report_meanSd: Report table of means ± sd

In angeloSdP/reportingTools: Tools for building report tables containing overall and per group summary statistics

Report table of means ± sd

Description

report_meanSd builds a table with the overall means ± standard deviations of one or more variables. A grouping variable can also be specified, in which case mean±sd are also calculated for each group and the p-value of an anova test is displayed to decide if there are significant differences between the means of the different groups.

Usage

report_meanSd(
  data,
  summary_vars,
  groupVar = NULL,
  digits = 2,
  pvdigits = 4,
  na.rm = TRUE
)

Arguments

data	data frame or tibble which contains the data.
summary_vars	Variable or variables whose mean ± sd is to be calculated.
groupVar	Grouping variable.
digits	Number of decimal digits for the results.
pvdigits	Number of decimal digits for the p-value of anova test.
na.rm	Should NA values be removed (possible values are TRUE or FALSE)

Value

A table with the overall mean±sd of the variables and, if a grouping variable is specified, the means±sd by group and the p-value for comparing the means of the groups, by using t-test when there are two groups (maybe with different variances), and anova test when there are more than two groups (equal variances is assumed).

Examples

df <- data.frame(x=rnorm(100,10,3),y=rnorm(100,50,8), z=runif(100,20,30),g=sample(c("Yes","No"),100,replace=TRUE))
df %>%
report_meanSd(c(x,y,z))  # Only overall means and sd of variables x, y and z
df %>%
report_meanSd(c(x,y,z), groupVar=g, digits=1)

angeloSdP/reportingTools documentation built on Dec. 25, 2024, 11:19 a.m.