How can I change the color of the slices in my pie chart?

How can I change the color of the slices in the pie chart?

*R_Pie(1).FaceColor = 'g' will change the color of the first slice but when running the line below it I get the error: " Unrecognized property 'FaceColor' for class 'matlab.graphics.primitive.Text' "

An example of my attempt is below.

TT = 10

RT = 25

TN = 2

RN = 3

R = [RT , RN]

T = [TT , TN]

subplot(2,2,1)

R_Pie = pie(R)

R_Pie(1).FaceColor = 'g'

R_Pie(2).FaceColor = 'r'

subplot(2,2,2)

T_Pie = pie(T)

T_Pie(1).FaceColor = 'g'

T_Pie(2).FaceColor = 'r'

Answer 1

[Voss]

TT = 10;
RT = 25;
TN = 2;
RN = 3;
R = [RT , RN];
T = [TT , TN];
subplot(2,2,1)
R_Pie = pie(R)

R_Pie = 
  1×4 graphics array:

    Patch    Text     Patch    Text 

Notice the elements of R_Pie alternate Patch, Text, Patch, Text, ... Therefore, the second slice is the third element of R_Pie.

R_Pie(1).FaceColor = 'g';
R_Pie(3).FaceColor = 'r';
subplot(2,2,2)
T_Pie = pie(T)

T_Pie = 
  1×4 graphics array:

    Patch    Text     Patch    Text 

T_Pie(1).FaceColor = 'g';
T_Pie(3).FaceColor = 'r';

[Rookie Programmer]

@Voss

I have one more question:

I am trying to display the values of RT and RN above the percentage of each slice or in the legend.

How can I accomplish this?

The code below is attempting to display them above the percentage of each slice..., I get a box next to the percentage value.

Rtext = findobj(R_Pie, 'Type', 'text');

RpercentageValues = get(Rtext, 'String');

Rtxt = {[RT],[RN]}';

combindedtxt = vertcat(Rtxt,RpercentageValues);

Rtext(1).String = combindedtxt(1)

Rtext(2).String = combindedtxt(2)

The code below is attempting to sign the values in the legend

RLegend = {'RT:'[RT],'RN:'[RN]}

TLegend = {'TT:'[TT],'TN:'[TN]}

[Voss]

Something like this?

TT = 10;
RT = 25;
TN = 2;
RN = 3;
R = [RT , RN];
T = [TT , TN];

subplot(2,2,1)
R_Pie = pie(R);
R_Pie(1).FaceColor = 'g';
R_Pie(3).FaceColor = 'r';
R_Pie(2).String = sprintf('RT: %d\n%s',RT,R_Pie(2).String);
R_Pie(4).String = sprintf('RN: %d\n%s',RN,R_Pie(4).String);

subplot(2,2,2)
T_Pie = pie(T);
T_Pie(1).FaceColor = 'g';
T_Pie(3).FaceColor = 'r';
T_Pie(2).String = sprintf('TT: %d\n%s',TT,T_Pie(2).String);
T_Pie(4).String = sprintf('TN: %d\n%s',TN,T_Pie(4).String);