gusucode.com > demos工具箱matlab源码程序 > demos/meanArrivalDelayMapper.m
function meanArrivalDelayMapper (data, info, intermKVStore) % Mapper function for the MeanMapReduceExample. % Copyright 2014 The MathWorks, Inc. % Data is an n-by-1 table of the ArrDelay. Remove missing value first: data(isnan(data.ArrDelay),:) = []; % Record the partial counts and sums and the reducer will accumulate them. partCountSum = [length(data.ArrDelay), sum(data.ArrDelay)]; add(intermKVStore, 'PartialCountSumDelay',partCountSum);