The geometric mean (GM) and geometric standard deviation (GSD) were calculated to represent summary indicators of the intensity and variation of the magnetic field in each home.

 
  • 吾人計算幾何平均數與幾何標準差來(lái)代表每一個(gè)家戶(hù)內磁場(chǎng)的強度與變異性,并進(jìn)行全體樣本家戶(hù)間磁場(chǎng)強度與變異之描述性統計。
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