RecommenderData (MOA: Massive Online Analysis 2014.05-SNAPSHOT API)

All Superinterfaces:

Serializable

All Known Implementing Classes:

AbstractRecommenderData, MemRecommenderData
```
public interface RecommenderData
extends Serializable
```

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addItem(int itemID, List<Integer> ratingUsers, List<Double> ratings)`
`void`	`addUser(int userID, List<Integer> ratedItems, List<Double> ratings)`
`void`	`attachUpdatable(Updatable obj)`
`void`	`clear()`
`void`	`close()`
`int`	`countRatingsItem(int itemID)`
`int`	`countRatingsUser(int userID)`
`void`	`disableUpdates(boolean disable)`
`double`	`getAvgRatingItem(int itemID)`
`double`	`getAvgRatingUser(int userID)`
`double`	`getGlobalMean()`
`Set<Integer>`	`getItems()`
`double`	`getMaxRating()`
`double`	`getMinRating()`
`int`	`getNumItems()`
`int`	`getNumRatings()`
`int`	`getNumUsers()`
`double`	`getRating(int userID, int itemID)`
`SparseVector`	`getRatingsItem(int itemID)`
`SparseVector`	`getRatingsUser(int userID)`
`Set<Integer>`	`getUsers()`
`boolean`	`itemExists(int itemID)`
`Iterator<Rating>`	`ratingIterator()`
`void`	`removeItem(int itemID)`
`void`	`removeRating(int userID, int itemID)`
`void`	`removeUser(int userID)`
`void`	`setRating(int userID, int itemID, double rating)`
`boolean`	`userExists(int userID)`

Method Detail

addUser

void addUser(int userID,
           List<Integer> ratedItems,
           List<Double> ratings)

removeUser
```
void removeUser(int userID)
```

addItem

void addItem(int itemID,
           List<Integer> ratingUsers,
           List<Double> ratings)

removeItem
```
void removeItem(int itemID)
```

setRating

void setRating(int userID,
             int itemID,
             double rating)

removeRating

void removeRating(int userID,
                int itemID)

getRatingsUser

SparseVector getRatingsUser(int userID)

getRatingsItem

SparseVector getRatingsItem(int itemID)

getRating

double getRating(int userID,
               int itemID)

getNumItems
```
int getNumItems()
```

getNumUsers
```
int getNumUsers()
```

getNumRatings
```
int getNumRatings()
```

getAvgRatingUser
```
double getAvgRatingUser(int userID)
```

getAvgRatingItem
```
double getAvgRatingItem(int itemID)
```

getMinRating
```
double getMinRating()
```

getMaxRating
```
double getMaxRating()
```

getUsers
```
Set<Integer> getUsers()
```

getItems
```
Set<Integer> getItems()
```

getGlobalMean
```
double getGlobalMean()
```

attachUpdatable
```
void attachUpdatable(Updatable obj)
```

disableUpdates
```
void disableUpdates(boolean disable)
```

countRatingsUser
```
int countRatingsUser(int userID)
```

countRatingsItem
```
int countRatingsItem(int itemID)
```

ratingIterator
```
Iterator<Rating> ratingIterator()
```

userExists
```
boolean userExists(int userID)
```

itemExists
```
boolean itemExists(int itemID)
```

clear
```
void clear()
```

close
```
void close()
```

Interface RecommenderData

Method Summary

Method Detail

addUser

removeUser

addItem

removeItem

setRating

removeRating

getRatingsUser

getRatingsItem

getRating

getNumItems

getNumUsers

getNumRatings

getAvgRatingUser

getAvgRatingItem

getMinRating

getMaxRating

getUsers

getItems

getGlobalMean

attachUpdatable

disableUpdates

countRatingsUser

countRatingsItem

ratingIterator

userExists

itemExists

clear

close