moonBook (version 0.1.8)

mytable: Produce table for descriptive statistics

Description

Produce table for descriptive statistics by groups for several variables easily. Depending on the nature of these variables, different descriptive statistical methods were used(t-test, ANOVA,Kruskal-Wallis, chisq, Fisher,...)

Usage

mytable(formula, data, max.ylev = 5, digits = 1, method = 1,
  show.all = FALSE, exact = FALSE, show.total = FALSE)

Arguments

formula

An object of class "formula". Left side of ~ must contain the name of one grouping variable or two grouping variables in an additive way(e.g. sex+group~), and the right side of ~ must have variables in an additive way.

data

A data.frame contains data for analysis

max.ylev

An integer indicating the maximum number of levels of grouping variable ('y'). If a colummn have unique values less than max.ylev it is treated as a categorical variable. Default value is 5.

digits

An integer indicating the number of decimal places (round) or significant digits to be used. Default value is 1.

method

An integer indicating methods for continuous variables. Possible values in methods are

1

forces analysis as normal-distributed

2

forces analysis as continuous non-normal

3

performs a Shapiro-Wilk test to decide between normal or non-normal

Default value is 1.

show.all

A logical value indicating whether or not all statistical values have to be shown in table. Default value is FALSE.

exact

A logical value indicating whether or not permit call with approximate parameter. If true, only exact column name permitted.Default value is FALSE.

show.total

A logical value indicating whether or not show total group value. Default value is FALSE.

Value

An object of class "mytable". 'print' returns a table for descriptive statistics. 'summary' returns a table with all statistical values.

Examples

# NOT RUN {
data(acs)
mytable(Dx~.,data=acs)
mytable(Dx~age+sex+height+weight+TC+TG+HDLC,data=acs,method=3,digits=2)
mytable(am+cyl~.,data=mtcars)
out=mytable(sex~.,data=acs)
out
summary(out)
mylatex(out)

# }