The simplest answer is to just make a | table val1 val2 . Then switch to the Visualization tab and select a visualization like Line Chart , where your table will be graphed with val1 on the x axis, and val2 on the y axis.
If you wish to graph more than 2 values, add them to your table also. Columns 2 and beyond will be graphed as separate series against the first column. This behavior is much like you'd expect making a line chart in excel.
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