a line graph

For example, a graph of IQs of everyone in your kindergarten class should be a series of unrelated points, not a line graph.

例如，一张有关幼儿园所有班级儿童的IQ图表，那就应该是一系列不相关的点，而不是一个线性图表。

I'm looking for a code to create a button which upon clicking will change the pivot table chart from a bar chart to a line graph.

我在找一个代码来创建一个按钮，点击后将改变数据透视表图表从条形图，线图。

For example, think of a stock tracker gadget that renders a line graph showing you the hour-by-hour stock value for a given company.

例如，可以考虑一个呈现线图的股票跟踪系统Gadget，它向您显示给定公司每小时的股票价值。