plt.rcParams['axes.unicode_minus']=False

This line of code is used in Python to remove the negative sign (unicode character) from the axes of a matplotlib plot. By default, matplotlib includes the negative sign, which can be confusing or misleading in some cases. By setting `plt.rcParams['axes.unicode_minus']` to `False`, the negative sign will be replaced with a hyphen, making the plot easier to read and understand.