title: triple integral calculation with R
body: <p>It's my first time on stackoverflow, so please be patient with me!
  I'm using R-package "pracma" to calculate a triple integral.
  This is my code:</p>
  
  <pre><code>mu1=0
  mu2=0
  mu3=0
  mu4=0
  sigma1=1
  sigma2=1
  sigma3=1
  sigma4=1
  f3=function(x,y,z){dnorm(z,mean = mu2,sd=sigma2)*dnorm(y,mean = 
  mu3,sd=sigma3)*(1-pnorm(z,mean= mu1,sd=sigma1))*dnorm(x,mean = 
  mu4,sd=sigma4)}
  ymin=function(x){x}
  zmin=function(x,y){y}
  integral3(f3,xmin = -100,xmax = 100,ymin,ymax=100,zmin,zmax = 100)
  </code></pre>
  
  <p>But, actually, I obtain the error below:</p>
  
  <pre><code> Error in if (adjerr[1] &gt; localtol) { :
  
    missing value where TRUE/FALSE needed
  </code></pre>
  
  <p>Can someone give me a cue to solve this problem?
  Thank in advance</p>