% Channel ID to read data from readChannelID = Your channel ID; % Angle Field ID AngleFieldID = 1; % RSSI Field ID RSSIFieldID = 2; readAPIKey = 'Your API key'; data = thingSpeakRead(readChannelID,'Fields',[AngleFieldID RSSIFieldID], ... 'NumPoints',100, ... 'ReadKey',readAPIKey); % Read AngleData and change to radians AngleData = data(:,1); AngleData= deg2rad(AngleData); % Read RSSIData and add 100 RSSIData = data(:,2); RSSIData =100+RSSIData; % Visualize the data polarplot(AngleData,RSSIData);