The effects on the outcome of the change in one factor may depend on the level of the other factor, so we need to consider the interactions between two factors. Two way ANOVA is an appropriate method to analyze the main effects of and interactions between two factors. Minimum Origin Version Required: Origin 2016 SR0.
Nosing â An edge part of the tread that protrudes over the riser beneath. If it is present, this means that, measured horizontally, the total ârunâ length of the stairs is not simply the sum of the tread lengths, as the treads actually overlap each other slightly.
Measure two inches inward from the outside edge of each stair tread edge. Make a light pencil mark. Then measure two inches inward from the front edge of each tread and make a second pencil mark aligned with the first. Position the new iron railing onto the staircase. Align the front and side edges of each mounting bracket with the pencil marks on each stair tread. Place a pencil mark through each mount hole. Lift the railing off of the stairs and set it aside.