<p>To add the column <code>status</code> can try the following:</p>
<pre><code>B@meta.data$status &lt;- status[row.names(B@meta.data),]$status
</code></pre>
<p>To rename the clusters you can try the following:</p>
<pre><code>B@meta.data$seurat_clusters &lt;- B@meta.data$status
</code></pre>
<p>However, I think the plotting functions in Seurat do not use the cluster information from <code>B@meta.data</code>, rather they use information from <code>B@active.idents</code>.
So, I guess you have to do the following instead:</p>
<pre><code>B@active.idents &lt;-  B@meta.data$status
</code></pre>
<p>This should work, but, I will verify and update this answer later.</p>

CC BY-SA 4.0
2020-07-21T12:03:23.307Z
Thank you! It worked!  `B@active.idents` worked for renaming the clusters!
Najeha Mohamed
CC BY-SA 4.0
2020-07-20T17:37:27.580Z
2020-07-20T17:45:46.117Z
2020-07-20T17:45:46.117Z
Ramasamy Kandasamy
<p>I'm working on a Seurat object and want to name the clusters according to 2 values alone (yes/no). So I want to add a new column to metadata and annotate the clusters (UMAP) with it.</p>
<pre><code>head(B@meta.data)
        orig.ident nCount_RNA nFeature_RNA percent.mito RNA_snn_res.0.6 seurat_clusters
BC01_02       BC01   999789.2         9225 0.2385090196               6               6
BC01_03       BC01   999776.9         9568 0.2925109851               6               6
BC01_04       BC01   999595.1         7482 0.0009888404               6               6
BC01_05       BC01   999992.0         8301 0.3801925053               6               6
</code></pre>
<p>I want to add a new column imported from a csv file that contains the row.names same as the meta.data with the status column as yes and no.</p>
<pre><code>head(status)
               status
BC01_02           yes
BC01_03           yes
BC01_04           yes
BC01_05           yes
</code></pre>
<p>After adding the column, I want to name the clusters with yes or no, how is it possible?</p>

<rna-seq><scrnaseq><seurat><sequence-annotation><clustering>
How to add cluster name to metadata in Seurat?
# How to add cluster name to metadata in Seurat?

(Asked by: username_0 on 2020-07-20)

I'm working on a Seurat object and want to name the clusters according to 2 values alone (yes/no). So I want to add a new column to metadata and annotate the clusters (UMAP) with it.
head(B@meta.data)
        orig.ident nCount_RNA nFeature_RNA percent.mito RNA_snn_res.0.6 seurat_clusters
BC01_02       BC01   999789.2         9225 0.2385090196               6               6
BC01_03       BC01   999776.9         9568 0.2925109851               6               6
BC01_04       BC01   999595.1         7482 0.0009888404               6               6
BC01_05       BC01   999992.0         8301 0.3801925053               6               6

I want to add a new column imported from a csv file that contains the row.names same as the meta.data with the status column as yes and no.
head(status)
               status
BC01_02           yes
BC01_03           yes
BC01_04           yes
BC01_05           yes

After adding the column, I want to name the clusters with yes or no, how is it possible?

**Tags:** rna-seq, scrnaseq, seurat, sequence-annotation, clustering

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## 1 answers

### Answer by username_1 on 2020-07-20. Score: 1

To add the column status can try the following:
B@meta.data$status <- status[row.names(B@meta.data),]$status

To rename the clusters you can try the following:
B@meta.data$seurat_clusters <- B@meta.data$status

However, I think the plotting functions in Seurat do not use the cluster information from B@meta.data, rather they use information from B@active.idents.
So, I guess you have to do the following instead:
B@active.idents <-  B@meta.data$status

This should work, but, I will verify and update this answer later.

> **Comments:**
> **username_0**: Thank you! It worked!  `B@active.idents` worked for renaming the clusters!  

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