# data should be a list of Data, where each list element corresponds to

# the results of a device

def __init__(self, data, labels):

self.data = data

self.labels = labels

def plotAverageLatency(self):

averages = [d.averageLatency() for d in self.data]

dat = { "device" : range(1, len(averages) + 1), "average" : averages }

dataframe = pandas.DataFrame(dat)

chart = ggplot.ggplot(ggplot.aes(x="device", weight="average"), dataframe) \

+ ggplot.labs(title="Average Latency Per Device") + \

ggplot.ylab("Average Latency (ms)") + \

ggplot.xlab("Device Number") + \

ggplot.geom_bar(stat="identity")