Show only exact values of data point on axes with matplotlib figure

Question

I want to show only exact values (x, y) on axes or coordinates of data point by matplotlib. My work below that

def plot_sample_individual(id = None):
  if id is None:
    id = random.randint(0, len(ca_the))
  fig, ax = plt.subplots(1, 1, figsize=(5, 5))
  ax.plot(week[:7], ca_the[id, :],'--ro')
  ax.set_title('ID cá thể '+ str(ID[id, 0]))
  ax.set_ylabel('Sản lượng trứng trung bình tuần')
  ax.set_xlabel('Tuần')

and result of code is:

How to show only 3 values on axes y and 5 values in axes x?

Answer 1

Use the x and y data to set the Axes ticks :

from matplotlib import pyplot as plt
x = [24,25,26,27,28]
y = [7,4,5,4,4]
fig,ax = plt.subplots()
ax.plot(x,y)
ax.set_xticks(x)
ax.set_yticks(y)
plt.show()
plt.close()

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Ticks and tick labels