User:Kithira/Course Pages/CSCI 12/Assignment 2/Group 1/Homework 4: Difference between revisions

Revision as of 22:37, 22 January 2013

Revision as of 23:18, 22 January 2013

Line 7:

def summarize(x, y, z):

sumT = 0

val1 = 0

for i in range(40):

sumTval2 = sumT + abs(sqrt(pow(x,2)+pow(y,2)+pow(z,2))-1.0)

if abs(val2 - if resval1) > 5.02:

resval2 = 0val1

sumT = sumT + val2

val1 = val2

return sumT

</source>

This code represents the function Summarize, which summarizes each input using <math>|(\sqrt ({x^2 + y^2 + z^2)}{-1}|</math>. Then, these values are summarized for ''i in range(40)'', which gives a value for 1 second. To prevent against data spikes the programs checks the difference between the previous value and the current value, and if the difference is greater than 2 it replaces the current value with the previous value.

<source lang="python">

Line 27 ⟶ 32:

row = line.split(",")

res = summarize(float(row[1]), float(row[2]), float(row[3]))

if res > 5.0:

res = 0

lis = lis + res

ave = lis/60.0

Line 36 ⟶ 39:

</source>

The second part of code is responsible for averaging the values over a minute then adding all the minutes to find a total result that determines the intensity classification. The filter we used deletes any value above 5.0 per minute. We determined this boundary value based off of the plot of the original summarized data over 10 hours. The range of 24192000 represents the total seconds in a week. Finally, we determined that our test subject was a moderately active person.