<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def stackplot(marray, seconds=None, start_time=None, ylabels=None):
 """ will plot a stack of traces one above the other assuming marray.shape = numRows, numSamples """

    tarray = np.transpose(marray)
    stackplot_t(tarray, seconds=seconds, start_time=start_time, ylabels=ylabels)
    plt.show()