129 views (last 30 days)
Show older comments
Luca Re on 31 May 2023
Commented: Walter Roberson on 1 Jun 2023
Sistemi_check=table(string(K_Nome),K_idxInstrument');
LastName = {"Sanchez";"Johnson"};
Sistemi_check.Properties.RowNames=LastName;
>> check_Instrument
Error using .
The RowNames property must be a string array or a cell array, with each name containing one or more
characters.
Error in check_Instrument (line 22)
Sistemi_check.Properties.RowNames=LastName;
2 Comments Show NoneHide None
Show NoneHide None
Walter Roberson on 31 May 2023
Direct link to this comment
https://connections.mathworks.com/matlabcentral/answers/1976449-assign-name-row-to-table#comment_2766574
You are trying to assign exactly two row names, but there needs to be one row name entry for each row.
You have at least 30 rows in your table, so you need at least 30 row-name entries.
Luca Re on 31 May 2023
Direct link to this comment
https://connections.mathworks.com/matlabcentral/answers/1976449-assign-name-row-to-table#comment_2766579
Edited: Walter Roberson on 1 Jun 2023
ok i want to rename columns in a table..is correct to use VariableNames? i try it but i get an error
Sistemi_check=table(string(K_Nome),K_idxInstrument');
LastName = {"Sanchez";"Johnson"};
Sistemi_check.Properties.VariableNames=LastName;
Error using .
The VariableNames property is a cell array of character vectors. To assign multiple variable names,
specify nonempty names in a string array or a cell array of character vectors.
Error in check_Instrument (line 22)
Sistemi_check.Properties.VariableNames=LastName;
Sign in to comment.
Sign in to answer this question.
Answers (2)
Walter Roberson on 31 May 2023
Either use
LastName = ["Sanchez";"Johnson"];
Sistemi_check.Properties.RowNames=LastName;
or else
LastName = {'Sanchez';'Johnson'};
Sistemi_check.Properties.RowNames=LastName;
That is you can use a cell array of character vectors, or you can use a string() array, but you cannot use a cell array of string() objects.
3 Comments Show 1 older commentHide 1 older comment
Show 1 older commentHide 1 older comment
Luca Re on 31 May 2023
Direct link to this comment
https://connections.mathworks.com/matlabcentral/answers/1976449-assign-name-row-to-table#comment_2766594
i try
LastName = ["Sanchez";"Johnson"];
and it run correcly
if i write : LastName = {'Sanchez';'Johnson'}; it give me an error
thanks
VBBV on 1 Jun 2023
Direct link to this comment
https://connections.mathworks.com/matlabcentral/answers/1976449-assign-name-row-to-table#comment_2766719
@Luca Re, use the cell array of character vectors as shown below
% use the cell array as shown below
LastName = {'Sanchez','Johnson'};
Sistemi_check.Properties.RowNames=LastName;
By default, RowNames variable refers to rows in a table. So , a ; is not needed to tell table to concatenate the names vertically. See more about RowNames property RowNames
Walter Roberson on 1 Jun 2023
Direct link to this comment
https://connections.mathworks.com/matlabcentral/answers/1976449-assign-name-row-to-table#comment_2767944
Sistemi_check = table("first", 123)
Sistemi_check = 1×2 table
Var1 Var2 _______ ____ "first" 123
LastName = ["Sanchez";"Johnson"];
Sistemi_check.Properties.VariableNames=LastName
Sistemi_check = 1×2 table
Sanchez Johnson _______ _______ "first" 123
Sistemi_check = table("first", 123)
Sistemi_check = 1×2 table
Var1 Var2 _______ ____ "first" 123
LastName = {'Sanchez';'Johnson'};
Sistemi_check.Properties.VariableNames=LastName
Sistemi_check = 1×2 table
Sanchez Johnson _______ _______ "first" 123
Sign in to comment.
Sulaymon Eshkabilov on 31 May 2023
Here is a plain example how to rename row and column names in a table array:
t1 = date;
t2 = '01-June-2023';
t3 = '10-June-2023';
t4 = '20-June-2023';
T = {t1; t2; t3;t4};
D = table(T);
D.N = [10:10:40]'
D = 4×2 table
T N ________________ __ {'31-May-2023' } 10 {'01-June-2023'} 20 {'10-June-2023'} 30 {'20-June-2023'} 40
% Add row names:
LastName = {'Sanchez';'Johnson'; 'Brown'; 'Green'};
D.Properties.RowNames=LastName
D = 4×2 table
T N ________________ __ Sanchez {'31-May-2023' } 10 Johnson {'01-June-2023'} 20 Brown {'10-June-2023'} 30 Green {'20-June-2023'} 40
% Change column names:
Col_Name = {'Date', 'Number'};
D=renamevars(D,{'T', 'N'}, Col_Name)
D = 4×2 table
Date Number ________________ ______ Sanchez {'31-May-2023' } 10 Johnson {'01-June-2023'} 20 Brown {'10-June-2023'} 30 Green {'20-June-2023'} 40
0 Comments Show -2 older commentsHide -2 older comments
Show -2 older commentsHide -2 older comments
Sign in to comment.
Sign in to answer this question.
See Also
Categories
MATLABLanguage FundamentalsData TypesTables
Find more on Tables in Help Center and File Exchange
Tags
- assign name row to table
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
An Error Occurred
Unable to complete the action because of changes made to the page. Reload the page to see its updated state.
Select a Web Site
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list
Americas
- América Latina (Español)
- Canada (English)
- United States (English)
Europe
- Belgium (English)
- Denmark (English)
- Deutschland (Deutsch)
- España (Español)
- Finland (English)
- France (Français)
- Ireland (English)
- Italia (Italiano)
- Luxembourg (English)
- Netherlands (English)
- Norway (English)
- Österreich (Deutsch)
- Portugal (English)
- Sweden (English)
- Switzerland
- Deutsch
- English
- Français
- United Kingdom(English)
Asia Pacific
- Australia (English)
- India (English)
- New Zealand (English)
- 中国
- 日本Japanese (日本語)
- 한국Korean (한국어)
Contact your local office
