Simplifying summary statistic output stratified by a categorical variable in R -
program being used
i using statistical program r analyze data , have simple question.
background problem
i have variable full of numeric values called study_data$ln_reviewed
. have variable called study_data$gender
has sex of each subject in study. compute simple summary statistics stratified gender. easy using code shown below:
> by(study_data$ln_reviewed, study_data$gender, summary) study_data$gender: female min. 1st qu. median mean 3rd qu. max.
2.00 13.00 19.00 27.77 35.50 125.00
study_data$gender: male min. 1st qu. median mean 3rd qu. max. 1.00 12.00 19.00 26.98 34.00 122.00
my question
how can r display information in easier digest format? specifically, table has 2 rows, entitled "female" , "male", , 6 columns, entitled "min.", "1st qu.", "median", "mean", "3rd qu.", , "max.", shown below.
min. 1st qu. median mean 3rd qu. max. female 2.00 13.00 19.00 27.77 35.50 125.00 male 1.00 12.00 19.00 26.98 34.00 122.00
i have spent time trying solve on own , have been unable find solution.
do.call(rbind , by(study_data$ln_reviewed, study_data$gender, summary))
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