Prepare and Analyze Data

Filter, transform, and respond to data in MATLAB^®

Use the MATLAB Analysis app to prepare, filter, and analyze data such as calculating average humidity, calculating dew point, and eliminating data outliers from a ThingSpeak™ channel. ThingSpeak allows you to use MATLAB to analyze and visualize your data. The analysis and visualization apps provide template code to assist you with basic operations on historic or live data. These tutorials take you step by step through each code template. Use code template tutorials to get started with ThingSpeak. Use the apps to convert from one unit to another, compare different or similar data on the same plot, or visualize the statistical distribution of your data.

You can Add Functions to Scripts (MATLAB) in the MATLAB Analysis and MATLAB Visualizations apps to allow for modular coding. In addition to the built-in MATLAB functions, you can also use functions from the toolboxes mentioned in Access Add-Ons in MATLAB Analysis and Visualization Apps.

Functions

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ThingSpeak Analysis in MATLAB

`thingSpeakRead`	Read data stored in ThingSpeak channel
`thingSpeakWrite`	Write data to ThingSpeak channel

Topics

Generate MATLAB Code

MATLAB Analysis App
Analyze the data in a channel.

Prepare Data

Regularize Irregularly Sampled Data
Update timestamps of data in a ThingSpeak™ channel to remove irregularity.
Identify Irregularly Sampled Data
Identify irregularly sampled data in a ThingSpeak channel.
Aggregate Data in ThingSpeak Channel
Collect and process data in a ThingSpeak channel

Analyze Historical Data

Calculate and Display Average Humidity
This example demonstrates how to read data from a channel, analyze the data, and display the result.
Calculate High and Low Temperatures
This example demonstrates how to read data, identify certain elements, and display the results.
Remove Outliers from Wind Speed Data
This example shows how to read data from a public channel, modify the data, and display select elements.

Analyze Live Data

Calculate Wind Chill and Update Channel
This example shows how to read data from a public channel, analyze the data, and schedule the code to run at regular intervals.
Read Live Web Data for Vessels at the Port of Boston
This example demonstrates how to scrape the latest live data from a website and display it.
Convert Temperature Units
This example shows how to read data, perform a calculation using the data, and display the result.
Read ThingSpeak Data and Predict Battery Discharge Time with Linear Fit
Read data for regression and prediction

Related Information

Featured Examples

Regularize Irregularly Sampled Data

Update timestamps of data in a ThingSpeak™ channel to remove irregularity.

Open Live Script

Identify Irregularly Sampled Data

Identify irregularly sampled data in a ThingSpeak channel.

Open Live Script

Aggregate Data in ThingSpeak Channel

Collect and process data in a ThingSpeak channel

Open Script

IoT-Based Temperature Monitoring Using ThingSpeak and Arduino Hardware

Create a ThingSpeak™ channel and use MATLAB® functions to collect the temperature data from a BMP280 sensor connected to your Arduino® board, and then use MATLAB Analysis in ThingSpeak to analyze the maximum and minimum temperature. This example also shows you how to set up an email alert if the room temperature exceeds a threshold value, by using MATLAB functions in ThingSpeak.

(MATLAB)