在MATLAB的Bioinformtics工具包内，提供了多维缺失数据的插补命令，使用Nearest Neighbour算法。将缺失的数据用NaN表示，然后将含有缺失数据的矩阵作为参数传给knnimpute命令，得到插补之后的数据。
具体命令介绍如下：
knnimpute(Data) replaces NaNs in Data with the corresponding value from the nearest-neighbor column. The nearest-neighbor column is the closest column in Euclidean distance. If the corresponding value from the nearest-neighbor column is also NaN, the next nearest column is used.
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