title: R Stacked Bars plot using ggplot 2
body: <p><img src="https://i.stack.imgur.com/ChK9T.png" alt="enter image description here"></p>
  
  <p>I would like to make a % stacked plot like the picture uploaded.
  This is my script and  I get the following error: </p>
  
  <pre><code>gplot(data=res, aes(x=GO.term, y=up)) + geom_bar()
  **Error: stat_count() must not be used with a y aesthetic.**
  </code></pre>
  
  <p># Bar plot for GO terms</p>
  
  <pre><code>setwd("C:/Users/gmbz/Desktop/RNA analysis/Rscripts/Bar plot") #set up working directory 
  res &lt;- read.delim("GOBarPlot.txt", header=TRUE) 
  head(res)
  tail(res)
  show(res)
  library(ggplot2)
  ggplot(data=res, aes(x=up, y=down, fill=GO.term)) + geom_bar()
  </code></pre>
  
  <p>Here is my data:</p>
  
  <pre><code>Goterm  up  down
  metal ion transmembrane transporter activity    10  90
  translational elongation    22.22222222 77.77777778
  metal ion transport 25  75
  translation 30.08474576 69.91525424
  aminoacyl-tRNA ligase activity  30.76923077 69.23076923
  anchored component of membrane  33.33333333 66.66666667
  apoptotic process   33.33333333 66.66666667
  ribosome    34.11764706 65.88235294
  regulation of cell cycle    35  65
  translation elongation factor activity  35.71428571 64.28571429
  cell wall   37.20930233 62.79069767
  obsolete microsome  37.5    62.5
  biosynthetic process    38.46153846 61.53846154
  extracellular region    38.88888889 61.11111111
  unfolded protein binding    42.10526316 57.89473684
  protein folding 43.66197183 56.33802817
  glutamine metabolic process 43.75   56.25
  cellular amino acid metabolic process   46.875  53.125
  fungal-type vacuole 48.61111111 51.38888889
  glycolytic process  53.33333333 46.66666667
  oxidoreductase activity 54.03225806 45.96774194
  oxidation-reduction process 54.57875458 45.42124542
  plasma membrane 55.6097561  44.3902439
  regulation of cell size 57.14285714 42.85714286
  cytosol 57.25806452 42.74193548
  transmembrane transport 57.48792271 42.51207729
  flavin adenine dinucleotide binding 62.16216216 37.83783784
  metalloendopeptidase activity   63.15789474 36.84210526
  transmembrane transporter activity  65.71428571 34.28571429
  structural constituent of ribosome  66.34146341 33.65853659
  chronological cell aging    66.66666667 33.33333333
  transporter activity    69.33333333 30.66666667
  mitochondrial inner membrane    72  28
  substrate-specific transmembrane transporter activity   75  25
  mitochondrial outer membrane    76.11940299 23.88059701
  integral component of mitochondrial inner membrane  92.85714286 7.142857143
  fungal-type cell wall   100 0
  </code></pre>
  
  <p>Any feed back?</p>
  
  <p>Question nr 2. How can I change the font of the GOterms, preferably in Times New Roman? is that possible?</p>