Cobweb diagrams are also called spider diagrams， star diagrams， network diagrams， radar diagrams ， irregular polygons， polar diagrams or Kiviat diagrams. As the name suggests， the spider graph is a graphical method of displaying multivariate data in the form of a two-dimensional chart of three or more quantitative variables on an axis starting from the same point. The relative positions and angles of the shafts are usually uninformed. It is equivalent to a parallel coordinate diagram， with the axes arranged radially.
大家在科研和写论文的过程中一定遇到过这样的问题，想要描述两个变量对实验结果的影响规律，你是否还在用两条曲线或是柱状图描述呢?那么，今天小编教大家如何利用Origin绘制热图，描述2个变量综合作用对于实验结果的影响。
Name the first column: Time. The second column is named Signal 1. The third column is named Signal 2.
