Package 'epiCo'

Title: Statistical and Viz Tools for Vector-Borne Diseases in Colombia
Description: Provides statistical and visualization tools for the analysis of demographic indicators, and spatio-temporal behavior and characterization of outbreaks of vector-borne diseases (VBDs) in Colombia. It implements travel times estimated in Bravo-Vega C., Santos-Vega M., & Cordovez J.M. (2022), and the endemic channel method (Bortman, M. (1999) <https://iris.paho.org/handle/10665.2/8562>).
Authors: Juan D. Umaña [aut, cre, cph] , Juan Montenegro-Torres [aut] , Julian Otero [aut] , Hugo Gruson [ctb]
Maintainer: Juan D. Umaña <[email protected]>
License: MIT + file LICENSE
Version: 1.0.0
Built: 2024-09-27 06:19:32 UTC
Source: CRAN

Help Index


Returns the specific rates associated with being infected given age and sex

Description

Function that returns the specific rates of being infected given age and sex

Usage

age_risk(
  age,
  population_pyramid,
  sex = NULL,
  plot = FALSE,
  language = c("EN", "ES")
)

Arguments

age

A vector with the ages of cases in years from 0 to 100 years

population_pyramid

A dataframe with the count of individuals with the columns age, population and sex

sex

A vector with the sex of cases 'F' and 'M'. The default value is NULL

plot

A boolean for displaying a plot. The default value is FALSE

language

Language for plot components

Value

A dataframe with the proportion or total count of individuals

Examples

pop_pyramid <- population_pyramid("15001", 2015,
  sex = TRUE, total = TRUE,
  plot = FALSE
)
ages <- round(runif(150, 0, 100))
sex <- c(rep("M", 70), rep("F", 80))
age_risk(
  age = ages, sex = sex, population_pyramid = pop_pyramid,
  plot = TRUE
)

Provides the sociological description of ethnicities in Colombia

Description

Function that returns the description of the consulted ethnicities

Usage

describe_ethnicity(ethnic_codes, language = c("EN", "ES"))

Arguments

ethnic_codes

A numeric vector with the codes of ethnicities to consult

language

"ES" for description in Spanish "EN" for English. The default value is EN

Value

A printed message with ethnicities descriptions

Examples

describe_ethnicity(round(runif(n = 150, min = 1, max = 4)))

Get ISCO-88 occupation labels from codes

Description

Function that translates a vector of ISCO-88 occupation codes into a vector of labels

Usage

describe_occupation(isco_codes, sex = NULL, plot = NULL)

Arguments

isco_codes

A numeric vector of ISCO-88 occupation codes (major, submajor, minor, or unit)

sex

A vector with the respective sex for isco_codes vector. The default value is NULL

plot

A type of plot between treemap and circular packing. The default value is NULL

Value

A string vector of ISCO-88 labels

Examples

demog_data <- data.frame(
  occupation_label =
    c(6111, 3221, 5113, 5133, 6111, 23, 25),
  sex = c("F", "M", "F", "F", "M", "M", "F")
)
describe_occupation(
  isco_codes = demog_data$occupation_label,
  sex = demog_data$sex, plot = "treemap"
)

divipola_table

Description

Political and administrative distribution of Colombia's municipalities

Usage

data(divipola_table)

Format

An object of class data.frame with 1121 rows and 8 columns.

Details

DIVIPOLA table


Create and return the endemic channel of a disease from an incidence object

Description

Function that builds the endemic channel of a disease time series based on the selected method and windows of observation

Usage

endemic_channel(
  incidence_historic,
  observations = NULL,
  method = c("geometric", "median", "mean", "unusual_behavior"),
  geometric_method = "shifted",
  outlier_years = NULL,
  outliers_handling = c("ignored", "included", "replaced_by_median", "replaced_by_mean",
    "replaced_by_geometric_mean"),
  ci = 0.95,
  plot = FALSE,
  language = c("EN", "ES")
)

Arguments

incidence_historic

An incidence object with the historic weekly observations

observations

A numeric vector with the current observations

method

A string with the mean calculation method of preference (median, mean, or geometric) or to use the unusual behavior method (Poisson Distribution Test for Hypoendemic settings)

geometric_method

A string with the selected method for geometric mean calculation; see: geometric_mean

outlier_years

A numeric vector with the outlier years

outliers_handling

A string with the handling decision regarding outlier years, see: outliers_handling function

ci

= 0.95 A numeric value to specify the confidence interval to use with the geometric method

plot

A boolean for displaying a plot

language

Language for plot components

Value

A dataframe with the observation, historical mean, and confidence intervals (or risk areas)

Examples

data_event <- epiCo::epi_data
data_ibague <- data_event[data_event$cod_mun_o == 73001, ]
incidence_historic <- incidence::incidence(data_ibague$fec_not,
  interval = "1 epiweek"
)
endemic_channel(incidence_historic,
  method = "geometric", plot = TRUE
)

Get the epidemiological calendar of a consulted year.

Description

Function that returns the starting date of the epidemiological weeks in a year of interest.

Usage

epi_calendar(year, jan_days = 4)

Arguments

year

A numeric value for the year of interest.

jan_days

Number of January days that the first epidemiological week must contains.

Value

A character array with the starting dates of the epidemiological weeks of the given year.

Examples

epi_calendar(2016)

epi_data

Description

Epidemiological data for the Tolima department for the years 2012 to 2022

Usage

data(epi_data)

Format

An object of class tbl_df (inherits from tbl, data.frame) with 66747 rows and 16 columns.

Details

Epidemiological data


Returns the geometric mean of a vector of real numbers.

Description

Function that returns the geometric mean of a vector of real numbers according to the selected method.

