Calculation Parameters

Functions for computing custom regression parameters (e.g., temperature corrections, spectral corrections, effective irradiance) to be used as additional columns in the CapData regression.

Temperature Corrections

`calcparams.power_temp_correct`(data, power, ...)	Apply temperature correction to PV power.
`calcparams.bom_temp`(data[, poa, temp_amb, ...])	Calculate back of module temperature from measured weather data.
`calcparams.cell_temp`(data, bom, poa[, ...])	Calculate cell temp from BOM temp, POA, and heat transfer coefficient.
`calcparams.avg_typ_cell_temp`(data, poa, ...)	Calculate irradiance weighted cell temperature.

Irradiance and Atmosphere

`calcparams.rpoa_pvsyst`(data[, globbak, ...])	Calculate the sum of PVsyst's global rear irradiance and rear shading and IAM losses.
`calcparams.e_total`(data, poa, rpoa[, ...])	Calculate total irradiance from POA and rear irradiance.
`calcparams.apparent_zenith`(data[, site, ...])	Compute apparent solar zenith angle at each timestamp in `data`.
`calcparams.apparent_zenith_pvsyst`(data[, ...])	Apparent solar zenith at the mid-point of each PVsyst interval.
`calcparams.absolute_airmass`(data[, ...])	Compute absolute (pressure-corrected) airmass from apparent zenith.
`calcparams.precipitable_water_gueymard`(data)	Precipitable water (cm) from ambient temperature and relative humidity.
`calcparams.poa_spec_corrected`(data[, poa, ...])	Spectrally corrected plane-of-array irradiance.

Spectral Corrections

calcparams.spectral_factor_firstsolar(data)

First Solar spectral correction factor.

Utilities

`calcparams.scale`(data[, col, factor, verbose])	Multiply a single column by a scalar factor.
`calcparams.multiply`(data[, a, b, verbose])	Elementwise multiplication of two columns.