## removing last columns of excel dataframe using pandas by index

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Meeting point of python coders

data science using python

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if you want to calculate the distance between 4 features coordinates, you do it like that : A (1,2,5,1) B (7, 1, 3, 0) import math dist = math.sqrt((7-1)**2+(1-2)**2+(3-5)**2+(0-1)**2) print(dist) >>> 6.4807 …

a hard question in matplotlib is to annotate each point with a text or label. answers range from ax.annotate to some more weird stuffs. fortunately, the answer is a simple one! this question poses itself quite often in scatter plots the key without beating around the bush, the answer is using pyplot.text found here demo code… Continue Reading matplotlib scatter plot annotate / set text at / label each point