Skip to main content

Questions tagged [single-cell]

Questions about techniques in which the genetic material of a single cell is analysed individually

Filter by
Sorted by
Tagged with
5 votes
2 answers
14k views

Manually define clusters in Seurat and determine marker genes

I want to define two clusters of cells in my dataset and find marker genes that are specific to one and the other. Is there a way to do this in Seurat? Say, if I ...
Nikita Vlasenko's user avatar
12 votes
2 answers
4k views

determining doublets in single-cell RNA-seq

Doublets are a known problem with scRNA-seq experiments, where 2 or more cells are sometimes captured instead. To determine their presence, there are studies that mix multiple species (such as human ...
burger's user avatar
  • 2,209
7 votes
3 answers
16k views

Finding the optimal resolution parameter in Seurat's FindClusters function

In Seurats' documentation for FindClusters() function it is written that for around 3000 ...
Nikita Vlasenko's user avatar
6 votes
2 answers
5k views

What are doublets in single cell RNA-seq data?

I am reading The Tabula Muris Consortium et al. (pp). In some organs, cells with more than 2 million reads were also excluded as a conservative measure to avoid doublets. How exactly is a “doublet”...
gc5's user avatar
  • 1,823
5 votes
1 answer
624 views

Single-cell RNA sequencing (scRNA-seq): filtering cells by transcript counts, how to choose cutoffs?

I am running a notebook with example for the MAGIC algorithm. In the data preprocessing step, a filtering operation is required to filter out cells with a small count of transcripts. My question is ...
gc5's user avatar
  • 1,823
5 votes
1 answer
108 views

How to compute the chance of failing to detect a gene given the detection limit of a protocol

In Shapiro et al., when discussing about loss of molecules as source of error in single-cell sequencing, it is written that: Another source of error is losses, which can be severe. The detection ...
gc5's user avatar
  • 1,823
2 votes
1 answer
4k views

Cellranger aggr and Seurat merge difference?

I have multiple libraries of 10x Chromium single-cell RNA-seq data, which I'd like to combine. One option is using cellranger aggr which by default does a depth ...
Peter's user avatar
  • 2,644
2 votes
0 answers
61 views

shiny app for single cell cluster export issue

I'm trying to create a shiny app for single cell data visualization and then label cells with genes till this step it works, the final step when I try to export cluster it is not exporting the desired ...
PesKchan's user avatar
  • 207
0 votes
1 answer
699 views

Stacked barplot for single cell analysis

I want to create a stacked bar-graph with different cell cycles for each cell type within each condition. I have uploaded the file for it. Don't know how to go about it as now I have another condition ...
user6774's user avatar