title: Is there a way to solve "need multiple responses" error in R?
body: <p>I need some help. This is my code:</p>
  <pre><code>F0myanalysis &lt;- read.csv(&quot;F0.man.csv&quot;)
  F0myanalysis$group&lt;-factor(F0myanalysis$group, levels = c(&quot;experimental&quot;, &quot;control&quot;))
  str(F0myanalysis)
  F0analysismelt&lt;- melt(F0myanalysis, id=c('group'), measured=c('BINGESIZE', 'Velocity', 'Distance', 'CenterDUR', 'CENfreq', 'CORNERS'))
  names(F0analysismelt) &lt;-c('group', 'outcomes', 'values')
  F0boxplot&lt;- ggplot(F0analysismelt, aes(group, values, color = outcomes))
  F0boxplot+geom_boxplot() +labs(x='group', y='values', color = 'outcomes')+ scale_y_continuous(breaks = seq(0,22, by=2))
  
  outcomes&lt;- cbind(F0analysismelt$BINGESIZE, F0analysismelt$Velocity, F0analysismelt$Distance, F0analysismelt$CenterDUR, F0analysismelt$CENfreq, F0analysismelt$CORNERS)
  
  OPENfiF0mod1&lt;- manova(outcomes ~ group, data = F0analysismelt) 
  </code></pre>
  <p>And this is the error I get when I run the last line:</p>
  <pre><code>Error in manova(outcomes ~ group, data = F0analysismelt) : 
    need multiple responses
  In addition: Warning messages:
  1: In model.response(mf, &quot;numeric&quot;) :
    using type = &quot;numeric&quot; with a factor response will be ignored
  2: In Ops.factor(y, z$residuals) : ‘-’ not meaningful for factor
                   
  </code></pre>
  <p>Any ideas?</p>