Select one or more Y columns or a range of data from at least one Y column. If there is an associated X column, X column supplies X values; otherwise, sampling interval of the Y column or row number is used.
Select required data.
From the menu, select Plot > 2D : Line: Vertical Step.
Click the Vertical Step button on the 2D Graphs toolbar.
LINE.OTP (installed to the Origin program folder).
Each data point in the data plot is connected by a line. The line connection type is set to a step vertical connection (Step Vert) on the Line tab of the Plot Details dialog box (Format: Plot). The step vertical connection creates a right angle connection between data points, with an initial vertical line. The data points are not displayed.