how can show markers in matplotlib

Question

I make a plot but in my plot i can show just few of my markers

x_time = chine["time"].copy()


x = chine.drop("time", axis=1)

y_static = chine["static"].copy()
plt.plot(x_time, y_static, marker='o', label='static')
y_stirring = chine["stirring"].copy()
plt.plot(x_time, y_stirring, marker='v', label='stirring')
y_ultrasound = chine["ultrasound"].copy()
plt.plot(x_time, y_ultrasound, marker='.', label='ultrasound')

plt.legend()
plt.xlabel("time")

enter image description here

when i change order the result is change but i cant show other markers enter image description here

Answer 1

If you want to show your points, you don't really have a choice but to use:

plt.plot(..., marker="o")

They should clearly show the points on your graph. If they aren't, then it means you have too little data points.