Video – Aptech

Get Started with Panel Data in GAUSS (Video)

Eric — Wed, 17 Apr 2024 16:00:50 +0000

Introduction

In this video, you'll learn the basics of panel data analysis in GAUSS. We demonstrate panel data modeling start to finish, from loading data to running a group specific intercept model.

This video is available, along with all GAUSS videos, on our GAUSS YouTube Channel. Be sure to explore all our GAUSS videos and subscribe to the channel to get the latest videos as they are released.

Summary and Timeline

You'll see firsthand how to:

Load and verify panel data.
Merge data from different sources.
Convert between wide and long form panel data.
Explore and clean data.
Create panel data plots.
Prepare panel data for estimation.
Estimate a model with group-specific intercepts.

Timeline

0:41 Set the current working directory.
1:03 Load panel data from an Excel file.
5:32 Merging data from different sources.
06:53 Preliminary data cleaning.
08:40 Panel data plots.
11:12 Stationarity testing.
11:56 Convert long form to wide form panel data.
14:49 Estimate a model with group-specific intercepts.

Additional Resources

New Video! Get Started with Choice Modeling in GAUSS

Eric — Mon, 08 Apr 2024 16:32:03 +0000

Introduction

In this video, you'll learn the basics of choice data analysis in GAUSS. Our video demonstration shows just how quick and easy it is to get started with everything from data loading to discrete data modeling.

Summary and Timeline

You'll see firsthand how to:

Load and verify survey data.
Compute descriptive statistics.
Merge data from different sources.
Create basic scatter and frequency plots.
Fit a basic probit model.

Timeline

0:52 Load and verify CSV survey data.
2:53 Change the base case of a categorical variable.
5:24 Merge dataframes.
06:40 Descriptive statistics.
09:25 XY and frequency plots.
11:11 Create an indicator variable from a categorical choice variable.
12:25 Create a categorical variable and set the labels for the levels.
14:47 Estimate a probit model.

Additional Resources

How to Run the Fourier LM Test (Video)

Eric — Fri, 24 Sep 2021 15:05:04 +0000

Learn everything you need to know to run the Fourier LM unit root test with your data and interpret the results.

Video chapters:

Additional Resources

How to Run the Maki Cointegration Test (Video)

Eric — Mon, 14 Jun 2021 22:03:53 +0000

Learn everything you need to know to run the Maki cointegration test with your data and interpret the results.

Video chapters:

Additional resources:

Easy and Fast Data Management in GAUSS 21

aptech — Tue, 08 Dec 2020 18:45:41 +0000

Introduction

The new dataframes and interactive data management in GAUSS 21 will make your work more enjoyable and save you hours of time.

New GAUSS dataframes make data easy to read...

...and make code and results clearer

>> // Load data
>> lending = loadd("lending.csv");
>>
>> // Estimate in one line
>> call olsmt(lending, "int_rate ~ .");

                                            Std.           
Variable                     Estimate      Error   t-value 
-----------------------------------------------------------

CONSTANT                       11.988     1.298      9.235 
term: 60_months                 3.987    0.6446      6.184 
annual_inc                 -0.0092475  0.005473     -1.689 
purpose: credit_card         -0.12827     1.320   -0.09714 
         renewable_energy     -1.9637     4.229    -0.4643 
         small_business        3.9262     1.799      2.182 
         vacation             -0.7038     1.809    -0.3890

Questions? Get an answer from our experts or request a quote!

Customize your date display

Reference your data by name

// Index by variable name
auto = auto[., "mpg" "rep78"];

// Select if position is center
nba = selif(nba, nba[., "Pos"] .$== "C");

// Set base category
yarn = setBaseCat(yarn, "low","yarn_length");

See your data your way with GAUSS dataframes

>> print lending[1:5,.];

        int_rate             date          purpose
       12.620000       2014-12-14      credit_card
       9.4400000       2014-05-18             auto
       10.420000       2014-02-01          medical
       15.050000       2014-04-05      credit_card
       9.9300000       2014-05-17      credit_card

✔ Missing value support.

✔ Simpler data cleaning.

✔ Categorical, date, string and numeric data.

✔ Clear data view and reporting.

✔ Reference by name or traditional matrix indexing.

✔ Compatible with matrices and older code and application modules.

✔ Programmatic and interactive support:

Category base case, labels and order.
Date display format.

Easy and fast interactive data management

Interactive data import

✔ One-click import and preview.

✔ Select and rename variables.

✔ CSV, Excel, SAS, Stata, SPSS files.

✔ Live preview.

✔ Automatic code generation.

✔ Manage categories.

✔ Specify values to import as missing.

View, rename, and reorder categorical variables

Intuitive interactive controls to:

Set the base case.
Rename labels.
Set category order.

Import dates in any format

Non-standard date formats are no problem.

Auto-detects 30 formats.
Specify any custom format.
Any characters.
Any order.

Request a free trial!

Interactive data filter

✔ Simple dropdown options.

✔ Handles missing data.

✔ Create multiple filters.

✔ Live preview.

✔ Automatic code generation.

✔ Intuitive date filtering.

✔ Available for data before and after loading.

Find out how much time GAUSS 21 can save you!

Ask a question Request pricing

GAUSS Basics 7: Conditional statements

aptech — Wed, 26 Jun 2019 16:47:01 +0000

Introduction

This seventh video in the GAUSS Basics series will show you how to use the if, else, elseif and endif keywords to create code with conditional statements.

The video will demonstrate several examples and show a few common errors you might run into.

Timeline

0:00 Introduction.
0:12 If.
1:33 Elseif.
2:10 Logical operators.
3:10 Errors.
4:07 Conclusion.

The GAUSS Basics Video Series

GAUSS Basics 6: Logical and relational operators

aptech — Tue, 21 May 2019 00:38:08 +0000

Learn how to use the logical and relational operators in GAUSS. These operators include:

and, not, or, xor, less-than, less-than or equal, greater-than, greater-than or equal, equal

You will also see these operators used to select specific rows of a matrix with logical indexing.

Timeline

0:00 Introduction.
0:21 Logical operations.
2:15 Relational operations.
3:59 Application: Selecting rows.

The GAUSS Basics Video Series

GAUSS Basics 5: Element-by-element conformability

aptech — Thu, 25 Apr 2019 21:56:57 +0000

Introduction

Learn how the GAUSS element-by-element conformability rules help you to create code which is compact, elegant and fast!

Applies to functions as well as matrices and vectors.
Avoids the need for loops in many cases.

Important concepts to help you get the most from GAUSS.

Timeline

0:55 Subtract matrices.
1:27 Mean of random variable.
2:37 Row and column vector operations.

The GAUSS Basics Video Series

GAUSS Basics 4: Matrix operations

aptech — Mon, 08 Apr 2019 17:09:44 +0000

Introduction

This fourth video in our GAUSS Basics series will explain how to perform:

Matrix operations.
Element-by-element operations on matrices.

Timeline

0:00 Introduction.
0:14 Matrix multiplication.
1:01 Elementwise operations.

The GAUSS Basics Video Series

GAUSS Basics 3: Introduction to matrices

aptech — Mon, 25 Mar 2019 18:19:14 +0000

Introduction

This third video in our GAUSS Basics series will show you how to:

Create matrices.
Find their size.
Access specific elements with indexing.
Grow them with matrix concatenation.

Timeline

0:00 Matrix declarations.
1:40 Matrix Indexing.
2:48 Matrix Concatenation.