MATLAB Programming Fundamentals - MathWorks

Add, Delete, and Rearrange Table Variables

This example shows how to add, delete, and rearrange column-oriented variables in a

table. You can add, move, and delete table variables using the addvars, movevars, and

removevars functions. As alternatives, you also can modify table variables using dot

syntax or by indexing into the table. Use the splitvars and mergevars functions to

split multicolumn variables and combine multiple variables into one. Finally, you can

reorient a table so that the rows of the table become variables of an output table, using

the rows2vars function.

You also can modify table variables using the Variables Editor.

Load Sample Data and Create Tables

Load arrays of sample data from the patients MAT-file. Display the names and sizes of

the variables loaded into the workspace.

load patients

whos -file patients

Name Size Bytes Class Attributes

Age 100x1 800 double

Diastolic 100x1 800 double

Gender 100x1 12212 cell

Height 100x1 800 double

LastName 100x1 12416 cell

Location 100x1 15008 cell

SelfAssessedHealthStatus 100x1 12340 cell

Smoker 100x1 100 logical

Systolic 100x1 800 double

Weight 100x1 800 double

Create two tables. Create one table, T, with information collected from a patient

questionnaire and create another table, T2, with data measured from patients. Each table

has 100 rows.

T = table(Age,Gender,Smoker);

T2 = table(Height,Weight,Systolic,Diastolic);

Display the first five rows of each table.

head(T,5)

9 Tables