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rt-test

How can I do paired t-tests in R with multiple variables?

I am wanting to run paired t-tests on multiple variables (left vs right measurements) but am also wanting to then divide it up by sex and do a paired t-test for males to compare to the females. Is this possible?

I am just using this generic code for the t-test:

t.test(EAR_L, EAR_R, mu=0, alt="two.sided", paired=T, conf.level=0.95)
Solution

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    # Run t-test on overall dataset
t.test(EAR_L, EAR_R, mu=0, alt="two.sided", paired=T, conf.level=0.95)

# Subset data by sex
male_data <- subset(data, Sex == "male")
female_data <- subset(data, Sex == "female")

# Run t-test on male subset
t.test(male_data$EAR_L, male_data$EAR_R, mu=0, alt="two.sided", paired=T, conf.level=0.95)

# Run t-test on female subset
t.test(female_data$EAR_L, female_data$EAR_R, mu=0, alt="two.sided", paired=T, conf.level=0.95)