#check and set zero values to a very small value
if (df['Wert [nT]'] == 0).any():
 df.loc[df['Wert [nT]'] == 0, 'Wert [nT]'] = 0.00001

# Get the absolute value of the magnetic field values
B\_abs = np.abs(df['Wert [nT]'].values)

# Calculate percentiles
percentiles = np.percentile(B\_abs, np.arange(0, 101, 1))

# Calculate the corresponding values of log\_10(B)
log10\_B\_abs = np.log10(B\_abs)
log10\_percentiles = np.percentile(log10\_B\_abs, np.arange(0, 101, 1))
  This code block is performing the following operations:

1. Checking and setting zero values to a very small value:
	* The line `if (df['Wert [nT]'] == 0).any():` checks if there are any rows in the `df` dataframe where the value in the `Wert [nT]` column is equal to 0.
	* The line `df.loc[df['Wert [nT]'] == 0, 'Wert [nT]'] = 0.00001` sets the values of the rows where `Wert [nT]` is equal to 0 to a very small value (in this case, 0.00001).
2. Getting the absolute value of the magnetic field values:
	* The line `B\_abs = np.abs(df['Wert [nT]'].values)` calculates the absolute value of the values in the `Wert [nT]` column of the `df` dataframe.
3. Calculating percentiles:
	* The line `percentiles = np.percentile(B\_abs, np.arange(0, 101, 1))` calculates the percentiles of the absolute value of the magnetic field values (in this case, the values between 0 and 100, with intervals of 1).
#check and set zero values to a very small value
if (df['Wert [nT]'] == 0).any():
 df.loc[df['Wert [nT]'] == 0, 'Wert [nT]'] = 0.00001

# Get the absolute value of the magnetic field values
B\_abs = np.abs(df['Wert [nT]'].values)

# Calculate percentiles
percentiles = np.percentile(B\_abs, np.arange(0, 101, 1))

# Calculate the corresponding values of log\_10(B)
log10\_B\_abs = np.log10(B\_abs)
log10\_percentiles = np.percentile(log10\_B\_abs, np.arange(0, 101, 1))

# Print the percentiles and their corresponding values of log10(B)
print("Percentiles of the absolute magnetic field values:")
for i in range(1, 101):
    print(f"{i}th percentile: {percentiles[i]} nT")
    print(f"Corresponding log10(B): {log10\_percentiles[i]}")