use "($01)"

let LAImax=LAI[k=$02, l=@MAX]
let DENS=IND[k=$02, l=@AVE]
let Dg=DIAMETER[k=$02, l=@AVE]
let BAr=BA[k=$02, l=@AVE]
let R=NPP[k=$02, l=@AVE]/GPP[k=$02, l=@AVE]
let N=NPP[k=$02, l=@AVE]
let age=AGE_STAND[k=$02, l=@AVE]
let H=HEIGHT[k=$02, l=@AVE]
let Vol=WOOD_VOL[k=$02, l=@AVE]
let AB=LEAF_M_C[k=$02, l=@AVE]+SAP_M_AB_C[k=$02, l=@AVE]+HEART_M_AB_C[k=$02, l=@AVE]+FRUIT_M_C[k=$02, l=@AVE]
let BE=ROOT_M_C[k=$02, l=@AVE]+SAP_M_BE_C[k=$02, l=@AVE]+HEART_M_BE_C[k=$02, l=@AVE]

list/file=simple_info.csv/norowlab/append/nohead "($03)",$02,LAImax,DENS,Dg,BAr,age,Vol,AB,BE,R,N,H