Enter the body of text here

Code should be placed in three backticks as shown below

```r

include your problematic code here with any corresponding output

please also include the results of running the following in an R session

install.packages("BiocManager") BiocManager::install("DESeq2") library(DESeq2) countData <- as.matrix(read.csv("count.csv", row.names="id")) head(countData) condition <- factor(c(rep("NBC",3), rep("dpd1C",3), rep("NBP",3), rep("dpd1P",3), rep("NBD",3), rep("dpd1D",3))) coldata <- data.frame(row.names = colnames(countData), condition) coldata dds <- DESeqDataSetFromMatrix(countData=countdata, colData=coldata, design=~condition)

```Error in h(simpleError(msg, call)) : error in evaluating the argument 'x' in selecting a method for function 'ncol': object 'countdata' not found

Capitalization matters in R.

> x <- 2
> X
Error: object 'X' not found