What is Data Merging?

Data merging is the process of combining two or more data sets into a single data set. Most often, this process is necessary when you...

4 Ways to Improve Customer Feedback Metrics

Increasing customer satisfaction and improving Net Promoter Scores is something every business should strive to do. Here are four data-driven approaches to improve your customer...

How to Edit a Displayr Document in Q

If you have a license for Displayr's desktop sister, Q, you may sometimes wish to add some things to your Displayr document from within Q....

How to Get your Data Sparkling Clean – Fast!

Do you despise data cleaning? You’re not alone. Too many researchers find data cleaning to be time-consuming, tedious, and tiring. However, starting your analysis with...

How to Recode into Existing or New Variables

This post shows how to use Displayr to replicate the standard SPSS functions of Transform > Recode into Same Variables and Transform > Recode into...

How to do K-means Cluster Analysis in Displayr

The k-Means cluster analysis algorithm is a method for grouping similar cases into groups, or clusters. The final clusters will be different from each other,...

RECENT POSTS

What is Sampling Error?

When data is randomly sampled from a population, the randomness with which observations are selected from the population ensures that the value of statistics computed...

How to Extract Column Comparison Letters into a Table Automatically in Q using R

In recent posts we’ve discussed how you can reference source tables using R in Q to manipulate the statistics into a new custom table. In…

How to Embed a Video in a Displayr Dashboard

You can have a video playing on a page in Displayr, as it’s very simple to set up. The video needs to be hosted on…

Building an Interactive Globe Visualization in R

This post describes how to use the threejs package to plot data on a globe, allowing rotation and zoom. Location markers are added as lines,...

Comparing your Results to the Previous Period in Q

Q has a terrific feature whereby it can automatically compare statistics against the previous period (of time). This is great for tracking scenarios, when you…

Tips for Recoding Missing Values in Q

Missing values in a data set are “blank” values. They are normally associated with survey skips. Those who skip a variable/question receive a missing value. Missing…

How to create a HEX color palette for Displayr

While most visualizations have built-in color palettes, more often than not you'll want or need to customize them. Having a color palette set up BEFORE...

Using Q to Make a Snake Plot in PowerPoint

Snake plot is the term used to describe a line chart on its side. So rather than the lines running left-right (x-axis) they run up-down (y-axis)

How to Control Who Can Edit Documents in Displayr

When you have a larger set of people at your organization using Displayr, it can become necessary to define which people are allowed to work...

Focusing the Results of Correspondence Analysis in Displayr

Correspondence analysis is often used to visualize a table of data. The goal is to represent as much information as possible, as accurately as possible. However,...

How to Make a Histogram in Q

Histograms may look like bar charts, but they plot data in an entirely different way. While bar charts depict the frequency of occurrences, or averages,...

What is a Latent Variable?

A latent variable is a variable that is inferred using models from observed data. For example, in psychology, the latent variable of generalized intelligence is...

Decision Trees Are Usually Better Than Logistic Regression

If you’ve studied a bit of statistics or machine learning, there is a good chance you have come across logistic regression (aka binary logit). It…

How to Interpret Logistic Regression Coefficients

This post describes how to interpret the coefficients, also known as parameter estimates, from logistic regression (aka binary logit and binary logistic regression). It does…

What is Feature Engineering?

Feature engineering refers to a process of selecting and transforming variables when creating a predictive model using machine learning or statistical modeling (such as deep...

Feature Engineering in Displayr

Feature engineering refers to the process of manipulating predictor variables (features) with the goal of improving a predictive model. In this post I outline some of the…

Feature Engineering for Categorical Variables

When creating a predictive model, there are two types of predictors (features): numeric variables, such as height and weight, and categorical variables, such as occupation…

How to do Logistic Regression in Displayr

In this post I describe how to perform a logistic regression in Displayr. I illustrate the basics using a data set on customer churn for...

Feature Engineering for Numeric Variables

When building a predictive model, it is often practical to improve predictive performance by modifying the numeric variables in some way. In statistics, this is…

How to Interpret Logistic Regression Outputs

Logistic regression, also known as binary logit and binary logistic regression, is a particularly useful predictive modeling technique, beloved in both the machine learning and the statistics communities. It…

How to Create a Heatmap in Q

Heatmaps are a powerful visualization for depicting the distribution of data. Unlike traditional charts, like bar charts or pie charts, heatmaps are represented by matrices....

How to Create a Correlation Matrix in R

A correlation matrix is a table of correlation coefficients for a set of variables used to determine if a relationship exists between the variables. The…

How to Make a Column Chart in Q

The most standard way for graphically representing categorical data is with a column chart. The advantage of using column charts is that you can easily...

How to Create a Density Plot in Q

A density plot is a smoothed histogram. Like the histogram, they are used to visualize the distribution of numeric values. A smoothing algorithm is applied...

How to Make an Area Chart in Excel

An area chart is based on a line chart, with the area between the line and the x-axis colored to illustrate volume. In this post,...

How to Make an Area Chart in R

Area charts are useful for visualizing one or more variables over time. We can create area charts in R using one of the many available...

What is Non-Sampling Error?

Non-sampling error refers to any deviation between the results of a survey and the truth which are not caused by the random selecting of observations....

