The first (and most important) task is to calculate the scaling factor for the graph. This is simply how many pixels in height each value will be worth when it is plotted.

第一项任务(也是最重要的任务)是计算图形的比例因子，就是说在绘图时每单位的值在高度上要占用多少像素。

youdao

The first (and most important) task is to calculate the scaling factor for the graph. This is simply how many pixels in height each value will be worth when it is plotted.

第一项任务（也是最重要的任务）是计算图形的 比例因子，就是说在绘图时每单位的值在高度上要占用多少像素。

youdao

So each value is plotted at 20-pixel intervals, hence working through the array.

因此，两个值以20像素的间距绘制，全部数组的计算结果为。

youdao

That done, they plotted a series of curves, one for each decade, that showed how frequently each deviant value occurred.

ECONOMIST: Climate change