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How To Draw Dotted Line In The Graph With Text Written On It?

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I have plotted a graph using matplotlib. I want to make straight lines with text written on it parallel to y axis in the graph at certain places.Does anyone know how to do that? lo

Solution 1:

You can add these before plt.show():

xpos = 2.5#x-value of the vertical line
text = "hello"#text you wanna add to the verical line

plt.vlines(x=xpos, ymin=0, ymax=250, color = 'black', linestyles="dashed")
plt.text(x=xpos, y=125, s=text, ha='center', va='center',rotation='vertical', backgroundcolor='white'))

Which produces:

enter image description here

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