stop=1000000000
profile=""

#stop=1000000
#profile="cpuprofile cpu.pprof"

mlr \
  $profile \
  --ocsv \
  --igen --gen-stop $stop \
  put '
    begin {
      @colors=["red","purple","yellow","green","blue","orange"];
      @shapes=["triangle","square","circle","pentagon","hexagon"];
      @index = 1;
    }

    $color = urandelement(@colors);
    $shape = urandelement(@shapes);
    $flag = (urand32() < 0.6) ? "true" : "false";
    $index = @index;
    $quantity=fmtnum(urandrange(50,100),"%.4f");
    $rate=fmtnum(urandrange(1,10),"%.4f");

    @index += urandint(2,10);
  ' \
  then filter '$quantity > 60.0' \
  then put '$y = $k + $index**2 + log10($rate/$quantity)' \
  then rename i,k \
  then cut -xf index \
  then filter '$rate > 2'