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dogTK avatar dogTK commented on September 28, 2024 1

@knakamura6222053
リプライ見れたらリアクションください!

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knakamura6222053 avatar knakamura6222053 commented on September 28, 2024 1

すみません!
昨日まで解析が立て込んでいたので、今日一日使って参考にしながら進めようと思っています。

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knakamura6222053 avatar knakamura6222053 commented on September 28, 2024 1

 終わりました!5章に入っていこうかと思います!

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knakamura6222053 avatar knakamura6222053 commented on September 28, 2024 1

5章の途中進んでいるのですが、メモリエラーが起こってしまいました。
論文に記載してある、QCを変更してより厳しい条件に設定しても難しいですか?
※計算メモリの方が原因で落ちてそうです。

pbmc.data <- Read10X(data.dir = "/Users/idrc/Desktop/singlecell_test/GSE149689/")

pbmc <- CreateSeuratObject(counts = pbmc.data, project = "pbmc3k", min.cells = 3, min.features = 200)
pbmc[["percent.mt"]] <- PercentageFeatureSet(pbmc, pattern = "^MT-")
pbmc <- subset(pbmc, nFeature_RNA >= 200 & nFeature_RNA <= 5000 & percent.mt < 15)
pbmc <- pbmc %>%

  • NormalizeData() %>% 
    
  • FindVariableFeatures(selection.method = "vst", nfeatures = 2000) %>% 
    
  • ScaleData(features = VariableFeatures(object = pbmc)) %>% 
    
  • RunPCA() %>% 
    
  • RunUMAP(dims = 1:20) %>% 
    
  • FindNeighbors(dims = 1:10) %>% 
    
  • FindClusters(resolution = 0.5)
    

Performing log-normalization
0% 10 20 30 40 50 60 70 80 90 100%
[----|----|----|----|----|----|----|----|----|----|
**************************************************|
Calculating gene variances
0% 10 20 30 40 50 60 70 80 90 100%
[----|----|----|----|----|----|----|----|----|----|
**************************************************|
Calculating feature variances of standardized and clipped values
0% 10 20 30 40 50 60 70 80 90 100%
[----|----|----|----|----|----|----|----|----|----|
**************************************************|
Centering and scaling data matrix
Error: vector memory exhausted (limit reached?)

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knakamura6222053 avatar knakamura6222053 commented on September 28, 2024 1

@dogTK
4章のサンプルでも試してみたのですが、同じところでエラーが出てしまいました。
Centering and scaling data matrix
Error: vector memory exhausted (limit reached?)

FindNeighbors(dims = 1:10)
FindCluster(resolution = 0.5)の値を変更してみたのですが、状況は変わりませんでした。

何か改善策はありますでしょうか…

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knakamura6222053 avatar knakamura6222053 commented on September 28, 2024 1

@dogTK
お忙しい中、ありがとうございます。
他のPCで環境を作り直して私の方でも何かできないか試してみます!

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dogTK avatar dogTK commented on September 28, 2024

@knakamura6222053 こちら完了しました?

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dogTK avatar dogTK commented on September 28, 2024

あ、いえいえ!自分のペースでやってもらって大丈夫です!

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dogTK avatar dogTK commented on September 28, 2024

@knakamura6222053
確認します!

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dogTK avatar dogTK commented on September 28, 2024

#4 こっちにつくりなおしたのでクローズ

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