Plot bmp280 data(temperature, altitude and air pressure) to matlab via arduino

For now those 3 types of data could print in the serial monitor, how could I plot those data in matlab in real time?

I am using I2C interface beteen sensor and arudino.

a=serial('COM3','BaudRate',9600);


%create the coordinate axis
plotTitle='Test';
xLabel = 'Elapsed Time (s)';     % x-axis label
yLabel = 'Temperature (C)';
legend1='Temperature';
legend2='Pressure';
legend3='alitude';
yMax=40 ;                          
yMin=0;
min = 0;                 
max = 40;
delay=.01;

%function variables
time=0;
data1=0;
data2=0;
data3=0;
count=0;

%plot set up
plotGraph=plot(time,data1,'-r' );
hold on                            
plotGraph1=plot(time,data2,'-b')
plotGraph2=plot(time, data3,'-g' )
title(plotTitle,'FontSize',15);
xlabel(xLabel,'FontSize',15);
ylabel(yLabel,'FontSize',15);
plotGrid = 'on'; 
legend(legend1,legend2,legend3);
axis([yMin yMax min max]);
grid(plotGrid);


tic
%loop
while ishandle(plotGraph) %when plot is active will run until plot is closed
    dat1=readTemperature();%unkown pin
    dat2=pressure;%unkown pin
    dat3=altitude;%unkown pin
    count=count+1;
    time(count)=toc;
    
    data1(count)=dat(1);
    data2(count)=dat(2);
    data3(count)=dat(3);
    set(plotGraph,'XData',time,'YData',data);
    set(plotGraph1,'XData',time,'YData',data1);
    set(plotGraph2,'XData',time,'YData',data2);
    axis([0 time(count) min max]);
    %Update the graph
    pause(delay);
    
end
delete(a);

Here is the arduino code.

[Diego Portillo]

did you had to use simulink? if so can you post it, please. Also, im getting a error on line 35

Error in #### (line 35)

dat1=readTemperature();%unkown pin