grandSD: grandSD

In metaDigitise: Extract and Summarise Data from Published Figures

Description

Pooled standard deviation of a set of groups

Usage

grandSD(mean, sd, n, equal = FALSE)

Arguments

mean	Mean
sd	standard deviation
n	Sample size
equal	Logical: Whether to calculate pooled SD assuming groups have the same means (TRUE) or different means (FALSE)

Value

Returns vector of pooled mean

Author(s)

Joel Pick

Examples

grandSD(mean = 10, sd = 3, n = 40)

Example output

[1] 3

metaDigitise documentation built on March 13, 2020, 9:09 a.m.