when do you leave censored data on a bridge which years of the bridges have been left truncated how long can bridge lifetime be calculated when is each bridge considered deficient what is left truncated r what year was the bridge first classified as being deficient when is censoring left truncated when does deficiency occur when is r bridge censored when does the lifetime of a r bridge end when was censored bridge first collapsed when is it possible that a bridge became deficient how do you use censoring in r when did the censoring occur in the bridges when are bridges classified as deficient in r when is censoring in r which years was the first time a bridge was left truncated when did the deficient bridge start when do bridges become deficient in r when are bridges classified as deficient