Plotting values from numpy array in python

Question

I have a numpy array X that has

[[-2.26188258 0.83339356] [-2.04141033 0.84618611] [-2.09993514 0.97093103] [-2.22863577 0.70044229] [-1.98995538 1.04537757] [-1.98696162 0.81267152] [-2.14523421 0.92106693]] 

I want to use pyplot.plot to use the first element of each item as x and the second element as y to plot a scatter plot.

xval = [x[0] for x in X] yval = [x[1] for x in X] ax.plot(x = xval, y = yval, marker = 'o', linestyle = 'None', color = dbclrs[i + 1]) 

this is what I tried, but it gives me an empty plot. I am trying not to use the scatter function.

Answer 1

The call signature of plot is

plot(*args,*kwargs) 

Hence you need to call

ax.plot(xval, yval, marker = 'o', ...) 

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Also note that if X is your array you can directly plot

ax.plot(X[:,0],X[:,1], ...)