How to insert text in a matrix - If function

Dear All, In the following code I would like to insert 'good news', 'bad news', 'no news' instead of 1, 2, 3 in the "Announcement" matrix.

No idea how to insert text in a matrix (20X28 in this case) !

Many thanks in advance !

Pierre

[Stephen23]

Numeric matrices contain numeric data only.

You could:

• store the index in the numeric array, or
• use another kind of array, e.g. a cell array, table, etc.

But it is not possible to put a string (1xN character vector) into one element of a numeric matrix.

Answer 1

[Geoff Hayes]

Pierre - since you are inserting strings of different lengths, your Announcements array will need to be come a cell array

 Announcements = cell(N,28);

You will updates it simply as

 Announcements{j,i} = 'good news';

etc.

Though you may want to keep your previous implementation and just manage an array of values between 1-3 and then (when you need to display your message) just access a map that converts the number to a string

 mapIdToString = {'good news'; 'bad news' ; 'no news'};

The equivalent to the 1 (id) would then be

 mapIdToString(1)

[Pierre Lonfat]

Thank you from the bottom of my heart !

Answer 2

[Andrei Bobrov]

D is Divident

F is Forecasted_DPS

A = {'good news','bad news','no news'};
ii = (D >= 1.03*F) + (D <= .97*F)*2;
ii(ii == 0) = 3;
Announcements = A(ii);

[Pierre Lonfat]

This solution works as well ! Thanks !