Weave: Mortgage Lending

Instructions for manipulating the map and the scatter plot:

The data displayedin the map is linked to both the data table and the scatterplot, meaning that if you select data in the data table or dots (which represent census tracts) in the scatterplot, the corresponding areas on the map will be highlighted.

Map: To change the variable being mapped, click on the legend title ("Average Loan Amount, 2010") and select a category from the left side of the table and a variable from the right side of the table.

Scatter plot: To change the variables on the X (horizontal) and Y (vertical) axes, simply click on the title and select different variables for each axis. Also notice the thin line - this is a regression line that shows "neatness" of fit. It shows the relationship between the two variables. Any point that is a significant distance from the line is an "outlier," meaning that the expected relationship (the line) does not hold.

Data table: You can download the data being mapped by clicking the wrench icon in the upper-left corner of the table. You can also click on any column to sort that variable by most to least (or vice versa). And, of course, by selecting specific rows in the table, the corresponding areas in the map will be highlighted.

If you are interested in a small area, choose the "select" tool - underneath the zoom bar on the map - and draw a box around the area that you want to analyze in-depth. Then on the menu bar, click "Subsets", then "Create subsets from selected records." You'll notice that both the legend and the scatter plot changed to reflect only the area that was selected.