What does 'NumPoints' means? What does it do to the variable?
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[pressure,time] = thingSpeakRead(readChId,'Fields',1,'NumPoints',100);
Hi everyone, I'm using this variable in a program code and I'd like to know what expression 'NumPoint' does to it. What I want to do is to read a signal now at timeline and another point a few minutes before the first one to calculate how much litters a machine is produzing tax production. How could I do that?
PS: This is the first time I'm using any kind of programming language
1 个评论
Star Strider
2018-3-19
Please provide a link to the function you’ve quoted. That saves us the effort of searching for it.
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Walter Roberson
2018-3-19
0 个投票
It does what it says on the box ;-)
"Number of data points to extract, specified as a comma-separated pair consisting of 'NumPoints' and a numeric value. The number of points or rows of data is counted from the time the command is issued. The ThingSpeak server limits the number of points returned to a maximum of 8000."
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2018-3-19
2018-3-19
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