Smooth population counts in 5-year age groups.

smooth_age_5_kkn(Value, Age, OAG = TRUE, start_on = 0)

Value | numeric vector of counts in single, abridged, or 5-year age groups. |
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Age | numeric vector of ages corresponding to the lower integer bound of the counts. |

OAG | logical. Whether or not the top age group is open. Default |

start_on | integer. Either 0 or 5. Do we constrain decades starting on the 0s or 5s? |

numeric vector of smoothed counts in 5-year age groups.

This method does not account for ages < 10 nor for the 10 year age interval prior to the open age group. These are returned imputed with `NA`

. Age classes must be cleanly groupable to 5-year age groups. Smoothed counts are constrained to sum to original totals in 10-year age groups.

Carrier NH, Farrag AM (1959).
“The reduction of errors in census populations for statistically underdeveloped countries.”
*Population Studies*, **12**(3), 240--285.

Ages <- seq(0, 80, by = 5) KKNtest <- c(NA,NA,354871,278502,285508,261429,236513 , 204233,162138,126555,90094,65988,54803,41041,NA,NA,NA) KKNmales <- smooth_age_5_kkn(pop5m_pasex, Ages, TRUE) all(round(KKNmales) - KKNtest == 0, na.rm = TRUE)#> [1] TRUE