table arrays store column-oriented or tabular data, such as columns from a text file or spreadsheet.
T: 100×6 table Description: Table of Data for 100 Patients Variables: PatientName: string (Patient name) Age: double (yr) Height: double (in) Weight: double (lbs) Smoker: logical (34 true, True if patient smokes) BP: 2-column double (mm Hg, Systolic and diastolic readings) S...
Specify the table variables as a numeric array. Convert the numeric array allVars to a string array. Create a 1-by-5 string array by appending each element to "Reading". Rename all of the variables by using the renamevars function. allVars = 1:width(T); newNames = append("Reading",...
Add the names of patients from the workspace variable LastName before the first table variable in T. You can specify any location in the table using the name of a variable near the new location. Use quotation marks to refer to the names of table variables. However, do not use quotation ...
Add Variable to Table Using Dot Notation Once you have created a table, you can add a new variable at any time by using dot notation. Dot notation refers to table variables by name, T.varname, where T is the table and varname is the variable name. This notation is similar to the no...
T2 = mergevars(T1,vars) combines the table variables specified by vars to create one multicolumn variable in T2. All other variables from T1 are unaltered. You can specify variables by name, by position, or using logical indices. For example, if T1 has variables named var3 and var5, th...
T2 = convertvars(T1,vars,dataType) converts the specified variables to the specified data type. The input argument T1 can be a table or timetable. While you can specify dataType as the name of a data type, you also can specify it as a function handle. In that case, it is a handle...
varfun()-addsa Name/Value pair to the original method, i.e.'RenameVariables' - false/true(default). Does not force you to change the variable names as the native version; renameVarNames()-newmethod that renames variable names; convertColumn()-newmethod that changes the class of each colu...
Example:T2 = removevars(T1,2)removes the second table variable. Example:T2 = removevars(T1,'Date')removes the table variable namedDate. Example:T2 = removevars(T1,{'Latitude','Longitude','Elevation'})removes the table variables namedLatitude,Longitude, andElevation. ...
Import Data as Table You can use the readtable function to read the data from a file and import it as a table. Import the data in messy.csv using the readtable function. To read text data into table variables that are string arrays, use the TextType name-value argument. To treat spec...