join.freq {agricolae} | R Documentation |

## Join class for histogram

### Description

In many situations it is required to join classes because of the low .frequency in the intervals. In this process, it is required to join the intervals and ad the .frequencies of them.

### Usage

```
join.freq(histogram, join)
```

### Arguments

`histogram` |
Class graph.freq |

`join` |
vector |

### Value

New histogram with union of classes.

### Author(s)

Felipe de Mendiburu

### See Also

`polygon.freq`

, `table.freq`

, `stat.freq`

,
`inter.freq`

, `sturges.freq`

, `graph.freq`

,
`ogive.freq`

, `normal.freq `

### Examples

```
library(agricolae)
data(natives)
# histogram
h1<-graph.freq(natives$size,plot=FALSE)
round(table.freq(h1),4)
# Join classes 9, 10,11 and 12 with little frequency.
h2<-join.freq(h1,9:12)
# new table
plot(h2,col="bisque",xlab="Size")
round(summary(h2),4)
```

[Package

*agricolae*version 1.3-7 Index]