DiffBetaSandwich {betaSandwich} | R Documentation |

## Estimate Differences of Standardized Slopes and the Corresponding Sampling Covariance Matrix

### Description

Estimate Differences of Standardized Slopes and the Corresponding Sampling Covariance Matrix

### Usage

```
DiffBetaSandwich(object, alpha = c(0.05, 0.01, 0.001))
```

### Arguments

`object` |
Object of class |

`alpha` |
Numeric vector.
Significance level |

### Value

Returns an object of class `diffbetasandwich`

which is a list with the following elements:

- call
Function call.

- fit
The argument

`object`

.- args
Function arguments.

- vcov
Sampling covariance matrix of differences of standardized slopes.

- est
Vector of differences of standardized slopes.

### Author(s)

Ivan Jacob Agaloos Pesigan

### See Also

Other Beta Sandwich Functions:
`BetaADF()`

,
`BetaHC()`

,
`BetaN()`

,
`RSqBetaSandwich()`

### Examples

```
object <- lm(QUALITY ~ NARTIC + PCTGRT + PCTSUPP, data = nas1982)
std <- BetaHC(object)
diff <- DiffBetaSandwich(std)
# Methods -------------------------------------------------------
print(diff)
summary(diff)
coef(diff)
vcov(diff)
confint(diff, level = 0.95)
```

[Package

*betaSandwich*version 1.0.7 Index]