatthe size of each node and plate plus the separation between them is reduced by a constant factor. No grid, grid 1mm, grid 2mm, grid 5mm: options for the snap grid the snap grid to which the centre of each node and each corner of each plate is constrained to lie. Allows a choice of size of the Doodle graphic and the size of the nodes in the Doodle. New.Dialog box for creating a new Doodle. The Doodle menu contains options that apply to the whole Doodle. The graph is built up out of these elements using the mouse and keyboard. ![]() DoodleBUGS: The doodle editor General propertiesDoodles consist of three elements: nodes, plates and edges.
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