New column to label positive or negative
I have data in column :direction that is either positive, negative, or blank determined by a Lag formula 'in the column. I created a new column :updown where I wanted to look at row of :direction. If it's positive or blank, I want updown for that row to be "Up", otherwise I want it to say "Down". This will simplify data filtering since we just want to split up multi-directional voltage data. //Che
...