import matplotlib
import pandas
import numpy
dim_vector = 200
y = numpy.random.normal(10, 1, size=(dim_vector))
pandas.DataFrame(y).plot.bar(figsize=(15,5))
<AxesSubplot:>
ticks_per = 5
seq_xticks = [ind if ind % ticks_per == 0 else 0 for ind, __ in enumerate(y)]
pandas.DataFrame(y).plot.bar(xticks=seq_xticks, figsize=(15,5))
<AxesSubplot:>