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Epi (version 1.1.7)

A package for statistical analysis in epidemiology.

Description

Functions for demographic and epidemiological analysis in the Lexis diagram, i.e. register and cohort follow-up data, including interval censored data and representation of multistate data. Also some useful functions for tabulation and plotting. Contains some epidemiological datasets.

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Version

Install

install.packages('Epi')

Monthly Downloads

8,038

Version

1.1.7

License

GPL (>= 2)

Maintainer

Bendix Carstensen

Last Published

September 30th, 2009

Functions in Epi (1.1.7)

Function to compute and draw ROC-curves.

Fit an Age-Period-Cohort model to tabular data.

Conversion to diabetes

Draw life lines in a Lexis diagram.

merge.data.frame

Merge data frame with a Lexis object

Compute dates/ages for life lines in a Lexis diagram

Plot the estimates from a fitted Age-Period-Cohort model

Fits a regression model to interval censored data.

Nice breakpoints

Merge a Lexis object with a data frame

A case-control study of endometrial cancer

Create percentages in a table

Compute cumulative sum of estimates.

Calculate floated variances

Thorotrast Study

Produce an empty frame for display of parameter-estimates from Age-Period-Cohort-models.

Draw boxes and arrows for illustration of multistate models.

Population mortality rates for Denmark in 5-years age groups.

Create a Lexis object

hivDK: seroconversion in a cohort of Danish men

Set up an array of NAs, solely from the list of dimnames

Functions to convert character, factor and various date objects into a number, and vice versa.

Mantel-Haenszel analyses of cohort and case-control studies

Function to calculate effects

Function to group a variable in intervals.

Diet and heart data

Create a dataframe suitable for use with the mstate package.

Fit an addive excess risk model to interval censored data.

transform.Lexis

Transform a Lexis objects

Plot estimates with confidence limits

Natural splines - (cubic splines linear beyond outermost knots) with convenient specification of knots and possibility of centering and detrending.

Rates of lung and nasal cancer mortality, and total mortality.

Population risk time in Denmark

Reorder and combine levels of a factor

Male lung cancer incidence in Denmark

Contrast matrices

An unmatched case-control study of leprosy incidence

Extract time band data from a split Lexis object

Fits a multiplicative relative risk model to interval censored data.

The Danish National Diabetes Register.

Births in a London Hospital

Plot a Lexis diagram

Compute confidence limits for a difference of two independent proportions.

Time series methods for Lexis objects

Plot APC-estimates in an APC-frame.

Salmonella Typhimurium outbreak 1996 in Denmark.

Mortality in Denmark 1974 ff.

Bladder cancer mortality in Italian males

Function to calculate effects for individually matched case-control studies

Functions to plot rates from a table classified by age and calendar time (period)

Analysis of a two by two table

Create a data structures suitable for use with packages mstate, etm.

Compute linear functions of parameters with s.e.

Create risk time (Person-Years) in Lexis triangles from population data.

Bereavement in an elderly cohort

Graphical display of a 2-way contingency table

Tables of summary statistics

Population mortality rates for Denmark in 1-year age-classes.

Conditional logistic regression

Cut follow-up at a specified date for each person.

Special functions for use in stat.table

A 1:1 subset of the endometrial cancer case-control study

Fit a floating trend to a factor in generalized linear model

Split follow-up time in a Lexis object

Testis cancer incidence in Denmark, 1943--1996

Population size in Denmark

Functions to facilitate analysis of multistate models.

A Cohort of Nickel Smelters in South Wales

Projection of a model matrix on to the orthogonal complement of a trend.

Functions to manage and explore the workspace

Subsetting Lexis objects

Plot the estimates from a fitted Age-Period-Cohort model

Plot period and cohort effects in an APC-frame.

The time scales of a Lexis object

A small occupational cohort

Generate a nested case-control study

Draw boxes and arrows for illustration of multistate models.

Split follow-up time in cohort studies.

Births in Denmark by year and month of birth and sex

A wrapper for termplot that optionally (but by default) exponentiates terms, and plot them on a common log-scale. Also scales x-axes to the same physical scale.

Simulate a Lexis object representing follow-up in a multistate model.

Generate covariates for drug-exposure follow-up from drug purchase records.