tibble code snippets in r

convert a tibble to an xts using the `date` column of the tibble as the xts index in r

reverse the order of a column of a tibble using tidyverese in r

to this tibble `csmib_lag1` add the column `date` from this tibble `csmib` as a date index, hence it should be the first column of `csmib_lag1` in r