title: R - 'princomp' can only be used with more units than variables
body: <p>I am using R software (R commander) to cluster my data. I have a smaller subset of my data containing 200 rows and about 800 columns. I am getting the following error when trying kmeans cluster and plot on a graph. 
  "'princomp' can only be used with more units than variables"</p>
  
  <p>I then created a test doc of 10 row and 10 columns whch plots fine but when I add an extra column I get te error again.
  Why is this? I need to be able to plot my cluster. When I view my data set after performing kmeans on it I can see the extra results column which shows which clusters they belong to.</p>
  
  <p>IS there anything I am doing wrong, can I ger rid of this error and plot my larger sample???
  Please help, been wrecking my head for a week now.
  Thanks guys.</p>