Usage

geometric_mean(
  x,
  method = c("positive", "shifted", "optimized", "weighted"),
  shift = 1,
  epsilon = 0.001
)

Arguments

x

A numeric vector of real values

method

Description of methods:

  • positive = only positive values within x are used in the calculation.

  • shifted = positive and zero values within x are used by adding a shift value before the calculation and subtracting it to the final result.

  • optimized = optimized shifted method. See: De La Cruz, R., & Kreft, J. U. (2018). Geometric mean extension for data sets with zeros. arXiv preprint arXiv:1806.06403.

  • weighted = a probability weighted calculation of gm for negative, positive, and zero values. See: Habib, E. A. (2012). Geometric mean for negative and zero values. International Journal of Research and Reviews in Applied Sciences, 11(3), 419-432.

shift

= 1 (default) a positive value to use in the shifted method

epsilon

= 1e-5 (default) the minimum positive value to consider in the optimized method.

Value

The geometric mean of the x vector, and the epsilon value if optimized method is used.

Examples

x <- c(4, 5, 3, 7, 8)
geometric_mean(x, method = "optimized")

Returns the geometric standard deviation of a vector of real numbers.

Description

Function that returns the geometric standard deviation of a vector of real numbers according to the selected method.

Usage

geometric_sd(
  x,
  method = c("positive", "shifted", "optimized", "weighted"),
  shift = 1,
  delta = 0.001
)

Arguments

x

A numeric vector of real values

method

Description of methods:

  • positive = only positive values within x are used in the calculation.

  • shifted = positive and zero values within x are used by adding a shift value before the calculation and subtracting it to the final result.

  • optimized = optimized shifted method. See: De La Cruz, R., & Kreft, J. U. (2018). Geometric mean extension for data sets with zeros. arXiv preprint arXiv:1806.06403.

  • weighted = a probability weighted calculation of gm for negative, positive, and zero values. See: Habib, E. A. (2012). Geometric mean for negative and zero values. International Journal of Research and Reviews in Applied Sciences, 11(3), 419-432.

shift

a positive value to use in the shifted method

delta

an positive value (shift) used in the optimized method.

Value

The geometric mean of the x vector, and the epsilon value if optimized method is used.

Examples

x <- c(4, 5, 3, 7, 8)
geometric_sd(x, method = "optimized")

Extends an incidence class object with incidence rates estimations.

Description

Function that estimates incidence rates from a incidence class object and population projections.

Usage

incidence_rate(incidence_object, level, scale = 1e+05)

Arguments

incidence_object

An incidence object.

level

Administration level at which incidence counts are grouped (0 = national, 1 = state/department, 2 = city/municipality).

scale

Scale to consider when calculating the incidence_rate.

Value

A modified incidence object where counts are normalized with the population.

Examples

data_event <- epiCo::epi_data
incidence_historic <- incidence::incidence(data_event$fec_not,
  groups = data_event$cod_mun_o,
  interval = "1 year"
)
incidence_object <- subset(incidence_historic,
  from = "2015-01-04",
  to = "2018-12-27"
)
inc_rate <- incidence_rate(incidence_object, level = 2, scale = 100000)
inc_rate$rates

isco88_table

Description

ISCO88 description of occupations

Usage

data(isco88_table)

Format

An object of class data.frame with 390 rows and 8 columns.

Details

ISCO88 occupation table


Calculate spatial correlation of given municipalities in an incidence_rate object.

Description

Function to calculate spatial autocorrelation via Moran's Index from a given incidence_rate object grouped by municipality.

Usage

morans_index(
  incidence_object,
  scale = 1e+05,
  threshold = 2,
  plot = TRUE,
  language = c("EN", "ES")
)

Arguments

incidence_object

An incidence object with one observation for the different locations (groups).

scale

Scale to consider when calculating the incidence_rate.

threshold

Maximum traveling time around each municipality.

plot

if TRUE, returns a plot of influential observations in the Moran's plot.

language

Language for plot components

Value

List of Moran's I clustering analysis, giving the quadrant of each observation, influential values.

Examples

data_event <- epiCo::epi_data
incidence_historic <- incidence::incidence(data_event$fec_not,
  groups = data_event$cod_mun_o,
  interval = "4 year"
)
incidence_object <- subset(incidence_historic,
  from = "2015-01-04",
  to = "2018-12-27"
)
morans_index(incidence_object, scale = 100000, threshold = 2, plot = TRUE)

Neighborhoods from real travel distances in Colombia

Description

Function to build neighborhoods from real travel distances inside Colombia by land or river transportation.

Usage

neighborhoods(query_vector, threshold = 2)

Arguments

query_vector

Codes of the municipalities to consider for the neighborhoods.

threshold

Maximum traveling time around each municipality.

Value

neighborhood object according to the introduced threshold.

Examples

query_vector <- c("05001", "05002", "05004", "05021", "05030", "05615")
neighborhoods(query_vector, 2)

Returns the population pyramid of the consulted region

Description

Function that returns the population pyramid of the municipality or department of a specific year

Usage

population_pyramid(
  divipola_code,
  year,
  sex = TRUE,
  range = 5,
  total = TRUE,
  plot = FALSE,
  language = c("EN", "ES")
)

Arguments

divipola_code

A code from the divipola table representing a department or municipality. To obtain values at the national level, code '0' is used

year

A numeric input for the year of interest

sex

A boolean to consult data disaggregated by sex. The default value is TRUE

range

A numeric value from 1 to 100 for the age range to use. The default value is 5

total

A boolean for returning the total number rather than the proportion of the country's population. The default value is TRUE

plot

A boolean for displaying a plot. The default value is TRUE

language

Language for plot components

Value

A dataframe with the proportion or total count of individuals

Examples

population_pyramid("15001", 2015, sex = TRUE, total = TRUE, plot = TRUE)