inverse-transform | 易学教程

Inverse Transform Predicted Results

阅读更多关于 Inverse Transform Predicted Results

问题 I have a training data CSV with three columns (two for data and a third for targets) and I successfully predicted the target column for my test CSV. The problem is I need to inverse transform the results back to strings for further analysis. Below is the code and error. from sklearn import datasets from sklearn import svm from sklearn.neighbors import KNeighborsClassifier from sklearn.linear_model import LogisticRegression from sklearn.cross_validation import train_test_split from sklearn

SQL Statement - SELECT the inverse of this query

阅读更多关于 SQL Statement - SELECT the inverse of this query

I have this query and i want to select the inverse of what that select. SELECT Guide.id FROM Guide INNER JOIN GuideAvailability ON Guide.id = GuideAvailability.guideId WHERE GuideAvailability.startDate IN (1377946800) GROUP BY GuideAvailability.guideId HAVING COUNT(DISTINCT GuideAvailability.id) = 1 Is there a easy way to solve my problem ? Simply use this query: SELECT * FROM Guide where id NOT IN ( SELECT Guide.id FROM Guide INNER JOIN GuideAvailability ON Guide.id = GuideAvailability.guideId WHERE GuideAvailability.startDate IN (1377946800) GROUP BY GuideAvailability.guideId HAVING COUNT

SQL Statement - SELECT the inverse of this query

阅读更多关于 SQL Statement - SELECT the inverse of this query

问题 I have this query and i want to select the inverse of what that select. SELECT Guide.id FROM Guide INNER JOIN GuideAvailability ON Guide.id = GuideAvailability.guideId WHERE GuideAvailability.startDate IN (1377946800) GROUP BY GuideAvailability.guideId HAVING COUNT(DISTINCT GuideAvailability.id) = 1 Is there a easy way to solve my problem ? 回答1: Simply use this query: SELECT * FROM Guide where id NOT IN ( SELECT Guide.id FROM Guide INNER JOIN GuideAvailability ON Guide.id = GuideAvailability