Hello! I work with research and it's really common to find datasets with a huge number of columns (+3000). When we started to work with Tableau, they told us to use data in column (i.e., we would have 3 columns, 1 to identify the person, other to identify the variable and the the third to identify the value, each line would be a value). As a PowerBi user, I always used the common dataset model (each line would be a person, each column a variable with its value), and would like to know it, in this case (in which I find so many columns to present variables) the best solution to present data really would be the columns presented before or a "normal" model would be ok. And, if the best solution really is the column model, would I use dax or similar solutions to create small dataset in the "normal" way to present them in my graphs? Or would you suggest another solution? Thanks a lot!
