The proportion of R factor was not consistent with the proportion of rainfall per month.

月降雨侵蚀力和降雨量所占比例季节分布不一致。

Another factor driving R&D offshoring is the availability of low-cost intellectual capital.

驱使研发活动离开本土到海外经营的另一个因素是可以获得底成本的脑力资源。

Multivariate analysis is to use R-typer factor to judge the basic characters and variable natures of ecotypes of wheat varieties.

多变量分析法运用r型因子分析来判断品种生态型的基本特征和可变特征。

The sulfonamides, streptomycin, chloramphenicol and other sensitive, but easy to resistance, with R factor is the transfer of plasmid obtained.

对磺胺类、链霉素、氯霉素等敏感，但易耐药，是由带有R因子的质粒转移而获得的。

Random forest package in R shows error during prediction() if there are new factor levels present in test data. Is there any way to avoid this error?

随机森林包R显示在预测误差（）如果有新因素水平出现在测试数据。有什么方法可以避免这个错误?。