在Pandas数据框中按数学符号命名列

Question

I want to add the units of my parameters next to each parameter as the name of a column in my dataframe. I also need to use statistical symbols for some column names such as μ and σ2.

I tried following code according to mathematical symbols in python that is r"$...$ but it does not work for dataframe:

P[r"Infiltration rate ($1/\h^-1$)"]=r['ACH_Base']

in order to give (1/h^-1) unit to Infiltration rate parameter. In my code I have already created a new dataframe "P" and I am adding the ACH_Base column in "r" dataframe to P. How can I add mathematical symbols for naming the columns in dataframes? Thanks!!

Answer 1

It should work, but it depends on the backend used to display the dataframe. For instance, matplotlib has support to render LaTeX in plots. Here is an example:

https://matplotlib.org/users/usetex.html#text-rendering-with-latex

LaTeX can also be rendered in jupyter notebooks, but this does not apply to Python code, only for markdown cells:

http://jupyter-notebook.readthedocs.io/en/stable/examples/Notebook/Working%20With%20Markdown%20Cells.html?highlight=latex#LaTeX-equations

Answer 2

"\\h" is an unknown symbol. Does P[r"Infiltration rate ($1/h^-1$)"]=r['ACH_Base'] work to display what you want?

What unit do you wish to display? You can refer to https://matplotlib.org/users/mathtext.html and https://matplotlib.org/users/usetex.html#usetex-tutorial for more information on how to render text with LaTex.