text: user3968: I have 2151 cells, I clustered them by Seurat to 5 clusters. With the code below, I am able to have the number of cells per cluster and per condition:
  number_perCluster<- table(object@meta.data$conditions, 
                            object@meta.data$clusterID)
  
  Could I please get a hint on how I could proceed to produce a figure where I say: X% of cells treated with condition "Y" are located in cluster "C" and so forth?
  Thank you in advance.
  
  user3415: Here is a solution using dplyr and ggplot2:
  library(Seurat) 
  library(dplyr)
  library(ggplot2)
  
  meta.data <- pbmc_small[[]]
  
  # create random classifications for the sake of this example
  meta.data$condition <- sample(c('A', 'B', 'C'), nrow(meta.data), replace = TRUE)
  
  counts <- group_by(meta.data, condition, res.1) %>% summarise(count = n())
  
  ggplot(counts, aes(res.1, count, fill = condition)) +
    geom_bar(stat = 'identity')
  
  
  
original_text: 3968: <p>I have 2151 cells, I clustered them by Seurat to 5 clusters. With the code below, I am able to have the number of cells per cluster and per condition:</p>
  
  <pre><code>number_perCluster&lt;- table(object@meta.data<span class="math-container">$conditions, 
                            object@meta.data$</span>clusterID)
  </code></pre>
  
  <p>Could I please get a hint on how I could proceed to produce a figure where I say: X% of cells treated with condition "Y" are located in cluster "C" and so forth?</p>
  
  <p>Thank you in advance.</p>
   3415: <p>Here is a solution using <code>dplyr</code> and <code>ggplot2</code>:</p>
  <pre><code>library(Seurat) 
  library(dplyr)
  library(ggplot2)
  
  meta.data &lt;- pbmc_small[[]]
  
  # create random classifications for the sake of this example
  meta.data$condition &lt;- sample(c('A', 'B', 'C'), nrow(meta.data), replace = TRUE)
  
  counts &lt;- group_by(meta.data, condition, res.1) %&gt;% summarise(count = n())
  
  ggplot(counts, aes(res.1, count, fill = condition)) +
    geom_bar(stat = 'identity')
  </code></pre>
  <p><a href="https://i.stack.imgur.com/LL3B5.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/LL3B5.png" alt="enter image description here" /></a></p>
  