GIS 3015 Data Classification

GIS 3015: Data Classification

Process summary

1) Copied data from R drive to S drive and unzipped the data

2) Opened ArcGIS and added census data

3) Added three more Data Layers

4) Copied and pasted census data into new data layers

5) Renamed added data layers to denote which classification methods represented

6) Under Properties for the data, went to Symbology to select Quanties

7) Selected p_black in the Value field

8) Selected requested classification for layer

9) Saved map as Data_Classification_BED.mxd to S drive

10) Repeated steps 6-8 for each layer and saved map each time

11) Switched to Map View to develop map showing all four requested calssifications

12)  Added north arrows, legends, scales, titles and other required text

13)  Saved map again and exported as .jpg

14) Deleted all layers except Equal Interval

15) Saved this map as Equal_Interval_BED.mxd to S drive

16) In Map View, added north arrow, legend, scale, title and other required text

17) Saved map and exported to .jpg

I felt that Equal Interval showed the truest picture for the required information.  With the one county sitting way out with the 95%, showing very many counties in that group didn’t give a true enough picture.  I would have performed a manual classification on this particular set of dat to give a truer picture of reality.  That would have been possible with the small amount data for this particular exercise.