select_meas {childsds} | R Documentation |
Choose one measurement per subject
select_meas(data, subject = "subject", prop = 1, verbose = F)
data |
dataframe as returned by prepare data |
subject |
name of the column containing the subject identifier |
prop |
optional - proportion of measurements to sample |
verbose |
if TRUE information about sample size is printed out |
function samples one measurement per subject, if prop < 1 additional
a prop*100 percent will be sampled from the measurements
the function is called inside do_iterations
and may not called directly
dataframe containing the sampled rows
Mandy Vogel