Supplementary functions {bpAcc} | R Documentation |

## Supplementary fuctions of the package bpAcc.

### Description

Supplementary function required to compute the acceptance probability of a device for BP measurement.

### Usage

```
fsup1(mu, sd.aami, ptolerror)
fsup2(mu.aami, sdev, ptolerror)
toint(xbar, mean, sd, n)
```

### Arguments

`mu` |
True mean error (bias). This is 'mu' of the errors distribution (normal). |

`sd.aami` |
Standard deviation of a normal distribution meeting the ANSI/AAMI-SP10 standards. |

`ptolerror` |
Probability of tolerable error. Default is 0.85. |

`mu.aami` |
Mean of a normal distribution meeting the ANSI/AAMI-SP10 standards. |

`sdev` |
True standard deviation of the errors (normal distribution). |

`xbar` , `mean` , `sd` , `n` |
Auxiliary arguments. |

### Details

Supplementary functions to compute
the *probability of accepting the device D*.
The errors (average of the differences from
three *device* measurements and the three corresponding reference
readings) are by default normally distributed with mean
`mean`

and `sd`

. Function `fsup1`

is called
by `root`

, `fsup2`

is
needed by `rootinv`

, and
`toint`

is required by `psigmaami`

.

See `psigmaami`

for further
details on `ptolerror`

.

### Value

No value returned.
These are funtcion internally called by
`ProbAccept`

.

### Author(s)

Tanvi Chandel, Tet-Chuan Lee, Andrew Lowe, Victor Miranda.

### References

Chandel, T. and Lee, TC. and Lowe, A. and Miranda, V. (2022)
Blood Pressure Device Accuracy Evaluation: Statistical
Considerations with an Implementarion in R,
*Statistical Methods in Medical Research* (under review).

### See Also

### Examples

```
#### 'sd' that meets the AAMI-sp10 standars
root(mu = 5, ptolerror = 0.9)
# root(mu = 11, ptolerror = 0.85) # Error
#### 'mu' that meets the AAMI-sp10 standars
rootinv(sdev = 3, ptolerror = 0.9)
# rootinv(sdev = 2, ptolerror = 0.85) # Error
```

*bpAcc*version 0.0-2 Index]