ode> will take the absolute value of the data in-place, while
<code class="docutils literal notranslate"><span class="pre">d.run(std,'t2')</span></code> will run a standard deviation along the ‘t2’ axis
(this removes the ‘t2’ dimension once you’re done, since it would have a length of only 1 – <a class="reference internal" href="auto_api/pyspecdata.html#pyspecdata.core.nddata.run_nopop" title="pyspecdata.core.nddata.run_nopop"><code class="xref py py-meth docutils literal notranslate"><span clas