SUNY Geneseo Department of Computer Science

Cell Arrays, Day 3

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Misc

Exams are graded

• Average = Median = 30 / 50

Final exam

• Friday, May 9, 12:00 noon
• Comprehensive, but emphasizing material since 2nd hour exam (e.g., cell arrays, load/save, debugging)
• Style similar to hour exams, but more questions
• Problem: you can’t all take it at the same time and use Matlab
  • Option 1: Everyone gets 3 hours to do a test designed for 2, no Matlab but otherwise open computer
  • Option 2: Sections get 90 minutes apiece to do a test designed for 90, open computer and Matlab
  • Opinions?

SOFIs

• aka “student opinion of faculty instruction”
• Useful to me, especially any comments on how the flipped format and groups worked
• Online form via Knightweb
  • Click “Surveys” button, then “SOFI survey”

Math study abroad panel

• Panel of students who have done it
• Monday, 4/28, 5:00 PM, Fraser 119

Questions?

Quiz

Example solutions

>> x = {1}        % Store a cell array containing the number 1 in x
x = 
    [1]
>> x = (1)        % Store the number 1 in x (harmless but unnecessary parentheses)
x =
     1
>> x = [1]        % Also store 1 in x (as a 1-by-1 matrix, same as scalar to Matlab)
x =
     1
>> c = { 1 'hello' 2 }
c = 
    [1]    'hello'    [2]
>> c{1}          % Get the contents of the 1st cell in c
ans =
     1
>> c(1)          % Get the 1st cell in c
ans = 
    [1]

Cell Arrays

Comparing values in relational database application of cell arrays

• strcmp works well for strings, but not for numbers
•  == works well for all types, as long as matrices are same size
• isequal seems to work best

Next

More cell arrays and relational databases

Handout