How to Make a Heatmap in Excel

Any large table of data with lots of numbers becomes difficult to read. As a human, you'd have to process each number and then compare...

How to Calculate Sentiment Scores for Open-Ended Responses in Q

Sentiment analysis is a way to quantify the feeling or tone of written text. In a survey context, this is a useful technique for gauging...

How to Make a Density Plot in Displayr

Density plots can be a great tool for trying to understand the shape of the distribution of some data. They do not plot the data...

How to do Simple Table Manipulations with R Using Displayr

R is not just a tool for the data science elite. It is an immensely powerful tool that can be used by market researchers in...

How to Export Updatable Text to PowerPoint from Q

Most Q users would be familiar with Q's PowerPoint export options. The normal option allows you to export your tables to PowerPoint and create charts...

How to Make a Geographic Map in Q

Geographic map visualizations are a great way to show comparative values across countries, states, or regions. The geographic map shades the color of each location...

5 Alternatives to the Default R Outputs for GLMs and Linear Models

One of the ironic bits of using R is that even though it is often described as being a great tool for data visualization, most...

How to do Traditional Correspondence Analysis in Q

Correspondence analysis is a data analysis technique which summarizes the patterns in a table of data as a visualization. Tables with more than a handful...

How to Create a Heatmap in Displayr

Heatmaps are a great way to pick up patterns in tables of data. The heatmap represents the table by shading the cells according to the...

What is Survey Data Processing?

Survey data processing is the crucial step that follows the collection of any survey data. The aim of data processing is to manipulate or transform...

How to Create a Box Plot in Displayr

Box plots are used to display the median, interquartile range, and outliers for a set of numeric data. They let you focus on the characteristics...

What is a Conversion Rate?

A conversion rate is the percentage of people or companies that move from one stage to the next stage in a process. Common examples include...

How to Make a Radar Chart in Excel

Radar charts are a great way to visualize two-dimensional data and show the differences between sub-groups. Think of them as a line chart that's been...

How to Create a Pie Chart in Q

One of the most basic and widely used visualizations is the pie chart which has been around since 1801! Pie charts are very effective when...

Extracting Results from Tables as R Outputs

This post describes how to extract results from tables in Displayr. The results are extracted as R Outputs. These R Outputs can then either be...

What is a Model?

A model is a usable description of how a system is believed to work. It is a simplification of reality, with unnecessary detail excluded. Good...

Simple Web Scraping in Q Using R

Web scraping (also referred to as web data extraction or web harvesting), is the process of using software to fetch the contents of a web...

How to Create a Bar Chart in Excel

Microsoft Excel has been used to create charts and visualizations for as long as (or longer than) any other application being used today. In fact,...

How to Make a Pie Chart in R

Pie charts are the classic choice for showing proportions for mutually-exclusive categories. There are various packages available for creating charts and visualizations in R. One...

How to Make a Radar Chart in Q

Tables of two dimensional data can be hard to read if there're a lot of cells in them. Picking out trends and spotting differences over...

How to Calculate Jaccard Coefficients in Displayr Using R

Jaccard coefficients, also know as Jaccard indexes or Jaccard similarities, are measures of the similarity or overlap between a pair of binary variables. In Displayr,...

How to Plot Data on an Interactive Globe in Displayr

If you have geographic data, you can use a bit of R code to plot it on an interactive globe. This visualization is completely customizable...

How to Make an Area Chart in Displayr

An area chart is based on a line chart, with the area between the line and the x-axis colored to illustrate volume. In this post,...

How to Transfer Text in Outputs to the GUI in Displayr

Sometimes when using Displayr, you have text in an output, and you want to enter it into a field in the Displayr GUI. This post...

Combo Boxes (Controls) With Dynamic Lists in Displayr

Combo Boxes (controls) can be used in Displayr to allow users to select data and other outputs of interest. Sometimes it is useful to create...

How to Make a Histogram in Excel

Any data that's been collected on a numeric scale or as a continuous measurement can be represented as a histogram. These constitute a fairly traditional...

What is a Standard Error?

Standard error (often shortened to SE) is the estimated standard deviation of the sampling distribution of a parameter. It is a way of quantifying the...

How to Make a Radar Chart in Displayr

Large tables with lots of cells can be difficult to interpret without visualizing the information first. Radar charts are a great way to show which...

Geocoding IP addresses in Q

Most communication between users and websites requires IP addresses. However, when profiling web traffic it is more useful to consider where users are physically located....

How to Create a Pie Chart in Excel

Creating a pie chart is extremely easy using Microsoft Excel. In this article, we'll look at how to create a basic pie using Excel.

Seamlessly Analyze and Visualize your SurveyMonkey Data

SurveyMonkey is the world's largest online survey tool. They help millions of users create and publish online surveys in minutes. While creating and sharing surveys...

Comparing Choice Models and Creating Ensembles in Displayr

There are a variety of different models available in Displayr to perform Choice Modeling. In fact, Displayr is the best choice modeling software in world.…

How to Create a Pictograph Bar Chart in Q

A pictograph bar chart uses multiple icons to represent the values in each bar. Pictograph bar charts can make a visualization more recognizable and interesting.…