Here, I removed gly from the testing data due to lacking of beta carbon chemical shift
The last version return a correction -0.38. And this version return a correction of -2.220446e-16, which is really small, and the correct reference is 0.
## [[1]]
## [1] 1.1643253223211436 1.1466866446299548 1.1277547842745033
## [4] 1.1096869434789784 1.1039893010708210 1.0993356780398322
## [7] 1.0913376600414062 1.0796016057727265 1.0630000753591371
## [10] 1.0506922054208916 1.0428865737127622 1.0295722876130684
## [13] 1.0137260881595624 0.9945272212151037 0.9750737163872024
## [16] 0.9511294530168716 0.9225973000921601 0.8941144058287264
## [19] 0.8661978832567622 0.8374869879008389 0.8085634802794925
## [22] 0.7803293097424069 0.7650520655175822 0.7583228992249692
## [25] 0.7566079798020803 0.7666758029287287 0.7816162429846425
## [28] 0.8018387263078113 0.8282742023937613 0.8540701377799303
## [31] 0.8780094054645878 0.9016473363452306 0.9238916410939505
## [34] 0.9523775082959217 0.9839539969056332 1.0141585316490067
## [37] 1.0396671032375637 1.0601561686221272 1.0753163295113011
## [40] 1.0860003171002421 1.0936131661007755 1.1135546203570199
## [43] 1.1281051667164672 1.1381471084459072 1.1422347587472705
## [46] 1.1352513349350646 1.1204405659510921 1.1019013418675008
## [49] 1.0855772600486011 1.0748241677326380
##
## [[2]]
## [1] 0.8347212865259954 0.8289653055548268 0.8231738198532550
## [4] 0.8173853922647991 0.8114843282902923 0.8056152301051169
## [7] 0.7997615785725196 0.7940742792250676 0.7884892302829014
## [10] 0.7829907710443680 0.7775929082021222 0.7734199963537890
## [13] 0.7705650135776836 0.7678051077072560 0.7658863020775676
## [16] 0.7642545399683771 0.7627756397176472 0.7612556409868428
## [19] 0.7599061248920879 0.7588260051081904 0.7578374096383235
## [22] 0.7571502021552772 0.7567021056937102 0.7565149091972632
## [25] 0.7565529712365160 0.7566985620753812 0.7582391624422871
## [28] 0.7603391370424418 0.7627385726408865 0.7653385576492592
## [31] 0.7680427850177064 0.7709820957843979 0.7739607121741766
## [34] 0.7769567231373294 0.7800077120304583 0.7832765477189116
## [37] 0.7866417527339372 0.7900022096413511 0.7940119412590720
## [40] 0.7992308450303186 0.8044778600837452 0.8097050320928323
## [43] 0.8150742567934295 0.8204591893479569 0.8256769513356369
## [46] 0.8308584628473406 0.8359752765729734 0.8411945385765560
## [49] 0.8463497571742680 0.8515108182091009
##
## [[3]]
## [1] -0.1020408163265305
##
## [[4]]
## [1] -0.1632653061224489