The only string column is the label column(class labels, n.pre, and c.pre). if the scoring = 'accuracy' then it works fine. So I think I need somehow to set up the postive_lable.. that I don't know how to do that.
--------------------------------------------------------------------------------------- *Prof. Malik Yousef , Associate Professor * *Zefat Academic College , Department of Information System * Home Page: https://malikyousef.com/ Google Scholar Profile : https://scholar.google.com/citations?user=9UCZ_q4AAAAJ&hl=en&oi=ao ---------------------------------------------------------------------------------------------------- On Thu, Aug 1, 2019 at 4:58 PM Guillaume Lemaître <g.lemaitr...@gmail.com> wrote: > It looks like your data contains string. You need to make some > preprocessing before to give it the linear model. > > On Thu, 1 Aug 2019 at 22:16, Malik Yousef <malik.you...@gmail.com> wrote: > >> Hello >> When in using the scoring to be 'f1' then i get an error. >> Here is the code and the error >> >> X=data >> y=target_column >> classifier = LinearSVC() >> rfecv = RFECV(estimator=classifier, step=0.1, >> cv=StratifiedKFold(5),scoring='f1') >> rfecv.fit(X, y) >> >> The error is : >> ValueError: pos_label=1 is not a valid label: array([u'c.pre', u'n.pre'], >> dtype='<U5') >> >> Please your help >> (I'm new to using scikit-leanr) >> >> --------------------------------------------------------------------------------------- >> *Prof. Malik Yousef , Associate Professor * >> *Zefat Academic College , Department of Information System * >> Home Page: >> https://malikyousef.com/ >> Google Scholar Profile : >> https://scholar.google.com/citations?user=9UCZ_q4AAAAJ&hl=en&oi=ao >> >> ---------------------------------------------------------------------------------------------------- >> _______________________________________________ >> scikit-learn mailing list >> scikit-learn@python.org >> https://mail.python.org/mailman/listinfo/scikit-learn >> > > > -- > Guillaume Lemaitre > INRIA Saclay - Parietal team > Center for Data Science Paris-Saclay > https://glemaitre.github.io/ > _______________________________________________ > scikit-learn mailing list > scikit-learn@python.org > https://mail.python.org/mailman/listinfo/scikit-learn >
_______________________________________________ scikit-learn mailing list scikit-learn@python.org https://mail.python.org/mailman/listinfo/scikit-learn
