(Note that the positions of ticks within the X range don’t matter.) As in Fig. In contrast to the freedom in scale of two X axes in the range-independent construction, the “ functionally mapped double-X” graph has two X axes where the ranges (i.e., values of From and To) at bottom and top X’s are mutually constrained by a mathematical formula. Model of the functionally mapped double-X. Note: Although there is an additional “ Create Double X Plot” button in this toolbar, the graph created by this button presents two separate plots of the same Y data on mutually independent two X axes.įig.3. To make a range-independent double-X graph, the easiest way is to use the tools in the Double-Y Toolbar, which can be downloaded and installed from our File Exchange site:īy using the “ XYXY Plot” button in this toolbar, you can easily make a range-independent double-X graph (with double-Y). The main purpose of this type of graph is to show two independent curves in a single graph. The read-out of X2 value of a data point in the first layer’s curve is generally meaningless because X2 scale is independent from X1’s. Let’s call such graph as “ range-independent double-X“.įig.2 Sample of the range-independent double-X.
When the frames of two layers are identical in both size and location, you can show the second layer’s X axis as the top X (and Y axis as the right Y). In a multi-layer graph in Origin, each layer has own independent X (and Y) axis scale from the other layers. Readers can download and modify the samples in this page for their own use.įig.1. In this article, we will introduce three types of double-X graph, and briefly explain how to make them. However, they often actually meant differently from each other in what was really envisioned. Occasionally people asked us how to create a “double-X graph” in Origin.
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