ass="external-link">ifelse</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/numeric.html" class="external-link">as.numeric</a></span><span class="op">(</span><span class="va">ss1</span><span class="op">$</span><span class="va">Subject</span><span class="op">)</span> <span class="op"><a href="https://rdrr.io/r/base/Arithmetic.html" class="external-link">%%</a></span> <span class="fl">10</span> <span class="op">&lt;</span> <span class="fl">7</span>, <span class="fl">2</span>