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Christopher Stapels


MathWorks

31 total contributions since 2017

ThingSpeak Documentation Writer
and LCH enthusiast

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Christopher Stapels's Badges

  • Knowledgeable Level 1
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  • Revival Level 1
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Answered
matlab and thingspeak manipulate data before plotting
I would recommend setting up a new channel. Then you can set a react to call a MATLAB analysis to write the data to the new cha...

4 Monate ago | 0

| accepted

Channel


Battery Voltage
two six volt bettery packs in paralell in the basement

4 Monate ago

Channel


WorkTime

5 Monate ago

Channel


Soil Monitor Data Summary
Time aligned data

10 Monate ago

Channel


Daily Stock Data
Google Stock values compiled daily.

10 Monate ago

Channel


Home Temp Time

11 Monate ago

Solved


A Simple Tide Gauge with MATLAB
*&#8767 &#8767 &#8767 &#8767 &#8767 &#8767 &#8767 &#8767* You are standing in a few inches of sea water on a beach. You a...

11 Monate ago

Solved


5 Prime Numbers
Your function will be given lower and upper integer bounds. Your task is to return a vector containing the first five prime numb...

11 Monate ago

Answered
I want to calculate the derivative of a channel. Can you suggest the best way to do so.
One way would be to use an instance of the React App to test if field 2 has a value in it, perhaps "if field2 < 0". Then have t...

11 Monate ago | 0

Channel


MyCar Count Channel

etwa ein Jahr ago

Answered
Thingspeakwrite error when using string array
When you write string data to ThingSpeak, it generally wants to have a cell array. You should not usually need to do the Strin...

etwa ein Jahr ago | 0

| accepted

Channel


Lights1
kitchen lights control

etwa ein Jahr ago

Solved


Make an awesome ramp for a tiny motorcycle stuntman
Okay, given a vector, say v=[1 3 6 9 11], turn it into a matrix 'ramp' like so: m=[1 3 6 9 11; 3 6 9 11 0; 6 9 ...

etwa ein Jahr ago

Solved


Back to basics 21 - Matrix replicating
Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, generate an output matrix that consists o...

etwa ein Jahr ago

Answered
No more plot although no errors
As of December 14, your channel has recent values in it. I think the NaN values between real values are making the plot scale u...

etwa ein Jahr ago | 0

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HomeTemp1

etwa ein Jahr ago

Channel


Community Scores

etwa ein Jahr ago

Solved


Pernicious Anniversary Problem
Since Cody is 5 years old, it's pernicious. A <http://rosettacode.org/wiki/Pernicious_numbers Pernicious number> is an integer w...

etwa ein Jahr ago

Solved


Energy of a photon
*&#9883 &#9762 &#9883 &#9762 &#9883 &#9762 &#9883* Given the frequency F of a photon in giga hertz. Find energy E of this...

etwa ein Jahr ago

Solved


How to subtract?
*&plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn* * Imagine you need to subtract one...

etwa ein Jahr ago

Channel


Twitter Data

mehr als ein Jahr ago

Channel


IPT Results

mehr als ein Jahr ago

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Weather Text

mehr als ein Jahr ago

Channel


Office Temperature

mehr als ein Jahr ago

Channel


Stock Value Data
Prices for Google Stock every 5 minutes during the times when the market is open

mehr als ein Jahr ago

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Soil Monitor
Plant in my officre

mehr als ein Jahr ago

Channel


import test

mehr als ein Jahr ago

Channel


Time

fast 2 Jahre ago

Channel


CheerSurfer
Cheer Lights World Surfing Game

fast 2 Jahre ago

Channel


Poll Results

fast 2 Jahre ago

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