MATLAB: How to highlight or change the color of certain values in a table

colortableuitable

I am creating about 50 (46×9)tables with the command array2table and I would really like to highlight/change the color of values that are above a certain threshold, otherwise I have to do it manually. I know how to find the indices of these values (with the command find), however I cannot find a way to let these values stand out out of the rest of the data. How can I do this or do I have to use something else than array2table like uitable? And if uitable is the solution how would I do it?

Best Answer

Presumably you are displaying your data in a GUI and so would need to use a uitable. See http://www.mathworks.com/matlabcentral/answers/25038-how-to-change-each-cell-color-in-a-uitable for an example on how to colour the cells.

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The Data property of a uicontrol can be one of:

[] the empty numeric array
a numeric array
a logical array
a cell array

The empty numeric array [] is the default property.

In the case of the empty numeric array or a numeric array or a logical array, assigning a character vector to data(1,1) would be an attempt to store about 92 characters into a single location, which is not going to fit.

If the Data property were a cell array, then attempting to store to data(1,1) would get you the error

Conversion to cell from char is not possible.

You should be doing:

data = get(handles.board, 'Data');
if ~iscell(data)
  data = num2cell(data);
end
data{1,1} = '{''<html><table border=0 width=400 bgcolor=#FF0000><TR><TD>Hello</TD></TR> </table></html>'' }';

MATLAB: How to find the frequency of unique rows in 3 columns of a table

 Var1 = {'Car';'Dog';'Car';'TV';'TV';'TV';'Car'}
 Var2 = {'red';'blue';'red';'green';'yellow';'green';'red'};
 Var3 = {'X';'Y';'X';'Z';'Z';'Z';'X'};
 t = table(Var1,Var2,Var3);
 [tt ia ic] = unique(t);
 Var4 = histc(ic,unique(ic));
 tt.Var4 = Var4;

tt is the required table.

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MATLAB: How to change the non-singleton rhs dimensions of a vector

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