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Open ArcMap Open P:/arcgis/

Open ArcMap Open P:/arcgis/. The Joins Count. Provides a metric for the correlation among areal units. Each aeral unit is classified as either black (B) or white (W) The joins count is determined by counting the number of occurrences in the map of each of the possible joins [BB, WW, BW].

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Open ArcMap Open P:/arcgis/

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  1. Open ArcMap Open P:/arcgis/

  2. The Joins Count Provides a metric for the correlation among areal units. Each aeral unit is classified as either black (B) or white (W) The joins count is determined by counting the number of occurrences in the map of each of the possible joins [BB, WW, BW] Extreme Positive AC Extreme Negative AC No AC

  3. Moran’s I Moran’s I typically ranges for -1 to 1. An uncorrelated process has an expected I=0. Negative values of I indicate negative autocorrelation. Positive values indicate positive autocorrelation

  4. 2000 Presidential Election Results

  5. Adjacency Matrix

  6. 149.710

  7. Moran’s I of 0.4 indicates a fairly strong postive correlation between Bush votes in neighboring states

  8. Add Spatial Analyst Extension: • On Menu Bar: Tools  Extensions…  Select Spatial Analyst  Close • On Menu Bar: View  Toolbars  Select Spatial Analyst Open P:/arcgis/

  9. Air Pollution Trajectory Analysis Residence Time is the amount of time an air mass has spent in a grid cell on it’s way to a particular location. Incremental Residence Time Probability = ( ( ( ( Res. Times High Pollutants Res. Times All Conditions Σ All Res. Times Σ Res. Times High

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