Index in position 2 exceed array bounds when creating email

Hi Team

I need some help on this error, How do i improve this issue?

data = thingSpeakRead(929272, "NumMinutes", 100);
aveTemp = mean(data(:,2)); // This is the line for an error "Index in position 2 exceeds array bounds"
apiKey = 'O6P4N8AVZWKNGK5U';
alertURL = "https://api.thingspeak.com/alerts/send";
options = weboptions("HeaderFields",["ThingSpeak-Alerts-API-Key", apiKey]);
alertBody = sprintf("The temperature is %0.2fF.", aveTemp);
alertSubject = sprintf("! Temperature exceeded 60.0F!");

if avg_temperature > 60.0
    webwrite(alertURL, "body", alertBody, "subject", alertSubject, options);
end

[KALYAN ACHARJYA]

Can you share ?

>>whos data 

[Mthunzi Booi]

the issue was on line 2, had to change my variable object and function name to be as this logic below.

avg_temperature = size(data

[KALYAN ACHARJYA]

Just run the code, and just type the following in command window then "Enter" key

>>whos data 

Please share the message you will receive.

[Christopher Stapels]

@Mthunzi There is a slight error in the doc, thanks for catching that.