Specifying a range in the lookback

[jeremysze]

My panel data is not fully balanced and I wanted to select controls in the lookback between 1 to 6 months. So I was trying to specify a range in the look back and the reduce_data function appears to work. However, I was wondering if this is a functionality that was designed into your function?

reduced_data <- reduce_data(data = rem_data, treat = "treat",
                            tm = "BMI_time", entry = "entry_m_time",
                            id = "newid", lookback = c(1:6))

The function worked but I have this warning:

Warning message in if ((lookback == floor(lookback)) == FALSE) {:
"the condition has length > 1 and only the first element will be used"