writeAOV: Export ezANOVA results to an csv file

In Cogitos/statxp: Filter data, format and export statistical results

Description

A function to export an ezANOVA (package "ez") object to a csv file. The function exports the classic ANOVA table as well as the Mauchly/Levene test and the appropriated corrections. Optionally, the function can export the descriptive statistics as well ad the related posthoc analyses.

Usage

writeAOV(fname, anova, data = NULL, posthoc = NULL)

Arguments

fname	A string indicating the file name (and the relative path to it).
anova	An ezANOVA object.
data	A data frame of descriptive statistics (mean, sd, se...). Defaults to NULL.
posthoc	A data frame of posthoc results such as those done by the pairwise.t.test function.

Author(s)

Guillaume T. Vallet [e-mail], University of de Montreal (Canada);

Examples

# Generate fake data with a subject number in the first colum, a
#  fake experimental condition in the second column and fake
#  reaction times in the third column
df = rbind(data.frame(Subj=1:10,  Cond="Control", RT=rnorm(10, mean=720, sd=59)),
           data.frame(Subj=11:20, Cond="Test", RT=rnorm(10, mean=680, sd=45)),
           data.frame(Subj=21:30, Cond="Test2", RT=rnorm(10, mean=650, sd=49)))
# Convert subject and independant variable to factors
df$Subj = as.factor(df$Subj)
df$Cond = as.factor(df$Cond)

# Compute the ANOVA 
anova = ezANOVA(df, wid=.(Subj), between=.(Cond), dv=RT)
# Compute descriptive statistics       
dstats = ezStats(df, wid=.(Subj), between=.(Cond), dv=RT)
# Compute posthoc analysis
posthoc = pairwise.t.test(df$RT, df$Cond, paired=F)

# Export the ANOVA as a csv file
writeAOV('test.csv', anova, data=dstats, posthoc=posthoc)
          

Cogitos/statxp documentation built on March 22, 2021, 6:38 a.m.