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Differential expression analysis can be used to compare cell types. Here, we will compare malignant and oligodendrocyte cells to identify genes differentially regulated in malignant cells from the Oligodendroglioma subtype. This comparison is of interest because malignant cells in Oligodendroglioma are thought to originate from oligodendrocytes.
Normalize counts
To eliminate any zero values in the data set, add a small offset.
- Select the Classified groups (green) data node
- Select Normalization from the Normalization and scaling section of the task menu
The normalization options for single-cell RNA-Seq data are the same as for pooled or bulk RNA-Seq data.
- Drag and drop Add from the left panel to the right panel
- Set to 0.0001
- Select Finish
Filter samples
To analyze only the Oligodendroglioma subtype, we can filter the samples.
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