Split array at value in numpy

Question

I have a file containing data in the format:

0.0 x1
0.1 x2
0.2 x3
0.0 x4
0.1 x5
0.2 x6
0.3 x7
...

The data consists of multiple datasets, e

Answer 1

def getDataSets(fname):
    data_sets = []
    data = []
    prev = None
    with open(fname) as inf:
        for line in inf:
            index,rem = line.strip().split(None,1)
            if index < prev:
                data_sets.append(data)
                data = []
            data.append(rem)
            prev = index
        data_sets.append(data)
    return data_sets

def main():
    data = getDataSets('split.txt')
    print data

if __name__=="__main__":
    main()

results in

[['x1', 'x2', 'x3'], ['x4', 'x5', 'x6', 'x7']]