x = ['01-02', '02-02', '03-02', '04-02', '05-02'] y = [2, 2, 3, 7, 2] fig, ax = plt.subplots(1, 1) ax.bar(range(len(y)), y, width=0.3,align='center',color='skyblue') plt.xticks(range(len(y)), x, size='small') plt.savefig('/home/user/graphimages/foo2.png') plt.close()
I want to draw grid lines (of x & y) behind the bar graph.
Try setting the grid after plotting the DataFrame. Also, to get the horizontal grid, you need to use ax2. grid(axis='y') .
Matplotlib doesn't show the minor ticks / grid by default so you also need explicitly show them using minorticks_on() .
To add a grid you simply need to add
ax.grid()
If you want the grid to be behind the bars then add
ax.grid(zorder=0) ax.bar(range(len(y)), y, width=0.3, align='center', color='skyblue', zorder=3)
The important part is that the zorder
of the bars is greater than grid. Experimenting it seems zorder=3
is the lowest value that actually gives the desired effect. I have no idea why zorder=1
isn't sufficient.
EDIT: I have noticed this question has already been answered here using a different method although it suffers some link rot. Both methods yield the same result as far as I can see but andrew cooke's answer is more elegant.
I am suggesting another solution since the most voted answer did not work for me. You can use the following code to set the gridlines behind the plot.
ax.set_axisbelow(True) ax.grid(color='gray', linestyle='dashed')
I got this code from this answer.
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