Preprocessing¶
Methods for preprocessing impedance data from instrument files
- impedance.preprocessing.cropFrequencies(frequencies, Z, freqmin=0, freqmax=None)[source]¶
Trim out all data points below the X-axis
- Parameters
- frequenciesnp.ndarray
Array of frequencies
- Znp.ndarray of complex numbers
Array of complex impedances
- freqminfloat
Minimum frequency, omit for no lower frequency limit
- freqmaxfloat
Max frequency, omit for no upper frequency limit
- Returns
- frequencies_finalnp.ndarray
Array of frequencies after filtering
- Z_finalnp.ndarray of complex numbers
Array of complex impedances after filtering
- impedance.preprocessing.ignoreBelowX(frequencies, Z)[source]¶
Trim out all data points below the X-axis
- Parameters
- frequenciesnp.ndarray
Array of frequencies
- Znp.ndarray of complex numbers
Array of complex impedances
- Returns
- frequenciesnp.ndarray
Array of frequencies after filtering
- Znp.ndarray of complex numbers
Array of complex impedances after filtering
- impedance.preprocessing.readAutolab(filename)[source]¶
function for reading comma-delimited files from Autolab
- Parameters
- filename: string
Filename of file to extract impedance data from
- Returns
- frequenciesnp.ndarray
Array of frequencies
- impedancenp.ndarray of complex numbers
Array of complex impedances
- impedance.preprocessing.readBioLogic(filename)[source]¶
function for reading the .mpt file from Biologic EC-lab software
- Parameters
- filename: string
Filename of .mpt file to extract impedance data from
- Returns
- frequenciesnp.ndarray
Array of frequencies
- impedancenp.ndarray of complex numbers
Array of complex impedances
- impedance.preprocessing.readCHInstruments(filename)[source]¶
function for reading the .txt file from CHInstruments
- Parameters
- filename: string
Filename of .txt file to extract impedance data from
- Returns
- frequenciesnp.ndarray
Array of frequencies
- impedancenp.ndarray of complex numbers
Array of complex impedances
- impedance.preprocessing.readCSV(filename)[source]¶
function for reading plain csv files
- Parameters
- filename: string
Filename of .csv file to extract impedance data from where the file has three columns (frequency, Z_real, Z_imag)
- Returns
- frequenciesnp.ndarray
Array of frequencies
- impedancenp.ndarray of complex numbers
Array of complex impedances
- impedance.preprocessing.readFile(filename, instrument=None)[source]¶
A wrapper for reading in many common types of impedance files
- Parameters
- filename: string
Filename to extract impedance data from
- instrument: string
Type of instrument file
- Returns
- frequenciesnp.ndarray
Array of frequencies
- impedancenp.ndarray of complex numbers
Array of complex impedances
- impedance.preprocessing.readGamry(filename)[source]¶
function for reading the .DTA file from Gamry
- Parameters
- filename: string
Filename of .DTA file to extract impedance data from
- Returns
- frequenciesnp.ndarray
Array of frequencies
- impedancenp.ndarray of complex numbers
Array of complex impedances
- impedance.preprocessing.readParstat(filename)[source]¶
function for reading the .txt file from Parstat
- Parameters
- filename: string
Filename of .txt file to extract impedance data from
- Returns
- frequenciesnp.ndarray
Array of frequencies
- impedancenp.ndarray of complex numbers
Array of complex impedances
- impedance.preprocessing.readPowerSuite(filename)[source]¶
function for reading the .txt file from PowerSuite
- Parameters
- filename: string
Filename of .txt file to extract impedance data from
- Returns
- frequenciesnp.ndarray
Array of frequencies
- impedancenp.ndarray of complex numbers
Array of complex impedances
- impedance.preprocessing.readVersaStudio(filename)[source]¶
function for reading the .PAR file from VersaStudio
- Parameters
- filename: string
Filename of .PAR file to extract impedance data from
- Returns
- frequenciesnp.ndarray
Array of frequencies
- impedancenp.ndarray of complex numbers
Array of complex impedances
- impedance.preprocessing.readZPlot(filename)[source]¶
function for reading the .z file from Scribner’s ZPlot
- Parameters
- filename: string
Filename of .z file to extract impedance data from
- Returns
- frequenciesnp.ndarray
Array of frequencies
- impedancenp.ndarray of complex numbers
Array of complex impedances
- impedance.preprocessing.saveCSV(filename, frequencies, impedances, **kwargs)[source]¶
saves frequencies and impedances to a csv
- Parameters
- filename: string
Filename of .csv file to save impedance data to
- frequenciesnp.ndarray
Array of frequencies
- impedancenp.ndarray of complex numbers
Array of complex impedances
- kwargs
Keyword arguments passed to np.savetxt