timetk 2.0.0: Visualize Time Series Data in 1-Line of Code
Written by Matt Dancho on June 5, 2020
I’m ECSTATIC 😃 to announce the release of
timetk version 2.0.0. This is a monumental release that significantly expands the functionality of
timetk to go WAY BEYOND the original goals of the package. Now, the package is a full-featured time series visualization, data wrangling, and preprocessing toolkit.
Forecasting and Time Series Software Announcements
Articles on the
timetk forecasting and time series ecosystem.
- Introducing Modeltime Ensemble: Time Series Forecast Stacking
- Introducing Modeltime: Tidy Time Series Forecasting using Tidymodels
- Timetk 2.0.0: Visualize Time Series Data in 1-Line of Code
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I’ll go into detail about what you can do in 1-line of code, and I have several more articles coming on how to use several of the new features. But first a little history…
Time series has been a passion project for me since my days of forecasting sales and economic data for a manufacturing company I worked for. My one gripe has always been that I had to use 50 different packages (
dplyr, etc) made by 50 different people to perform common data wrangling and visualization analyses.
timetk solves this problem by making a consistent approach to visualize, wrangle, and preprocess time series data inside the
With advancements in tidy-time series, the combination of the
tidyverse and time series is an amazingly powerful concept. I’m not the first one to think of this idea. In fact, Davis Vaughan created
tibbletime and the “tidyverts” (Rob Hyndman, Earo Wang, and Mitchell O’Hara-Wild) have created a whole forecasting and data wrangling system using a
tsibble data structure.
These are amazing packages, but they solve different needs.
tibbletime focused on data wrangling. The
tidyverts focused on forecasting at scale using ARIMA and company.
My needs are different. I need:
- Interactive visualizations for easy data exploration
- Time series data wrangling for doing time series summarization, filtering, padding, and simple date-based arithmetic
- Transformations and preprocessing that fit into the NEW
tidymodelsecosystem (so I can do Time Series Machine Learning in addition to ARIMA forecasting)
So I created
timetk version 2.0.0 to solve these needs.
Here’s the new mission, and what you can do in 1-line of code with
timetk >= 2.0.0:
To make it easy to visualize, wrangle and preprocess time series data for forecasting and machine learning prediction.
What Can You Do in 1-Line of Code?
First step, load these R packages.
Investigate a time series…
This is fun! In 1 line of code we can visualize a dataset.
So what did we just do?
We are exploring
taylor_30_min, which is a classic electricity-demand time series that comes from one of my all-time-favorite packages,
forecast. It’s been updated to the
tibble structure with a time stamp column called “date” and a value column called “value”.
We can plotted it using
plot_time_series(). I set
.interactive = FALSE to return a
ggplot (I’ll do that for all of the visualizations in this tutorial). The default is to return an interactive
plotly graph, which is great for
rmarkdown HTML documents, and super powerful for exploring time series (zooming, panning, etc).
Want the an interactive
Just try this code and explore the
Let’s pick up the pace. Here’s some more amazing visualization capabilities!
We can visualize anomalies for multiple time series groups. Here we use
group_by() to group the time series. Note this is a different dataset,
Make a seasonality plot…
We can get seasonality plots.
Inspect autocorrelation, partial autocorrelation (and cross correlations too)…
And we can search the Autocorrelation and Partial Autocorrelation.
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- Time Series Preprocessing, Noise Reduction, & Anomaly Detection
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