Changing the size of only a single plot in matplotlib, without altering figure parameters

Question

Right now I have this code:

for each in list_of_cols:
    x = vary_k_df_rmse['k_value']
    y = vary_k_df_rmse[each]

    plt.plot(x,y)

    plt.xlabel('k Value')
    plt.ylabel('rmse')
    plt.legend()

The above code produces the following graph, with multiple lines in a single plot:

I need to enlarge the plot above so the legend isn't sitting on the lines.

Adding the following line doesn't work: plt.figure(figsize=(20,10)). This is what most existing answers suggest to do.

for each in list_of_cols:
    x = vary_k_df_rmse['k_value']
    y = vary_k_df_rmse[each]

    plt.figure(figsize=(20,10))
    plt.plot(x,y)

    plt.xlabel('k Value')
    plt.ylabel('rmse')
    plt.legend()

Adding the above line to the for list that generates the graph made it so that the lines appeared in different subplots, rather than all on the same plot.

Answer 1

You need to move plt.figure(figsize=(20,10)) in front of the for loop so that only 1 figure is created.

plt.figure(figsize=(20,10))

for each in list_of_cols:
    x = vary_k_df_rmse['k_value']
    y = vary_k_df_rmse[each]

    plt.plot(x,y)

    plt.xlabel('k Value')
    plt.ylabel('rmse')
    plt.legend()