Here are a couple of guesses:
load matlab_bubu
M = vertcat(bubu{:});
idx = M(:,1) > 0;
T1 = string(M(:,1));
T1(idx) = "Loop";
T2 = string(M(:,2));
T2(idx) = T2(idx) + "**";
T = table(T1,T2,M(:,3));
disp(T);
T1 T2 Var3
______ _____ ________
"0" "0" 0
"0" "0" 0
"Loop" "1**" 0.26538
"Loop" "1**" 0.32657
"Loop" "1**" 0.35383
"Loop" "1**" 0.3581
"Loop" "1**" 0.26178
"Loop" "1**" 0.16162
"0" "0" 0
"Loop" "1**" 0.23842
"Loop" "1**" 0.32225
"Loop" "1**" 0.24888
"Loop" "1**" 0.15602
"Loop" "1**" 0.21792
"Loop" "1**" 0.25387
"Loop" "1**" 0.22567
"Loop" "1**" 0.10702
"0" "0" 0
"0" "0" 0
"0" "0" 0
"Loop" "1**" 0.25905
"0" "0" 0
"Loop" "1**" 0.27203
"0" "0" 0
"0" "0" 0
"0" "0" 0
"0" "0" 0
"Loop" "1**" 0.22457
"0" "0" 0
"Loop" "1**" 0.23022
"0" "0" 0
"0" "0" 0
"0" "0" 0
"0" "0" 0
"Loop" "1**" 0.16852
"Loop" "1**" 0.17433
"Loop" "1**" 0.20546
"Loop" "1**" 0.16953
"Loop" "1**" 0.21737
"Loop" "1**" 0.20775
"Loop" "1**" 0.21606
"Loop" "1**" 0.15242
"Loop" "1**" 0.2982
"Loop" "1**" 0.12745
"Loop" "1**" 0.28101
"Loop" "1**" 0.15085
"Loop" "1**" 0.28145
"Loop" "1**" 0.32807
"Loop" "1**" 0.29428
"Loop" "1**" 0.076382
"0" "0" 0
"0" "0" 0
"0" "0" 0
"0" "0" 0
"Loop" "1**" 0.21402
"Loop" "1**" 0.19676
"Loop" "1**" 0.20206
"0" "0" 0
"0" "0" 0
"Loop" "1**" 0.20061
"Loop" "1**" 0.22529
"0" "0" 0
"Loop" "1**" 0.28305
"Loop" "1**" 0.25472
"Loop" "1**" 0.15076
"Loop" "1**" 0.14604
"0" "0" 0
"Loop" "1**" 0.11955
"0" "0" 0
"0" "0" 0
"Loop" "1**" 0.20162
"Loop" "1**" 0.18376
"Loop" "1**" 0.2435
T{:,1} = strcat(T{:,1}," ",T{:,2});
T = removevars(T,2);
disp(T);
T1 Var3
__________ ________
"0 0" 0
"0 0" 0
"Loop 1**" 0.26538
"Loop 1**" 0.32657
"Loop 1**" 0.35383
"Loop 1**" 0.3581
"Loop 1**" 0.26178
"Loop 1**" 0.16162
"0 0" 0
"Loop 1**" 0.23842
"Loop 1**" 0.32225
"Loop 1**" 0.24888
"Loop 1**" 0.15602
"Loop 1**" 0.21792
"Loop 1**" 0.25387
"Loop 1**" 0.22567
"Loop 1**" 0.10702
"0 0" 0
"0 0" 0
"0 0" 0
"Loop 1**" 0.25905
"0 0" 0
"Loop 1**" 0.27203
"0 0" 0
"0 0" 0
"0 0" 0
"0 0" 0
"Loop 1**" 0.22457
"0 0" 0
"Loop 1**" 0.23022
"0 0" 0
"0 0" 0
"0 0" 0
"0 0" 0
"Loop 1**" 0.16852
"Loop 1**" 0.17433
"Loop 1**" 0.20546
"Loop 1**" 0.16953
"Loop 1**" 0.21737
"Loop 1**" 0.20775
"Loop 1**" 0.21606
"Loop 1**" 0.15242
"Loop 1**" 0.2982
"Loop 1**" 0.12745
"Loop 1**" 0.28101
"Loop 1**" 0.15085
"Loop 1**" 0.28145
"Loop 1**" 0.32807
"Loop 1**" 0.29428
"Loop 1**" 0.076382
"0 0" 0
"0 0" 0
"0 0" 0
"0 0" 0
"Loop 1**" 0.21402
"Loop 1**" 0.19676
"Loop 1**" 0.20206
"0 0" 0
"0 0" 0
"Loop 1**" 0.20061
"Loop 1**" 0.22529
"0 0" 0
"Loop 1**" 0.28305
"Loop 1**" 0.25472
"Loop 1**" 0.15076
"Loop 1**" 0.14604
"0 0" 0
"Loop 1**" 0.11955
"0 0" 0
"0 0" 0
"Loop 1**" 0.20162
"Loop 1**" 0.18376
"Loop 1**" 0.2435