title: Where is the "Corr" column for my lmer summary under "Random effects?"
body: <p>I'm using the lmer package to build a model and want to check for correlations between random effects.</p>
  <p>First I build a tibble:</p>
  <pre><code>id &lt;- rep(1:6, each=4) 
  group &lt;- rep(c(&quot;A&quot;,&quot;B&quot;), each=12)
  type &lt;- rep(c(&quot;pencil&quot;, &quot;pencil&quot;, &quot;pen&quot;, &quot;pen&quot;), times=6)
  color &lt;- rep (c (&quot;blue&quot;, &quot;red&quot;), times = 12)
  dv &lt;- c(-24.3854453, 17.0358639, -15.5174479, 8.6462489, -7.0561166, 3.3524410, 21.6199364, -6.1020999, 13.2464223, 20.3740206, 22.8571793, -6.6159629, 18.7898553, -8.2504319, 17.9571641, 2.9555213, -19.5516738, -0.5845135, 9.6041710, -4.1301420, 4.1740094, -24.2496521, 7.4432948, -0.8290391)
  sample_data &lt;- as_tibble(cbind(id, group, type, color, dv)
  </code></pre>
  <p>Here is my sample_data:</p>
  <pre><code>    id   group   type   color  dv
      1    A       pencil blue   0.05925979
      1    A       pencil red    4.60326151
      1    A       pen    blue   -20.72000620
      1    A       pen    red    -15.27612843    
      2    A       pencil blue   -0.68719576
      2    A       pencil red    16.34200026
      2    A       pen    blue   18.23954687
      2    A       pen    red    21.02837383
      3    A       pencil blue   -22.28695974
      3    A       pencil red    -18.36587259
      3    A       pen    blue   -15.13952913
      3    A       pen    red    19.95919637
      4    B       pencil blue   -19.52410412
      4    B       pencil red    -3.25912890
      4    B       pen    blue   -12.11669400
      4    B       pen    red    15.93333896
      5    B       pencil blue   -17.93575204
      5    B       pencil red    -8.58879605
      5    B       pen    blue    8.89757943
      5    B       pen    red    -13.42995221
      6    B       pencil blue   12.03769124
      6    B       pencil red    -10.28876053
      6    B       pen    blue    7.69523239
      6    B       pen    red    -2.94621122
  </code></pre>
  <p>Now I run my model and summarize it:</p>
  <pre><code>test.model &lt;- lmer(dv ~ 1 + group * type * color + (1 * type * color | id), data = sample_data,  REML = FALSE)
  summary(test.model)
  </code></pre>
  <p>Here's my output:</p>
  <pre><code>Linear mixed model fit by maximum likelihood . t-tests use Satterthwaite's method ['lmerModLmerTest']
  Formula: dv ~ 1 + group * type * color + (1 * type * color | id)
     Data: test
  
       AIC      BIC   logLik deviance df.resid 
     204.7    216.5    -92.4    184.7       14 
  
  Scaled residuals: 
       Min       1Q   Median       3Q      Max 
  -2.16529 -0.45429  0.09296  0.62406  1.62720 
  
  Random effects:
   Groups   Name        Variance Std.Dev.
   id       (Intercept)   4.975   2.23   
   Residual             124.228  11.15   
  Number of obs: 24, groups:  id, 6
  
  Fixed effects:
                              Estimate Std. Error       df t value Pr(&gt;|t|)  
  (Intercept)                  -0.6679     6.5626  23.8937  -0.102   0.9198  
  groupA                       -0.6894     9.2809  23.8937  -0.074   0.9414  
  typepencil                  -10.3603     9.1005  18.0000  -1.138   0.2699  
  colorblue                    12.3361     9.1005  18.0000   1.356   0.1920  
  groupA:typepencil            25.3050    12.8700  18.0000   1.966   0.0649 .
  groupA:colorblue             -1.3256    12.8700  18.0000  -0.103   0.9191  
  typepencil:colorblue         -0.1705    12.8700  18.0000  -0.013   0.9896  
  groupA:typepencil:colorblue -30.4925    18.2010  18.0000  -1.675   0.1112  
  ---
  Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
  
  Correlation of Fixed Effects:
              (Intr) groupA typpnc colrbl grpA:t grpA:c typpn:
  groupA      -0.707                                          
  typepencil  -0.693  0.490                                   
  colorblue   -0.693  0.490  0.500                            
  grpA:typpnc  0.490 -0.693 -0.707 -0.354                     
  gropA:clrbl  0.490 -0.693 -0.354 -0.707  0.500              
  typpncl:clr  0.490 -0.347 -0.707 -0.707  0.500  0.500       
  grpA:typpn: -0.347  0.490  0.500  0.500 -0.707 -0.707 -0.707
  </code></pre>
  <p>I want to check the correlations for random effects, but I don't see the usual &quot;Corr&quot; column (usually appears next to &quot;St.Dev.&quot; in the output under &quot;Random effects&quot;). Where is it?</p>