How could I add trendline to a dot graph drawn using matplotlib.scatter?
如何将趋势线添加到使用matplotlib.scatter绘制的点图中?
1 个解决方案
#1
39
as explained here
如此处所述
With help from numpy one can calculate for example a linear fitting.
在numpy的帮助下,可以计算出例如线性拟合。
# plot the data itself
pylab.plot(x,y,'o')
# calc the trendline
z = numpy.polyfit(x, y, 1)
p = numpy.poly1d(z)
pylab.plot(x,p(x),"r--")
# the line equation:
print "y=%.6fx+(%.6f)"%(z[0],z[1])
#1
39
as explained here
如此处所述
With help from numpy one can calculate for example a linear fitting.
在numpy的帮助下,可以计算出例如线性拟合。
# plot the data itself
pylab.plot(x,y,'o')
# calc the trendline
z = numpy.polyfit(x, y, 1)
p = numpy.poly1d(z)
pylab.plot(x,p(x),"r--")
# the line equation:
print "y=%.6fx+(%.6f)"%(z[0],z[1])