When we write vectors as matrices, we tend to write an $n$-dimensional vector vector as $n \times 1$ column matrix. We emphasize that the gradient vector is defined only for scalar-valued functions. For vector valued functions, we will stick with viewing the derivative as a matrix.
Gloomy Addiction Relapse Statistics. Drug and alcohol rehab statistics show that the percentage of people who will relapse after a period recovery ranges from 50% to 90%. This is a frightening statistic and it is often used as justification for those who wish to carry on with their addiction.
In 92 percent of observation stays, beneficiaries spent at least 1 night (2 calendar days) in. the hospital. As shown in Table 2, in 55 percent of observation stays, beneficiaries spent. 1 night in the hospital; in 26 percent of stays, beneficiaries spent 2 nights; and in.