Lab 5 Questions and Definitions

Change the projection of your map, and its center, to something more appropriate than the default (as discussed in the lectures on Map Projections). Note which projection you choose and why in your Lab Log.

I used the Albers conical projection. The Albers projection is very close to the default Peters projection. The shape is minimally distorted between the two ends of Oklahoma. The ends are drawn upwards to meet the North Pole. The land area of the map did not change and the only adjustment I had to make was that I had to re-center it back to -90.

DBF4 / Dbase4 file- This file format is used for ArcGIS in Microsoft Excel. The cells in which the information is in is used as data in ArcGIS when it is transferred for states and countries for population and other statistics about the countries.
Select by Attributes- Shows different words in which helps you develop the query you need for analysis of a specific phenomenon for a map.
Query- a formula where you create a certain equation for a state. For example, if you want to create a formula for the age in the state of Ohio, you would select the state “+” the attribute you want “+” anything else you want to add in the query for your viewing.
Fields (in a Table)- Shows you values of a statistic in a table for a country or a state.
Records (in a Table)- results show in the ArcGIS relational database.
Attributes- an entity or any value of calculation used for analysis in ArcGIS.
Relational Database- Shows the attributes of a particular data set, in this case, the state that is being viewed.
Join function- Used to merge statistics about a state into the created map on ArcGIS. This shows the relationship between a particular region of the created map and the time period or other facts that is detailed in the statistics.
Calculate / Field Calculator- Calculates the particular value you want to evaluate in ArcGIS. For example, the year 1910-the year 1900 vs. the year 1920 vs. the year 1910.