Method setLabel

3rdparty/qcustomplot/qcustomplot.cpp:8945–8952

! Sets the text of the axis label that will be shown below/above or next to the axis, depending on its orientation. To disable axis labels, pass an empty string as \a str. */

  its orientation. To disable axis labels, pass an empty string as \a str.
*/
void QCPAxis::setLabel(const QString &str)
{
  if (mLabel != str)
  {
    mLabel = str;
    mCachedMarginValid = false;
  }
}

/*!
  Sets the distance between the tick labels and the axis label.