'Finding eps value in DBSCAN algorithmn

I am implementing DBSCAN on a dataset. First I sorted the data and then found the distance among its neighbors to find the minimum distance between them and plot the minimum distance. This will give the elbow curve to find density of the data points and their minimum distance(eps) values. But I am getting this kind of curve which looks different from the sample example I found on the internet. Please suggest me whether my obtained curve is OK or not and I have taken eps value as 0.7. Is this value correct or not???

My curve

sample example from the internet



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