How can i display variable name on message box?

The case is:

in workspace, there are some variable name and corresponding value

for example

name=value

A=1

B=2

C=3

D=4

How to display the minimum value included variable name in message box: A=1

Answer 1

[Star Strider]

Try this:

A=1;
B=2;
C=3;
D=4;

varcell = {'A','B','C','D'};
varvctr = [A B C D];
[minvar,idx] = min(varvctr);
msg = sprintf('%s = %d',varcell{idx},varvctr(idx));
msgbox(msg, 'Minimum: ')

[yt man]

Thank you so much, its work!

[Star Strider]

My pleasure!

If my Answer solved your problem, please Accept it!

[yt man]

i try another method to show the min ans,by table

A=40;

B=6;

C=10;

D=21;

E=17;

F=22;

Name = {'A';'B';'C';'D';'E';'F'};

Value = [A;B;C;D;E;F];

T = table(Name,Value)

rows = min(Value);

vars = {'Name'};

Final = T(rows,vars)

why the final table will not show the name of minimum value, it show the F or 'Row index exceeds table dimensions'.

[Walter Roberson]

Notice that Star Strider used

[minvar,idx] = min(varvctr);

and then used the idx value.

You have used

rows = min(Value);

which returns the minimum value but not its position.

[yt man]

I still not understand how can i show it,

    Name
    ____

    'B'

if i change

rows = min(Value);

to

 [minvar,idx] = min(Value);

it still cannot show what i want :(

[Walter Roberson]

T(idx,:)

[yt man]

Thanks Walter, its work!!!

[Star Strider]

Thank you Walter!

Fast asleep here (UTC-7) during that exchange.