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2.16 BEPAS Summarize by group
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MVPAbyWalkability <- BEPAS %>%
filter (!is.na(MVPA_acc) ) %>% #the filter is used to remove subject with missing cases. We calculated the number of missing values for MVPA_acc before, this number should be reported.
group_by(Walkability) %>%
summarize (n=n(),
median=median(MVPA_acc),
percentile25=quantile(MVPA_acc, 0.25))
MVPAbyWalkability
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