Using level of detail (LOD) variables in calculations

- [Instructor] Level of detail expressions…are a valuable tool for analyzing data…because they allow us to work with the data…other than at the view level.…We're going to do some basic level of detail expressions,…or LOD expressions,…really to just introduce…and also help further our dashboard.…Really to try and understand…the importance of LOD expressions,…I've added a new sheet…called Increase in Education Spending.…Really what I was thinking was to help understand…the potential growth for online learning.…One of the other elements we need to look at is education.…

And I thought something that would be very interesting…was how countries have increased their spending on education…based on their percentage of GDP.…So this is using our secondary UN data source…and really in this view…what I want to do is calculate the first year,…and, for Argentina, that's 2005,…against the last year of data,…so in this case 2013 for Argentina.…And just see do we see some countries…that really increased their spending?…And so, would that factor in…