This function will sum all values in field 171, but it will only include entries that are displayed in your View. If some entries are excluded due to a filter, it will not include those entries. Just put [sum_x] in your View's Before Content. Replace x with the ID of the field you would like to sum. You must also replace x in the code below with this field ID.

Move the legend above the graph.

In order to use checkboxes in a search form, custom code is needed to separate each checked box and search for them individually instead of as a single string. For example, if I had a search form with boxes for 'red', 'blue', and 'yellow', I don’t want it to search for 'red, blue'. Replace 205 with the ID of your View. Replace 82, 83, and 84 with either a single field ID for the field in your View filter or multiple, comma-separated field IDs if you have multiple fields in your View filters that need this code.