Special Topics in GIS Lab 1 Blog Post 1

 

When comparing the reference point to the average point that we calculated, both the horizontal and the vertical accuracy are about six meters off of the reference point which would put both in the 68% Precision Estimate. The only bias I could think of would be that when people went to go out and collect the waypoints they wanted to try to stay away from the buildings close by so that could be why they were moved over by about six meters on average.

Horizontal accuracy is calculated by using a measuring tool on a program like ArcGIS Pro in order to find out the distance between two points. The precision is measured by using whatever percentage you are looking for, for example 50%, and multiplying it by the total amount of values you have. If you get a whole number from that then you average the value at the number with the value of the number after it and you are given your percentile. If the number does not come out to a whole number then you would round up to the nearest whole number and then just use the value that corresponds to that number.