from collections import defaultdict
from scipy.stats import ttest_ind
import numpy as np

if __name__=='__main__':
    response_times = defaultdict(list)
    with open('log.txt', 'r') as input_file:
        for line in input_file:
            index, response, time = line.split(',')
            response_times[response].append(float(time))

    print 'Mean response times'
    for k in response_times.keys():
        print(k, np.mean(response_times[k]))

    pval = ttest_ind(response_times['/index'], response_times['/test'], equal_var=False)[1]
    print 'P-value =', pval
    if pval > 0.05:
        print 'H0 hypothesis accepted'
    else:
        print 'H0 hypothesis rejected'