10 2018 档案

数据挖掘比赛，构建矩阵时的脑残行为
摘要：scipy.sparse.hstack(blocks, format=None, dtype=None)[source]¶ Stack sparse matrices horizontally (column wise) sequence of sparse matrices with compat 阅读全文
posted @ 2018-10-11 16:58 在下小白 阅读(425) 评论(0) 推荐(0)
ValueError: X needs to contain only non-negative integers.
摘要：for feature in short_cate_feature: enc.fit(data[feature].values.reshape(-1, 1)) base_train_csr = sparse.hstack((base_train_csr, enc.transform(train_x[ 阅读全文
posted @ 2018-10-10 17:30 在下小白 阅读(641) 评论(0) 推荐(0)
During handling of the above exception, another exception occurred:
摘要：今天在计算机矩阵相关性，准备删除相关性高的列中，出现了这样的问题： During handling of the above exception, another exception occurred: 问题原因又说python版本过高，我确实是3.7有点高，还有其他的。 不清楚，直接import 阅读全文
posted @ 2018-10-08 21:43 在下小白 阅读(27699) 评论(1) 推荐(0)
np.nan is an invalid document, expected byte or unicode string.
摘要：def get_feature(df,all_data,cols,vec_col): enc = OneHotEncoder() df_x=np.int64(df[cols]) cv=CountVectorizer() for feature in vec_col: cv.fit(all_data[ 阅读全文
posted @ 2018-10-07 01:27 在下小白 阅读(3012) 评论(0) 推荐(0)