<p>You should have fed <code>&quot;1h&quot;</code> to your function call but you fed <code>1h</code> instead. The latter is looking for an object with that name and as the error shows, there is no such object.</p>

CC BY-SA 4.0
2020-07-20T09:46:39.743Z
2020-07-20T09:46:39.743Z
haci
<p>I'd like to add metadata to 6 individual Seurat objects so that after I merge the objects into one, I can later label or split by using these identifiers. For example, I'd like to append an age group and then interval across these 6 objects. For adding an interval, I've tried using the below:</p>
<blockquote>
<p>AddMetaData(control, metadata = 1hr, col.name = Interval)</p>
</blockquote>
<p>However, this error will occur:</p>
<pre><code>Error in .AddMetaData(object = object, metadata = metadata, col.name = col.name) : 
  object '1hr' not found
</code></pre>
<p>Appreciate any help, thank you!</p>

<scrnaseq><seurat><single-cell>
Adding treatment groups via metadata to Seurat object?
# Adding treatment groups via metadata to Seurat object?

(Asked by: username_0 on 2020-07-19)

I'd like to add metadata to 6 individual Seurat objects so that after I merge the objects into one, I can later label or split by using these identifiers. For example, I'd like to append an age group and then interval across these 6 objects. For adding an interval, I've tried using the below:

AddMetaData(control, metadata = 1hr, col.name = Interval)

However, this error will occur:
Error in .AddMetaData(object = object, metadata = metadata, col.name = col.name) : 
  object '1hr' not found

Appreciate any help, thank you!

**Tags:** scrnaseq, seurat, single-cell

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## 1 answers

### Answer by username_1 on 2020-07-20. Score: 0 | Accepted answer

You should have fed `"1h"` to your function call but you fed `1h` instead. The latter is looking for an object with that name and as the error shows, there is no such object.


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