> For the complete documentation index, see [llms.txt](https://mysite.gitbook.io/sdas_manual_cn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mysite.gitbook.io/sdas_manual_cn/readme/04_manual/cell_annotation/02_input.md).

# h5ad数据格式说明

## 输入h5ad格式说明

* `st.h5ad`：空间转录组表达矩阵AnnData对象，要求包含**原始表达矩阵**、**基因名**、**空间坐标**等信息。具体请参考[SDAS输入数据格式描述](/sdas_manual_cn/readme/04_manual/sdas_input.md)。**多片**空转数据可以提供自定义的slice\_key，默认为'sampleID'，用于画图 (在cell2location中也用于提供批次信息)。如果不提供，则当做单片处理。
* `sc.h5ad`：单细胞表达矩阵AnnData对象，要求包含**原始表达矩阵**、**基因名**等信息。具体请参考[SDAS输入数据格式描述](/sdas_manual_cn/readme/04_manual/sdas_input.md)。同时单细胞obs中要有**注释**信息，存在自定义的label\_key中; **RCTD算法不支持注释信息有‘/’的情况。**
* **SCimilarity算法只适用于人类样本。**

## 输出h5ad格式说明

* 输入h5ad+注释结果：每个细胞类型的分数存在`obsm['anno_score_<algorithm_name>']`中，分数最高的类型存在`obs['anno_<algorithm_name>']`中。算法的其他输出结果和中间文件没有保存。
* 未被注释的细胞的类型统一为NA。


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