# Basic rules for combining selection boxes

Boxes in a linear sequence = AND logic

When you line up boxes in a single sequence, the data in the Result box (and thus selected for analysis) satisfy all conditions set by the boxes (AND logic).

example Select the samples in the center of the open field (Nest; second box), AND only for subjects with the value of the independent variable Treatment = Injected (Filter; third box).

Boxes in parallel = OR Logic

When you split a sequence in two or more branches which end in the same Result box, the data in the Result box (and thus selected for analysis) satisfy either one condition or another set in those branches. (OR logic).

example Select all samples when the animal was either Moving (Nest, top box) OR Mobile (Nest; bottom).