What I'm trying to do here is display data for the previous 10 seconds only. Can someone help me understand why this code doesn't update the graph even though I alter the lists xData and yData that it refers to? The lists are never longer than 10 items but the graph does not 'shuffle' the x-axis over... how do i show only the data in the lists?
import random
xData = [0]
yData = [0]
def graph():
plt.show()
while True:
try:
if len(xData) < 11:
xData.append(xData[len(xData) - 1] + 1)
yData.append(random.randint(0, 20))
else:
xData.pop(0)
yData.pop(0)
xData.append(xData[len(xData) - 1] + 1)
yData.append(random.randint(0, 20))
plt.plot(xData, yData)
plt.title('hello =)')
plt.xlabel('time')
plt.ylabel('groove')
plt.pause(0.25)
except:
plt.close()
break
while True:
try:
selection = input(
"[1] Temperature\n[2] Light Level\n[3] Volume\n[4] Random filler bs\nSelect graph to show by number:\n")
if selection == "4":
graph()
except KeyboardInterrupt:
break
