Navigate through function call R -


i have "function call tree" don't know if it's possible , found nothing on internet.

for example :

stdmetrics <- function (x, y, z, i, a, rn, class, pulseid, dz = 1) {   c = stdmetrics_ctrl(x, y, z, a)   z = stdmetrics_z(z, dz)   = stdmetrics_i(i, z, class, rn)   rn = stdmetrics_rn(rn, class)   pu = stdmetrics_pulse(pulseid, rn)   aa = sublevelcall()   metrics = c(c, z, i, rn, pu)   return(metrics) }  sublevelcall <- function() {   sublevelcall2() }   result <- getfunctioncalltree(stdmetrics)

i obtain result no matter data structure :

stdmetrics   |stdmetrics_ctrl   |stdmetrics_z   |stdmetrics_i   |stdmetrics_rn   |stdmetrics_pulse   |sublevelcall       |sublevelcall2


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