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回归线在R,可以使用下面的命令密谋回归线:如何绘制与rpy2
res=lm(height~age)
abline(res)
正如http://msenux.redwoods.edu/math/R/regression.php
我怎样才能做到同样的事情rpy2建议?我试图
from rpy2 import robjects
r = robjects.r
r.png('test.png')
x = range(10)
y = range(10)
r.plot(x, y)
r.abline(r.lm(x, y))
,但后来rpy2抱怨:
Error in formula.default(object, env = baseenv()) : invalid formula
Traceback (most recent call last):
File "plot_ratio_price.py", line 34, in <module>
r.abline(r.lm(x, y))
File "/Library/Python/2.7/site-packages/rpy2/robjects/functions.py", line 82, in __call__
return super(SignatureTranslatedFunction, self).__call__(*args, **kwargs)
File "/Library/Python/2.7/site-packages/rpy2/robjects/functions.py", line 34, in __call__
res = super(Function, self).__call__(*new_args, **new_kwargs)
rpy2.rinterface.RRuntimeError: Error in formula.default(object, env = baseenv()) : invalid formula
任何提示?谢谢!
由于错误消息说你传递了一个错误的公式,也许你应该已经过去了一个公式到'r.lm',如[这里]概述(http://rpy.sourceforge.net/rpy2/doc-2.2/html/robjects_formulae.html)? – joran 2012-04-03 17:52:40