R2D2Sigma.create_variable# R2D2Sigma.create_variable(name, xdist=False)[source]# Return the error sigma variable. Auto-builds decomposition if needed. Parameters: namestrName for the PyMC variable (ignored for error_sigma). xdistboolWhether to use xdist mode (ignored, kept for protocol compatibility). Returns: pt.TensorVariableThe error sigma variable.