Thingspeak: problem with a bar graph

18 次查看（过去 30 天）
Fabrice Auzanneau
Fabrice Auzanneau 2020-3-21
Hi
I'm trying to plot some measured values on bar graphs, but it seems that only a few values are plotted, not all of them.
Here is the code:
readChannelID = ***;
fieldID = 1;
readAPIkey = '****';
%% Read data %%
month = 3;
day = 21;
range = [datetime(2020,month,day,0,0,0),datetime(2020,month,day,23,59,59)];
[data,time] = thingSpeakRead(readChannelID,'Fields',1,'DateRange',range,'ReadKey', readAPIkey);
%% Vizualize data
hours = datetime(0,0,0,hour(time)+1,minute(time),second(time));
hours
data
bar (hours,data,'r');
The graph is plotted but the maximum plotted value is around 25, and the maximum value I get when displaying the value lists is 58.
The last values displayed for data are:
5
5
5
6
5
20
13
15
13
48
27
26
58
19
6
12
It seems only one value out of 5 is plotted. What did I miss?
Thanks for your help

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