Set PCA loadings (aka arrows) in a 3d Scatter plot

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HI @Mirk0_98, I actually never used annotitions in 3D. Does the example 3D Annotations help?

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Instead of using annotations you could use additional scatter3d traces. Here I did this in 2D but it’s going to be pretty similar in 3D:

Plot arrow ( given direction - angle) at given coordinates

Hi @yogi_dhiman , if you do not mind the circles instead of arrowheads, you could do something like this: import plotly.graph_objects as go import numpy as np # set data x = np.asarray([0,1,2,3,4,5,6]) y = np.asarray([0,1,2,3,4,5,6]) a = np.asarray([55,-20,34,22,76,-20,-80]) length = 1 # calculate coordinates of second vector point dx = x + np.cos(np.radians(a)) * length dy = y + np.sin(np.radians(a)) * length # add start and end points to array xx = np.c_[x, dx] yy = np.c_[y, dy] # create…