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Official Journal of the Japan Wood Research Society

Table 2 Statistics of test results

From: Sensitivity of censored data analysis to determine the characteristic value of structural timber

 Ratio of censored dataSubtractionStatisticsWithout censored data analysisWith censored data analysis
MLEaOrder statisticsCMLEb (All)CMLE (30%)KM methodc
Ideal datasets0%Averaged48.647.6
Mine42.042.0
Maxf55.353.2
Censored datasets10%5 MPaAverage48.247.149.548.547.2
Min41.638.642.741.643.2
Max54.853.255.654.353.1
10 MPaAverage47.546.749.548.447.1
Min41.138.242.841.643.1
Max54.152.855.654.253.1
15 MPaAverage46.845.649.548.447.0
Min40.438.242.841.543.0
Max53.351.955.554.253.1
20%5 MPaAverage47.546.451.048.548.6
Min41.342.043.742.143.3
Max54.151.758.055.356.6
10 MPaAverage46.245.951.048.348.5
Min40.241.844.141.943.3
Max52.651.458.055.256.6
15 MPaAverage44.545.050.848.248.5
Min38.437.444.341.843.3
Max50.750.457.855.156.7
30%5 MPaAverage47.346.652.249.149.9
Min40.537.246.343.945.2
Max53.951.958.454.557.5
10 MPaAverage45.645.352.448.949.8
Min38.733.346.943.745.2
Max52.051.058.654.357.5
15 MPaAverage43.643.152.448.749.7
Min36.529.347.443.345.2
Max49.749.358.554.156.7
40%5 MPaAverage46.946.354.650.651.9
Min39.537.647.544.145.7
Max53.652.760.156.259.5
10 MPaAverage44.744.054.950.351.9
Min36.634.948.243.845.7
Max51.451.460.655.959.3
15 MPaAverage41.541.554.550.152.0
Min33.029.948.643.445.7
Max44.950.158.255.659.2
  1. aMaximum likelihood estimation
  2. bCensored maximum likelihood estimation
  3. cKaplan–Meier method
  4. dAverage value of 10 ideal or censored datasets
  5. eMinimum value of 10 ideal or censored datasets
  6. fMaximum value of 10 ideal or censored datasets