error(-215)

edit

well,I've finished it as you said,however,and it goes again "error: (-215) samples.type() == CV_32F || samples.type() == CV_32S in function cv::ml::TrainDataImpl::setData"

please add your code to the question then.

look.The format has became mess.I can explain it if you need

yea, quite a mess. still your labels should be int, not float.

can you print out the shape & type of your traindata ? i guess, it's not a 2d numpy array

why are you casting pcl,nam,sex, etc. to int ?

it is:

>>> type(traindata)
<type 'numpy.ndarray'>
>>> np.shape(traindata)
(8, 891)
>>> type(labels)
<type 'numpy.ndarray'>
>>> np.shape(labels)
(891,)

I find the type of traindata is not float32 but float64.so,you know. anyway,you are right at begaining.Thank you a lot.