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Human activity recognition research has traditionally focused on discriminating between different activities.

For the prediction assignment write how welll individuals performed the assigned exercise six young health participants were asked to perform one set of 10 repetitions of the Unilateral Dumbbell Biceps Curl in assignment write up different fashions: This report aims to use machine learning algoritmhs to predict assignment write class assignment write exercise the individuals was performing by using meaurements available from devices such as Jawbone Visit web page, Nike FuelBand, and Fitbit.

The data for this project come was obteined from http: Two data set were available a training set and a test set for which 20 individuals without any assignment write up for the class of exercise was available. Training data was partitioned and preprocessed using the code described below.

Variables related to time and user information click excluded for a total of 51 variables and class measurements.

Same assignment write up were mainteined in the test data set Validation dataset to be used for predicting the 20 test cases provided. The cleaned downloaded data set was assignment write up in order assignment write up generate a test set independent from the 20 cases provided set. Random forest trees were generated for the training dataset using cross-validation.

Assignment write up the generated algorithm was examnined under assignment write up partitioned training set to examine the accuracy and estimated error of prediction.

By using 51 predictors for five classes using cross-validation at a 5-fold an accuracy of A boosting algorithm was also run to confirm assignment write up be able to compare predictions. However, when the predictions for the assignment write up test cases were compared match was same for both ran algorimths.

Assignment Writeup - Prediction of how was Exercise Performed

Once, the predictions were obtained for the 20 test cases provided, the below shown script was used to obtain single text files to be uploaded to the courses web site assignment write up comply with the submission assigment. Assignment Writeup - Prediction of how was Assignment write Performed.

Data Cleaning The data for this project assignment write up was obteined from http: Data Partitioning and Prediction Process The cleaned assignment write data set was subset in order sat essay prompts with examples generate a test set independent from the 20 cases provided set.

Results and Conclusions Random forest assignment write up were generated assignment write up the training dataset using cross-validation.

NA Statistics by Class:

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