====== Week 5 ======
~~NOTOC~~

===== More Tables / Midterm 1 =====

**//Ch. 8: Processing Tables with Nested Functions //**

==== TUESDAY ====

  * Announcement: 
    * Coaching Hours posted! 
    * I'm grading assignment 2 (available soon in Gradescope) \\ \\

  * Reminders:
    * Check Campuswire regularly for important and timely class announcements, like coaching hours \\ \\
    * Lab 4: 
      * quite a few people haven't handed it in yet
      * if you're still finishing up / need to be checked off, please see me during office hours (or see one of our coaches)
      * no late penalty, but please finish ASAP (no later than this Thursday) \\ \\
    * Assignment 3: due this Thursday evening, 11:59pm \\ \\ 
    * Exam 1 Reminders: 
      * This Friday: October 1st, during lab 
      * Review: Thurs \\ \\ 

  * Processing Tables
    * [[https://dcic-world.org/2021-08-21/processing-tables.html|DCIC Ch. 8]]
    * Phyllis's notes: 
      * review of passing functions as parameters to other functions, including nested functions (this is not in Ch. 8, but it is a powerful technique)
      * viewable/runnable in [[https://drive.google.com/drive/u/3/folders/1-hMLeiP5KMr69vn5sDGbfXgTvnea1YhO |Copy of lec09.arr]]
      * [[https://vassar.zoom.us/rec/share/DaiOHbQhmV9xc3ddQs_hXUANV5sva9sDb3baly6dQga_Ky_ZjMEdDI8u2XFzlA92.B_hmsGzIE_HWnFzL|zoom recording of lecture]]  Passcode: L5YZmy6? (possibly useless, since I forgot to share the screen and did a lot of white-board work during class -- sorry!)


==== Thurs ====


**Review and Promises for Midterm** 

  * Logistics:  \\ \\
      * 75 points 
      * designed the length with a 75-minute lecture in mind
      * actually have 120 minutes for our lab, so time should not be an issue 
      * budget your time \\ \\ 
  * Reference notes (from the [[https://www.cs.vassar.edu/courses/cs101-2021-02/top#exams|Exams]] section of the syllabus):
      * you may refer to an 8.5×11-inch piece of paper, double-sided, with anything written (or typed) on it that you want. 
      * preparing this sheet of notes is an excellent way to study, encouraging you to consider what’s important that you will want to refer to. \\ \\ 
    * You are on your honor:
      * we will ask you to attest that you have not discussed, and will not discuss, the contents of the exam with anyone until everyone has taken the exam. 
      * we will let you know as soon as all students have taken the exam \\ \\  

  * Topics:  \\ \\
    * You are generally responsible for the material in 
      * chapters 1 through 8 of the DCIC text
      * lectures
      * labs 1--4
      * assignments 1--3 \\ \\

  * Exam outline: **//not finalized yet!//** \\ \\ 
    * 6 questions, points for each question will be indicated
    * sample questions shared in CPO [[https://code.pyret.org/editor#share=1yfp1-6cClELcAkfxSxPIDDDfcu6pV5zP&v=1904b2c|here]]   \\ \\ 
    * **Problem 1** (15 points) Pyret expressions. Given a series of Pyret expressions, indicate either what each expression evaluates to, or whether it results in an error. Expressions may involve:
      * values of type Number, String, Boolean (no Image values)
      * functions that take and return those types of values 
      * operations/operators over those types of values
      * parenthesized expressions
      * named values of the form ''NAME = EXPRESSION''
      * if-else, and if-else if-else expressions  \\ \\ 
    * **Problem 2** (5 points) Fixing a function. Given a function with problems, identify and fix the problems.
      * identifying the problems may involve carefully reading the function header, docstring, examples, and body of the function
      * if the body and/or tests don't match the behavior described in the docstring, fix whatever is wrong so they do \\ \\  
    * **Problem 3** (6 points) Incomplete function: missing examples in ''where:'' clause. 
      * fill in missing examples--enough to fully test the function \\ \\
    * **Problem 4** (10 points) Incomplete function: missing body. 
      * this time you are given the where" clause for a function, but the rest of the function is missing!
      * fill in the missing function header, docstring, and function body \\ \\ 
    * **Problem 5** (10 points) Reading and understanding code. Given a function:
      * indicate which tests pass or fail 
      * briefly describe (in words, not code) what you would need to change to make all of the tests pass \\ \\ 
    * **Problem 6** (29 points) Table Processing. Multi-part question. Given a table, and a function that takes a row from the table:
      * a. (2 points) fill in the expected return values in the where clause of the function
      * b. (3 points) write the docstring for the function
      * c. (4 points) write an expression to access the value in a particular row and column of the table
      * d. (6 points) write an expression that involves some form of table processing to compute/locate a particular value within the table
      * e. (6 points) given a table expression, show the resulting table
      * f. (8 points) write a predicate function that takes a row of the table and determines whether that row satisfies (returns ''true'') the given criteria. 




==== Friday ====

  * Midterm 1 
  * No lab, but we'll still meet in SC 309 at usual lab time for the test