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pythonplotkernel-density

Find all values such that .. from a density plot in Python

I plot(x,y) a chart, for which I want to find two things: - all values of x for which y>some specified value, - all values of y for which y>some specified value.

chart

How can I do it?

Solution

  • Using numpy:

    import numpy as np

x = np.linspace(0,25,101) #x: 101 values between 0 and 25
y = x**2/20 

x[y>30]  #filter output: [ 24.5 ,  24.75,  25.  ]  
y[y>30]  #filter output: [ 30.0125  ,  30.628125,  31.25    ]

    This assumes that you have access to the values which generated the plot.