CSCI N207 Data Analysis Using a Spreadsheet

Course Goals This is a technical course in which data analysis is the main emphasis and spreadsheet is the vehicle for carrying out the computation. Understanding the essence of data analysis is important – the first step toward problem solving.

Introduction Course History This is a 200 level class aimed at freshmen and sophomores but there are many upper level students taking this course.

What’s different about computers? You know lots of machines Computers seem different They seem to change Each program makes the computer act differently

Education in computing Learn basic concepts Get solid background Practice solving problems

Good computer users Little fear Background knowledge Problem-solving strategy

Definition of computer Universal Information Manipulator

Universal Works with all kinds of information Does all kinds of stuff to it Very few limitations

Information Seems to be able to work with anything Actually very limited Tiny pieces of data combined into complex information

Manipulator Seem able to do anything with data Actually very limited Simple commands combined into complex instructions

CSCI N207 Principles of Computing Basic Problem-Solving

Problem-Solving Use when you’re stuck Plan for complicated problems Backup when things go wrong

STAIR S - State the problem T- Tools A - Algorithm I - Implementation R - Refinement

State the Problem Use English No technical words! Make it clean and precise Be complete Usually the hardest step

Tools Identify some tools Could be programs commands things, ideas Be imaginative! List all potential tools

Algorithm Computer word for plan/strategy Re-state problem in terms of tools List of steps You should know how to do each step

Implementation Just do it! Translate algorithm into action Should be easiest step

Refinement It never goes right the first time Look back over previous steps Fix problems and try again