真核生物起源中阿斯加德古菌的主导贡献|Nature
多年冻土融化梯度下DNA病毒种群生态学及生物地球化学意义|NC
RApiDatetime 0.0.11 on CRAN: Micro-Maintenance
A new (micro) maintenance release of our RApiDatetime package is now on CRAN, coming only a good week after the 0.0.10 release which itself had a two year gap to its predecessor release.
RApiDatetime
provides a number of entry points for C-level functions of the R API for
Date and Datetime calculations. The …
On my way to Singapore
Mathematical Advances on Emerging Risks
Rolling scaled forecast accuracy
When we compute a MASE or RMSSE using a rolling origin, should the scaling factor be recalculated every time?
I’ve been asked this a couple of times, so perhaps it is worth providing a public answer here.
The Mean Absolute Scaled Error (MASE) (Hyndman & Koehler, 2006) is defined as <img src=“https://latex.codecogs.com/png.latex?%0A%5Ctext%7BMASE%7D%20=%20%5Cfrac%7B%5Cfrac%7B1%7D%7Bn%7D%5Csum_%7Bt%7D%20%7Cy_t%20-%20%5Chat%7By%7D_t%7C%7D%7B%5Cfrac1T%5Csum_%7Bt=1%7D%5ET%20%7Cy_t%20-%2 …

