Reductions in JuliaDB

At times, it might be useful to express a single column in a table as a single value, such as adding all the values in that column or calculating the mean or variance of the values in that column. This can be achieved using the reduce() function. For a full course in Julia, have a look at my Coursera Massive Open Online Course (MOOC) https://www.coursera.org/learn/julia-...