nipy_4dto3d command not found

In this troubleshooting guide we learn how to fix nipy_4dto3d command not found error message

Introduction

When you run more command in linux terminal / console, you get the following error message

nipy_4dto3d: command not found

or when using sudo you get the following error message

sudo: nipy_4dto3d: command not found

In Ubuntu nipy_4dto3d is provided by python3-nipy package.

python3-nipy is:

NiPy is a Python-based framework for the analysis of structural and functional neuroimaging data. It provides functionality for

General linear model (GLM) statistical analysis
Combined slice time correction and motion correction
General image registration routines with flexible cost functions, optimizers and re-sampling schemes
Image segmentation
Basic visualization of results in 2D and 3D
Basic time series diagnostics
Clustering and activation pattern analysis across subjects
Reproducibility analysis for group studies

To fix this problem, we can install more using the command below.

sudo apt-get -y install python3-nipy

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install python3-nipy.

sudo apt -y install python3-nipy

Or if you have aptitude installed you can use the following command.

sudo aptitude install python3-nipy

In this tutorial we learn how to fix nipy_4dto3d command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.