[PYTHON/MATPLOTLIB] plot 함수 : Scatter 차트 그리기

■ plot 함수를 사용해 Scatter 차트를 그리는 방법을 보여준다.

▶ 예제 코드 (PY)


import matplotlib.pyplot as pp
import numpy as np

trainXNDArray = np.random.random((1000, 1))
trainYNDArray = trainXNDArray * 2 + np.random.random((1000, 1)) / 3.0

testXNDArray = np.random.random((100, 1))
testYNDArray = testXNDArray * 2 + np.random.random((100, 1)) / 3.0

pp.plot(trainXNDArray, trainYNDArray, "ro")
pp.plot(testXNDArray , testYNDArray , "bo")

pp.legend(["training", "test"], loc = "upper left")

pp.show()

import matplotlib.pyplot as pp

import numpy as np

trainXNDArray = np.random.random((1000, 1))

trainYNDArray = trainXNDArray * 2 + np.random.random((1000, 1)) / 3.0

testXNDArray = np.random.random((100, 1))

testYNDArray = testXNDArray * 2 + np.random.random((100, 1)) / 3.0

pp.plot(trainXNDArray, trainYNDArray, "ro")

pp.plot(testXNDArray , testYNDArray , "bo")

pp.legend(["training", "test"], loc = "upper left")

pp.show()