title: "Error in (1 - h) * qs[i] : non-numeric argument to binary operator" this keeps popping up every time i try to run my code
body: <p>I have some raw data from 52 patients, and I have formatted the raw data to have the Entrez Gene ID on the first column, and the ID for each patient in the next 52 columns.  I set the working directory, where to access the raw data file, the fdr and the fold_change. My code then ran like this: </p>
  
  <pre><code>setwd(working_dir)
  
  rawdata = read.table(rawdata_file, header = TRUE, stringsAsFactors = FALSE, row.names = NULL, sep = "\t")
  
  dim(rawdata)
  head(rawdata)
  str(rawdata)
  
  quant &lt;- apply(rawdata, 1, quantile, 0.75)
  ******
  keep &lt;- which((quant &gt;=2) ==1)
  rawdata &lt;- rawdata[keep,]
  dim(rawdata)
  </code></pre>
  
  <p>But once I got to <code>quant &lt;- apply(rawdata, 1, quantile, 0.75)</code>, the following error pops up: </p>
  
  <blockquote>
    <p>Error in (1 - h) * qs[i] : non-numeric argument to binary operator</p>
  </blockquote>
  
  <p>I am pretty new to R, so I would appreciate any help with my code. Thank you so much!</p>