def lsumdiffsquared(x,y):
    sds = 0
    for i in range(len(x)):
        sds = sds + (x[i]-y[i])**2
    return sds
Checks to see if the process for the pid in `pidfile` is running.
dataset/ETHPy150Open radlab/sparrow/src/main/python/third_party/stats.py/lsumdiffsquared--crossover with--dataset/ETHPy150Open facebook/sparts/sparts/daemon.py/status