  <span class="va">x</span>,</span>
<span>  <span class="va">gamma0</span>,</span>
<span>  <span class="va">gamma1</span>,</span>
<span>  <span class="va">gamma2</span>,</span>
<span>  <span class="va">gamma3</span>,</span>
<span>  <span class="va">gamma4</span>,</span>
<span>  <span class="va">gamma5</span>,</span>
<span>  <span class="va">gamma6</span>,</span>
<span>  <span class="va">gamma7</span>,</span>
<span>  <span class="va">knots</span>,</span>
<span>  scale <span class="op">=</span> <span class="s