Iman Tahmasbian

3 Questions 14 Answers 0 Followers

Questions related from Iman Tahmasbian

How to explain negative correlation among litterfall total C with litterfall δ13C and soil water extractable C and N in a forest ecosystem?

The study was a repeated measures with monthly sampling for up to 12 month after prescribed burning in a subtropical native forest. Overall, there were positive correlations among soil (0-5 cm)...

10 November 2018 8,962 0 View

When comparing two different regression models (PLS and ANN), is that always true that the model with higher R2 should have lower RMSE?

I am comparing PLS regression model and ANN for the same data. The PLS gives the higher R-square but also higher RMSE.

15 November 2016 2,396 8 View

Does anyone know when interquartile range (Q3-Q1) is larger than standard deviation? when are they equal?

I am calculating RPD (ratio of prediction to deviation = standard deviation/ RMSE) to evaluate the prediction ability of a regression model. An alternative of RPD is RPIQ which is calculated as...

01 January 1970 7,096 3 View