FE423 Review II

1
FE423 - Review II

• March 9, 2000

2
Overview

• Test Format
• Review I
• Viewing Data
• Getting Data Into Grid
• GRID Algebra
• AMLs

3
Test Format

• Open book, open note, open computer
• Questions easy, moderate, hard
• Answers
• correct inputs
• correct functions/commands
• AML code
• /comments

4
Review I

• Hydrologic Functions
• Cost Functions
• Regression
• Image Classification

5
Viewing Data

• Arcview
• extent - on map
• attribute - on table
• Describe
• Image
• Histogram

6
Getting Data Into Grid

• polygrid() - linegrid() - pointgrid()
• item
• cell size
• window size

7
GRID Algebra

• Arithmatic - /
• outgrid grid1 grid2 grid3
• Math functions
• log(), sin(), pow(g1,g2), max(g1,g2)
• Logical
• newdem con(dem gt 0, dem, 0)
• Nesting functions within functions
• outgrid log(grid1 sin(pow(grid2,grid3)))

8
AMLs

• Writing/saving/running
• just normal commands/functions
• variables
• directives
• / comments and type comments