View source: R/countrySummary.R

getDirect | R Documentation |

Obtain the Horvitz-Thompson direct estimates and standard errors using delta method for a single survey.

```
getDirect(
births,
years,
regionVar = "region",
timeVar = "time",
clusterVar = "~v001+v002",
ageVar = "age",
weightsVar = "v005",
Ntrials = NULL,
geo.recode = NULL,
national.only = FALSE,
CI = 0.95
)
```

`births` |
A matrix child-month data from |

`years` |
String vector of the year intervals used |

`regionVar` |
Variable name for region in the input births data. |

`timeVar` |
Variable name for the time period indicator in the input births data. |

`clusterVar` |
Variable name for cluster, typically '~v001 + v002' |

`ageVar` |
Variable name for age group. This variable need to be in the form of "a-b" where a and b are both ages in months. For example, "1-11" means age between 1 and 11 months, including both end points. An exception is age less than one month can be represented by "0" or "0-0". |

`weightsVar` |
Variable name for sampling weights, typically 'v005' |

`Ntrials` |
Variable for the total number of person-months if the input data (births) is in the compact form. |

`geo.recode` |
The recode matrix to be used if region name is not consistent across different surveys. See |

`national.only` |
Logical indicator to obtain only the national estimates |

`CI` |
the desired confidence interval to calculate |

a matrix of period-region summary of the Horvitz-Thompson direct estimates by region and time period specified in the argument, the standard errors using delta method for a single survey, the 95% confidence interval, and the logit of the estimates.

Zehang Richard Li, Bryan Martin, Laina Mercer

Li, Z., Hsiao, Y., Godwin, J., Martin, B. D., Wakefield, J., Clark, S. J., & with support from the United Nations Inter-agency Group for Child Mortality Estimation and its technical advisory group. (2019). *Changes in the spatial distribution of the under-five mortality rate: Small-area analysis of 122 DHS surveys in 262 subregions of 35 countries in Africa.* PloS one, 14(1), e0210645.

Mercer, L. D., Wakefield, J., Pantazis, A., Lutambi, A. M., Masanja, H., & Clark, S. (2015). *Space-time smoothing of complex survey data: small area estimation for child mortality.* The annals of applied statistics, 9(4), 1889.

`getDirectList`

```
## Not run:
data(DemoData)
years <- c("85-89", "90-94", "95-99", "00-04", "05-09", "10-14")
mean <- getDirect(births = DemoData[[1]], years = years,
regionVar = "region", timeVar = "time", clusterVar = "~clustid+id",
ageVar = "age", weightsVar = "weights", geo.recode = NULL)
## End(Not run)
```

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