请教关于峰值的选取

nsin

我在使用origin的绘图,并选取多个峰值(Pick peaks)的过程中,遇到了两个选项The Search Rectangle Group,The Minimum Height Text Box
将它们的值取的越小，就能得到越多峰值.但不理解是怎么回事.请教高手它们分别指的是什么?

suffer

The Search Rectangle Group

The method for peak picking uses a moving rectangle.  If a peak is to be found inside a rectangle, the difference in height between the local data maximum inside the rectangle and the data values at both rectangle ends has to be no less than the rectangle height.  The height of the rectangle is the percentage, as specified in the Height text box, of the total amplitude of the data in the range (the amplitude is defined as the difference between the maximum and the minimum of the data).  The width of the rectangle is the percentage, as specified in the Width text box, of the total number of points in the data range.

Generally, the smaller the Height and the Width text box values, the more peaks are likely to be found.  The width should not be too small, however, since the rectangle must include at least a few points.

The Minimum Height Text Box

The minimum height is the percentage, as specified in the Minimum Height text box, of the total amplitude of the data in the range, that the peak must have, as determined relative to the minimum of the data.  The smaller the Minimum Height text box value, the more peaks are likely to be found.

nsin

ORIGIN里面的帮助啊
我就是英文烂,没有怎么看明白,高手能用汉语解释一下吗?

lz1736

这是一个利用移动的矩形框来选取最大值的方法。如果在矩形里面找到一个峰值，那么在矩形里面最大数据值与在矩形两边上的数据值在高度上的差值正好是矩形的高度。矩形框的高度是这一范围内全振幅的百分比，（振幅定义为最大数据值和最小数据值的差值）矩形框的宽度是这一数值范围内全部数值点的百分比。
总的来说，高度值和宽度值越小，越容易发现峰值。但是宽度值不能太小，因为这个矩形框必须包含足够的数值点。
最小高度是在这个范围内数据全振幅的百分比，相对于指定的最小数据值，一定有峰值存在。最小高度值越小，越容易发现更多的峰值。