%-% | R Documentation |

Difference in Sets

```
S1 %-% S2
```

`S1` |
A |

`S2` |
A |

Both `S1`

and `S2`

must be Sets.

Returns the difference `S1 - S2`

.

```
# Build two sparse sets
S <- Set$new(attributes = c("A", "B", "C"))
S$assign(A = 1, B = 1)
T <- Set$new(attributes = c("A", "B", "C"))
T$assign(A = 1)
# Difference
S %-% T
```

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