How to write a for loop to add to a label

I have labels from a tabel that I have extracted from the table but I am trying to add a _x, _y, and _z to each indivdual label. For example if the labels were 'arm' and 'leg' the end result would be 'arm_x, arm_y, and arm_z' . I want to do this using a for loop but I have no idea how to do this

Answer 1

[Kevin Holly]

t = array2table(rand(3,3));
t.Properties.VariableNames = {'arm','leg','foot'}

t = 3×3 table
      arm        leg        foot  
    _______    ________    _______

    0.10922    0.051723    0.94472
     0.5496     0.17917    0.75859
    0.74596     0.97866    0.98607

for ii = 1:length(t.Properties.VariableNames)
    t.Properties.VariableNames{ii} = [t.Properties.VariableNames{ii} '_x'];
end
t

t = 3×3 table
     arm_x      leg_x      foot_x 
    _______    ________    _______

    0.10922    0.051723    0.94472
     0.5496     0.17917    0.75859
    0.74596     0.97866    0.98607

Assuming you have the data in a matrix:

header = ["arm","arm","arm","leg","leg","leg","foot","foot","foot"];
data = rand(3,9);
m=[header;data]

m = 4×9 string array
    "arm"        "arm"        "arm"        "leg"        "leg"        "leg"        "foot"       "foot"       "foot"   
    "0.28732"    "0.35497"    "0.77483"    "0.906"      "0.97643"    "0.41476"    "0.80085"    "0.13739"    "0.45569"
    "0.76207"    "0.59204"    "0.90457"    "0.3132"     "0.34569"    "0.45569"    "0.73151"    "0.91559"    "0.93208"
    "0.82099"    "0.39515"    "0.98561"    "0.23393"    "0.74316"    "0.8982"     "0.40011"    "0.33814"    "0.94749"

t2 = array2table(data);
for ii = 1:3:length(header)
    header(ii) = convertCharsToStrings([char(header(ii)) '_x']);
end
for ii = 2:3:length(header)
    header(ii) = convertCharsToStrings([char(header(ii)) '_y']);
end
for ii = 3:3:length(header)
    header(ii) = convertCharsToStrings([char(header(ii)) '_z']);
end
t2.Properties.VariableNames = header

t2 = 3×9 table
     arm_x      arm_y      arm_z      leg_x      leg_y      leg_z     foot_x     foot_y     foot_z 
    _______    _______    _______    _______    _______    _______    _______    _______    _______

    0.28732    0.35497    0.77483      0.906    0.97643    0.41476    0.80085    0.13739    0.45569
    0.76207    0.59204    0.90457     0.3132    0.34569    0.45569    0.73151    0.91559    0.93208
    0.82099    0.39515    0.98561    0.23393    0.74316     0.8982    0.40011    0.33814    0.94749