The computed average for all condition parameters for zones 1 to 2 were used in the transition matrix for training and testing purposes, meanwhile the computed data for zones 3, 4 and 5 were used as validation to the predicted individual condition parameter data obtained from MM algorithm.
The comparison between predicted and computed individual condition parameter data throughout the sampling period are plotted in
Figure 4,
Figure 5 and
Figure 6 respectively. The majority of the predicted H
2 are higher than computed H
2 as shown in
Figure 4. The predicted and computed H
2 are in “good” condition until 8 years and 15 years, respectively. Both predicted and computed H
2 reinstate to “very good” condition until 25 years. The predicted CH
4 is higher than computed CH
4 during the first 9 years. After 9 years, the predicted CH
4 is close with computed CH
4. The predicted CH
4 is in “good” condition during the first 5 years. Between 5 and 9 years, it ends up in “fair” condition. After 9 years, it reinstates to “very good” condition. The computed CH
4 maintains in “very good” condition for 25 years. The predicted C
2H
2 is in-line with computed C
2H
2 during the first 12 years. After 13 years, the predicted C
2H
2 starts to fluctuate at values higher than computed C
2H
2. The predicted C
2H
2 is in “good” condition during the first 9 years. Between 10 and 23 years, the predicted C
2H
2 is “fair” condition. After 23 years, it reinstates to “good” condition. The computed C
2H
2 is in “very good” condition during the first 13 years. The computed C
2H
2 is in “good” condition between 14 and 24 years. After 24 years, it reinstates to “very good” condition. The trend for predicted C
2H
4 is similar to CH
4 where it is higher than computed C
2H
4 during the first 5 years and remains close to each other after 6 years. The predicted C
2H
4 is in “good” condition during the first 3 years. After 3 years, the predicted C
2H
4 ends up in “very good” condition. The computed C
2H
4 maintains in “very good” condition for 25 years. The predicted C
2H
6 shows an agreement with the computed C
2H
6 during the first 17 years. The predicted C
2H
6 deviates from computed C
2H
6 after 17 years. The predicted C
2H
6 is in “good” condition during the first 5 years. The predicted C
2H
6 enters “fair” condition between 6 and 13 years. After 13 years, it reinstates to “very good” condition. The computed C
2H
6 is in “good” condition during the first 4 years. Between 9 and 11 years, the computed C
2H
6 enters “fair” condition. After 11 years, it reinstates to “very good” condition. The predicted CO is higher than computed CO during the first 4 years. After 4 years, the majority of predicted CO shows reasonable agreements with computed CO. The predicted CO maintains in “good” condition for 25 years. The computed CO is in “very good” condition during the first 4 years. The computed CO is in “good” condition between 5 and 23 years. After 23 years, it ends up in “very good” condition. The predicted CO
2 is higher than computed CO
2 during the first 3 years. After 3 years, the majority of both predicted CO
2 shows reasonable agreements with computed CO
2. The predicted CO
2 is in “good” condition during the first 5 years. The predicted CO
2 is in “fair” condition between 6 and 23 years. After 23 years, the predicted CO
2 reinstates to “good” condition. The computed CO
2 is in “very good” condition during the first 3 years. The computed CO
2 is in “good” condition between 4 and 6 years. It enters “fair” condition between 7 and 23 years. After 23 years, the computed CO
2 reinstates to “good” condition.
The predicted dielectric breakdown voltage is lower than computed dielectric breakdown voltage during the first 12 years. After 12 years, the predicted dielectric breakdown voltage is close to the computed dielectric breakdown voltage. The predicted and computed dielectric breakdown voltages are in “very good” condition during the first 15 years. After 16 years, the predicted and computed dielectric breakdown voltages end up in “good” condition. The predicted interfacial tension shows an agreement with the computed interfacial tension during the first 21 years. The predicted interfacial tension deviates from computed interfacial tension starting from 22 years. The predicted interfacial tension is in “very good” condition in the first 3 years. It is in “good” condition between 3 and 16 years. The predicted interfacial tension ends up in “fair” condition after 16 years. The computed interfacial tension is in “very good” condition in the first 4 years. It is in “fair” condition between 5 and 16 years. After 16 years, the computed interfacial tension enters “fair” condition. The predicted colour is higher than computed colour during the first 7 years. The predicted colour is in-line with computed colour until 16 years and deviates after 16 years. The predicted colour is in “good” condition during the first 11 years. The predicted colour is in “fair” condition between 12 and 16 years. It enters “poor” condition between 17 and 19 years. After 19 years, the predicted colour reinstates to “fair” condition. The computed colour is in “very good” condition during the first 7 years. It is in “fair” condition between 8 and 13 years. The computed enters “fair” condition between 14 and 16 years. After 16 years, it ends up in “poor” condition. The predicted acidity is higher than computed acidity during the first 7 years. After 7 years, the predicted acidity is close with the computed acidity. The predicted and computed acidity are in “very good” condition during the first 7 years. Between 8 and 16 years, the predicted and computed acidity are in “good” condition. After 17 years, the predicted and computed acidity end up in “fair” condition. The trend for predicted water content is the same as acidity where it is higher than computed value during the first 7 years and remains close to each other after 8 years. The predicted and computed water content maintain in “very good” condition for 25 years.
The trend for predicted 2-FAL is higher than computed 2-FAL during the first 8 years and remains close to each other between 8 and 17 years. The predicted 2-FAL deviates from computed C2H6 starting from 18 years. The predicted 2-FAL is in “good” condition during the first 12 years. It is in “fair” condition between 13 and 18 years. After 18 years, it ends up in “poor” condition. The computed 2-FAL is in “very good” condition during the first 7 years. It is in “good” condition between 8 and 13 years. The computed 2-FAL enters “fair” condition between 14 and 22 years. After 22 years, it ends up in “poor” condition.