Wednesday, September 3, 2025

Module 1 - Data Accuracy Fundamentals

 


The purpose of this lab was to understand the difference between precision and accuracy, be able to calculate vertical and horizontal position accuracy and precision, and then calculate root-mean-square error and cumulative distribution function. The horizontal precision identified is around 4.16 meters. The horizontal accuracy is difficult to achieve as it is unable to be truly perfect. To measure the horizontal accuracy, you would need precise survey equipment or have landmarks that identify the exact location. The most accurate someone can be is around 1cm of accuracy, and that kind of equipment is expensive. Horizontal precision is measured by multiplying the total number of values by the target percentile. If the percentile was a whole number, then I needed to count the numbers from top to bottom until the number was reached, then I got the average of that number and the one after to get the horizontal precision.

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