| ct1 | C_T values from qPCR (separate tubes) | 
| ct2 | C_T values from qPCR (same tubes) | 
| ct3 | C_T values from qPCR (Serial dilutions) | 
| ct4 | C_T values from qPCR (Serial dilutions) | 
| pcr | 'pcr' package | 
| pcr_analyze | Apply qPCR analysis methods | 
| pcr_assess | Assess qPCR data quality | 
| pcr_curve | Calculate the standard curve model | 
| pcr_dct | Calculate the delta_ct model | 
| pcr_ddct | Calculate the delta_delta_ct model | 
| pcr_efficiency | Calculate amplification efficiency | 
| pcr_lm | Linear regression qPCR data | 
| pcr_standard | Calculate the standard curve | 
| pcr_test | Statistical testing of PCR data | 
| pcr_ttest | t-test qPCR data | 
| pcr_wilcox | Wilcoxon test qPCR data |