MATLAB Programming Fundamentals - MathWorks

Type of

Indexing

Result Syntax Rows Variables

Dot Indexing extracte

d data

T.var

T.

(varindex)

All rows One variable, specified

by var (a name) or by

varindex (a number)

Dot Indexing extracte

d data

T.var(rows

)

One or more rows,

specified by rows

One variable, specified

by var (a name)

Variables

Property

extracte

d data

T.Variable

s

All rows All variables when they

can be horizontally

concatenated into an

array

Subscripting

by Variable

Type

table S =

vartype(ty

pe);

T(rows,S)

One or more rows,

specified by rows

One or more variables

of the specified type

(for example,

'numeric')

Subscripting

by Variable

Type

extracte

d data

S =

vartype(ty

pe);

T{rows,S}

One or more rows,

specified by rows

One or more variables

of the specified type

(for example,

'numeric')

How to Specify Rows to Access

When indexing into a table with parentheses, curly braces, or dot indexing, you can
specify rows as a colon, numeric indices, or logical expressions. Furthermore, you can
index by name using a single row name or a cell array of row names.

A logical expression can contain curly braces or dot indexing to extract data from which
you can define the subset of rows. For example, rows = T.Var2>0 returns a logical
array with logical true ( 1 ) for rows where the value in the variable Var2 is greater than
zero.

How to Specify Variables to Access

When indexing into a table with parentheses or curly braces, you can specify vars as a
colon, numeric indices, logical expressions, a single variable name, a cell array of variable
names, or as the output of the vartype function..

Access Data in a Table