1.4.0版本的更改允许…参数传递给rowData()和colData()。o增加了weights()方法，用于获取/设置观测权重。o增加了reducedDimNames<-方法来设置降维槽名。o在reducedDim()和reducedDim()中增加了dimnames =参数。o导出内部元数据字段的getter和setter。o增加了使用内部元数据字段的开发人员说明。1.2.0版更改o增加了clearSpikes()函数来删除所有的插入信息。o增加了clearSizeFactors()函数来删除所有的大小因子信息。o增加了sizeFactorNames()函数来查询可用的(命名的)大小因子集。 o isSpike() with an unknown spike-in set in type= will no longer throw an error, and will quietly return NULL. o isSpike<- with type=NULL is deprecated in favour of clearSpikes() for removing existing spike-in information. All spike-in sets must also be explicitly named during assignment. o Added the LinearEmbeddingMatrix class for storing dimensionality reduction with loadings. Changes in version 1.0.0 o New package SingleCellExperiment, for representation of single-cell genomics data.