life {cNORM} | R Documentation

## Life expectancy at birth from 1960 to 2017

### Description

The data is available by the courtesy of the World Bank under Creative Commons Attribution 4.0 (CC-BY 4.0). It includes the life expectancy at birth on nation level from 1960 to 2017. The data has been converted to long data format, aggregates for groups of nations and missings have been deleted and a grouping variable with a broader scope spanning 4 years each has been added. It shows, that it can be better to reduce predictors. The model does not converge anymore after using 8 predictors and the optimal solution is achieved with four predictors, equaling R2=.9825.

### Usage

    life

### Format

A data frame with 11182 rows and 4 variables:

Country

  The name of the country

year

  reference year of data collection

life

  the life expectancy at birth

group

  a grouping variable based on 'year' but with a lower resolution; spans intervals of 4 years each

A data frame with 11182 rows and 4 columns

### Source

https://data.worldbank.org/indicator/sp.dyn.le00.in

### References

The World Bank (2018). Life expectancy at birth, total (years). Data Source World Development Indicators available https://data.worldbank.org/indicator/sp.dyn.le00.in (date of retrieval: 01/09/2018)

### Examples

    ## Not run:
    # data preparation
    data.life <- rankByGroup(life, raw="life")
    data.life <- computePowers(data.life, age="year")

    #determining best suiting model by plotting series
    model.life <- bestModel(data.life, raw="life")
    plotPercentileSeries(data.life, model.life, end=10)

    # model with four predictors seems to work best
    model2.life <- bestModel(data.life, raw="life", terms=4)

    ## End(Not run)

[Package cNORM version 2.0.3 Index]