Once you have created your analysis in the collection, you can edit them at a later stage. 

For your selected collection, all the created analysis appear in the middle pane of the Analysis home page.

To Edit your analysis, Click on the Edit icon that appears when you point your cursor over the analysis name you wish to edit. 

The name of the analysis will become editable. Change the name and click Enter.

The name of the analysis will change accordingly.

You can also edit the name by clicking on the analysis you wish to edit. The analysis will open up with the analysis name mentioned on the top and highlighted. 

Double click on the analysis name to edit it and press Enter. Your analysis name will get changed accordingly.