DM script for EELS background removal based on subspace division

This is a simple demonstration code of the EELS background subtraction algorithm based on subspace division in Gatan’s Digital Micrograph (TM) scripting language.本代码为基于子空间划分的电子能量损失谱（Electron Energy-Loss Spectroscopy, EELS）背景扣除算法在Gatan公司Digital Micrograph (TM)脚本语言中的简易演示代码。