PPT-Ch 10: More on Variables and Subroutines

CP212 Winter 2012 Topics Subroutines Functions Modular programming 3 Main Benefits Variable and Subroutine Scope Using and Passing Parameters Module level Global variables Passing arrays. be wwwvestagraphicsbe Roy Howell. Texas Tech University. Latent Variables, Constructs, and Constructions . Premise: It takes both conceptual clarity and representational accuracy to advance the process of knowledge accumulation.. Style: Main program and subroutines. INF 123 – Software architecture. tdebeauv@uci.edu. 1. Outline. Some theory. Connector 1: Procedure . call . Style: Main program and subroutines. Connector 2: Socket. By. Shyam. . Gurram. Variables. Variables: There are certain rules for variables. A variable starts with the $ sign, followed by the name of the variable. A variable name must start with a letter or the underscore character. Answer. 1. What does a connector do?. 2. Can connectors be smart? complex? domain-specific?. 3. Name 2 connectors. 4. Can subroutines have side-effects? Can they call each other?. 5. def. . concat. (. Center for Health Policy and Healthcare Research. January 22, 2015. Steven D. Pizer, PhD. Associate Professor of Health Economics. Department . of Pharmacy . and Health Systems Sciences . School . of . Call . suba. Call . suba. Call . suba. Next instruction. Next instruction. Next instruction. Start of subroutine. Subroutine . suba. Jump back. Only one copy of the code is placed in memory. Whenever we wish to use the code, a jump is made to it . Science Fair Preparation. Testable Question . A question that asks how one change (independent variable) has a measureable effect on something else (dependent variable). . Testable Question . Does changing the height of the ramp affect the speed of a car going down the ramp?. Functions. & . Subroutines. (. procedures. in other languages) are subprograms that allow modular coding. Function. : returns a single explicit function value for given function arguments. Subroutine. 1. Walter F. Blood. Director of Product Management . Agenda. 2. Variables – A Quick Review. Variables in Reports. Variables in Procedures. Variables in Masters. A Quick Review. 3. The Basics. 4. Two types of Variable. Variables start with lower case letter. Variables are descriptive of what they store . Variables are one word . Use camel case is two . myRate. ; . Data types - specifies the kind of data you are storing. • State-space representation.. • Linear state-space equations.. • Nonlinear state-space equations.. • Linearization of state-space equations.. 2. Input-output Description. The description is valid for. Bergen, August 2009. Roy Howell. Texas Tech University. Latent . Variables, Constructs, and . Constructions.  . First, some acknowledgements:. Einar Breivik, whose questions made me change my thinking about the idea of formative measurement (after 20 years of being wrong). Alan Nicewander. Pacific Metrics. Presented at a conference to honor . Dr. Michael W. Browne of the Ohio State University, September 9-10, 2010 . Using the factor analytic version of item response (IRT) models, .