title: converting numerical values into decimal numbers
body: <p>I have text file with values with one or two or some with 3 decimal points.These values are generated by the software based on the signal intensity of genes.When I tried to compute the distance matrix out of it,I got the warning message:</p>
  
  <blockquote>
    <p>Warning message:
    In dist(sam) : NAs introduced by coercion
    A sample text file is given below:
          sample1<br>
    a     23.45.12<br>
    b     123.345.234<br>
    c     45.2311.34</p>
  </blockquote>
  
  <p>I need to convert these values either with one decimal point or as real numbers so that i can compute distance matrix out of it from which i can use it for clustering.My expected result is given as follows: </p>
  
  <blockquote>
  <pre><code>  sample1                
  </code></pre>
    
    <p>a     23.45<br>
    b     123.345<br>
    c     45.2311</p>
  </blockquote>
  
  <p>Pleaso do help me</p>