The-Glance-GUI.md

@@ -39,6 +39,15 @@ The file path, an automatically loaded variable, the data shape, the variable at
 
 Note: You will probably need to scroll to see all the variable attributes in the table. If you resize the entire GUI window the table will also become proportionally larger.
 
+**To configure comparisons:**
+* when you want to compare two files, set the epsilon and epsilon percent to be used with comparison
+
+epsilon is the acceptable amount of difference between your two data sets expressed as a fixed number. This can be either a number or "None" (without the quotes) if you do not want to apply an epsilon to your comparison. 
+
+epsilon percent is the acceptable amount of difference between your two data sets expressed as a percentage of the values in File A. You will probably want to set this to "None" unless you have a good reason to want this specific measure. 
+
+![epsilons](uploads/0d73a7ecc4535d867031507055b1733a/epsilons.png)
+
 **If you need to override the fill value:**
 * check the "override fill value" checkbox
 * type in the fill value you want to use
@@ -47,7 +56,7 @@ Note: The fill value can be a number or "None" (without the quotes). If you set
 
 If you uncheck the "override fill value" checkbox Glance will go back to using the fill value it automatically detected.
 
-![Screen_Shot_2021-10-05_at_9.50.45_AM](uploads/aae42f3d0b8a566e0e75cefd635014eb/Screen_Shot_2021-10-05_at_9.50.45_AM.png)
+![override-fillvalue](uploads/c14aa35cf0bd597c43ef79fc4faee17a/override-fillvalue.png)
 
 **To load a different variable:**
 * use the dropdown control to the right of "variable name:" to select the variable you want to load