Summaries
## ActivityHour Id Calories
## Min. :2016-04-12 00:00:00.00 Min. :1503960366 Min. : 42.00
## 1st Qu.:2016-04-19 01:00:00.00 1st Qu.:2320127002 1st Qu.: 63.00
## Median :2016-04-26 06:00:00.00 Median :4445114986 Median : 83.00
## Mean :2016-04-26 11:46:42.58 Mean :4848235270 Mean : 97.39
## 3rd Qu.:2016-05-03 19:00:00.00 3rd Qu.:6962181067 3rd Qu.:108.00
## Max. :2016-05-12 15:00:00.00 Max. :8877689391 Max. :948.00
## TotalIntensity AverageIntensity StepTotal
## Min. : 0.00 Min. :0.0000 Min. : 0.0
## 1st Qu.: 0.00 1st Qu.:0.0000 1st Qu.: 0.0
## Median : 3.00 Median :0.0500 Median : 40.0
## Mean : 12.04 Mean :0.2006 Mean : 320.2
## 3rd Qu.: 16.00 3rd Qu.:0.2667 3rd Qu.: 357.0
## Max. :180.00 Max. :3.0000 Max. :10554.0
## ActivityDate Id TotalSteps TotalDistance
## Min. :2016-04-12 Min. :1503960366 Min. : 0 Min. : 0.000
## 1st Qu.:2016-04-19 1st Qu.:2320127002 1st Qu.: 3790 1st Qu.: 2.620
## Median :2016-04-26 Median :4445114986 Median : 7406 Median : 5.245
## Mean :2016-04-26 Mean :4855407369 Mean : 7638 Mean : 5.490
## 3rd Qu.:2016-05-04 3rd Qu.:6962181067 3rd Qu.:10727 3rd Qu.: 7.713
## Max. :2016-05-12 Max. :8877689391 Max. :36019 Max. :28.030
## TrackerDistance LoggedActivitiesDistance VeryActiveDistance
## Min. : 0.000 Min. :0.0000 Min. : 0.000
## 1st Qu.: 2.620 1st Qu.:0.0000 1st Qu.: 0.000
## Median : 5.245 Median :0.0000 Median : 0.210
## Mean : 5.475 Mean :0.1082 Mean : 1.503
## 3rd Qu.: 7.710 3rd Qu.:0.0000 3rd Qu.: 2.053
## Max. :28.030 Max. :4.9421 Max. :21.920
## ModeratelyActiveDistance LightActiveDistance SedentaryActiveDistance
## Min. :0.0000 Min. : 0.000 Min. :0.000000
## 1st Qu.:0.0000 1st Qu.: 1.945 1st Qu.:0.000000
## Median :0.2400 Median : 3.365 Median :0.000000
## Mean :0.5675 Mean : 3.341 Mean :0.001606
## 3rd Qu.:0.8000 3rd Qu.: 4.782 3rd Qu.:0.000000
## Max. :6.4800 Max. :10.710 Max. :0.110000
## VeryActiveMinutes FairlyActiveMinutes LightlyActiveMinutes SedentaryMinutes
## Min. : 0.00 Min. : 0.00 Min. : 0.0 Min. : 0.0
## 1st Qu.: 0.00 1st Qu.: 0.00 1st Qu.:127.0 1st Qu.: 729.8
## Median : 4.00 Median : 6.00 Median :199.0 Median :1057.5
## Mean : 21.16 Mean : 13.56 Mean :192.8 Mean : 991.2
## 3rd Qu.: 32.00 3rd Qu.: 19.00 3rd Qu.:264.0 3rd Qu.:1229.5
## Max. :210.00 Max. :143.00 Max. :518.0 Max. :1440.0
## Calories StepTotal
## Min. : 0 Min. : 0
## 1st Qu.:1828 1st Qu.: 3790
## Median :2134 Median : 7406
## Mean :2304 Mean : 7638
## 3rd Qu.:2793 3rd Qu.:10727
## Max. :4900 Max. :36019
## Id SleepDay TotalSleepRecords
## Min. :1503960366 Min. :2016-04-12 00:00:00.00 Min. :1.000
## 1st Qu.:3977333714 1st Qu.:2016-04-19 00:00:00.00 1st Qu.:1.000
## Median :4702921684 Median :2016-04-27 00:00:00.00 Median :1.000
## Mean :5000979403 Mean :2016-04-26 12:40:05.80 Mean :1.119
## 3rd Qu.:6962181067 3rd Qu.:2016-05-04 00:00:00.00 3rd Qu.:1.000
## Max. :8792009665 Max. :2016-05-12 00:00:00.00 Max. :3.000
## TotalMinutesAsleep TotalTimeInBed
## Min. : 58.0 Min. : 61.0
## 1st Qu.:361.0 1st Qu.:403.0
## Median :433.0 Median :463.0
## Mean :419.5 Mean :458.6
## 3rd Qu.:490.0 3rd Qu.:526.0
## Max. :796.0 Max. :961.0
Analysis of Daily Data
Usage
Distribution of Usage
00 to 19 ========= Low
20 to 29 ========= Medium
30 to 31 ========= High
Analysis of Hourly Data
Linear Models Hourly Data
##
## Call:
## lm(formula = Calories ~ TotalIntensity, data = MergedHourly)
##
## Residuals:
## Min 1Q Median 3Q Max
## -204.98 -15.30 -1.39 17.61 418.03
##
## Coefficients:
## Estimate Std. Error t value Pr(>|t|)
## (Intercept) 66.390525 0.208088 319 <0.0000000000000002 ***
## TotalIntensity 2.575435 0.008556 301 <0.0000000000000002 ***
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
##
## Residual standard error: 26.88 on 22097 degrees of freedom
## Multiple R-squared: 0.8039, Adjusted R-squared: 0.8039
## F-statistic: 9.06e+04 on 1 and 22097 DF, p-value: < 0.00000000000000022
##
## Call:
## lm(formula = Calories ~ StepTotal, data = MergedHourly)
##
## Residuals:
## Min 1Q Median 3Q Max
## -343.64 -18.44 -3.44 11.56 594.56
##
## Coefficients:
## Estimate Std. Error t value Pr(>|t|)
## (Intercept) 74.4446790 0.2608497 285.4 <0.0000000000000002 ***
## StepTotal 0.0716568 0.0003428 209.1 <0.0000000000000002 ***
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
##
## Residual standard error: 35.18 on 22097 degrees of freedom
## Multiple R-squared: 0.6642, Adjusted R-squared: 0.6642
## F-statistic: 4.37e+04 on 1 and 22097 DF, p-value: < 0.00000000000000022
Analaysis of Sleep Data
## [1] "Id" "SleepDay" "TotalSleepRecords"
## [4] "TotalMinutesAsleep" "TotalTimeInBed"
Linear Model of Sleep Data
##
## Call:
## lm(formula = TotalMinutesAsleep ~ TotalTimeInBed, data = sleepDay_merged)
##
## Residuals:
## Min 1Q Median 3Q Max
## -264.688 -5.565 10.953 21.793 61.033
##
## Coefficients:
## Estimate Std. Error t value Pr(>|t|)
## (Intercept) 22.12446 8.00817 2.763 0.00599 **
## TotalTimeInBed 0.86635 0.01683 51.483 < 0.0000000000000002 ***
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
##
## Residual standard error: 43.41 on 411 degrees of freedom
## Multiple R-squared: 0.8658, Adjusted R-squared: 0.8654
## F-statistic: 2650 on 1 and 411 DF, p-value: < 0.00000000000000022