How create an Histogram of datas?

Hello to evreyone, I am trying to plot an hist for this string array but I can figure it out. Can someone help me? I need to have an histogram with the name of the groups on the X and the quantity of each one.

[ "3-"

"0"

"0+"

"0-"

"0+"

"0"

"0-"

"0-"

"0-"

"0-"

"3"

"0-"

"U"

"3"

"U"

"U"

"2+"

"0"

"1-"

"2-"

"3-"

"1-"

"2"

"2"

"1-"

"1-"

"1-"

"1-"

"1-"

"1-"

"3"

"3-"

"3"

"3"

"3"

"3"

"3"

"3"

"3"

"3-"

"3"

"U"

"U"

"U"

"3"

"3"

"3"

"3"

"U"

"3"

"3"

"3"

"3"

"3"

"3"

"3"

"3"

"3"

"3"

"3"

"0+"

"3"

"3"

"3"

"2"

"0"

"0"

"0+"

"3-"

"3+"

"0+"

"0+"

"0+"

"2+"

"2+"

"2+"

"0+"

"0+"

"0+"

"0+"

"0+"

"0+"

"0+"

"0+"

"2+"

"0+"

"0+"

"0+"

"0+"

"0"

"0+"

"2+"

"0+"

"0+"

"0+"

"2+"

"0+"

"0+"

"0-"]

Answer 1

[Paul Hoffrichter]

c = [ "3-"
"0"
"0+"
"0-"
"0+"
"0"
"0-"
"0-"
"0-"
"0-"
"3"
"0-"
"U"
"3"
"U"
"U"
"2+"
"0"
"1-"
"2-"
"3-"
"1-"
"2"
"2"
"1-"
"1-"
"1-"
"1-"
"1-"
"1-"
"3"
"3-"
"3"
"3"
"3"
"3"
"3"
"3"
"3"
"3-"
"3"
"U"
"U"
"U"
"3"
"3"
"3"
"3"
"U"
"3"
"3"
"3"
"3"
"3"
"3"
"3"
"3"
"3"
"3"
"3"
"0+"
"3"
"3"
"3"
"2"
"0"
"0"
"0+"
"3-"
"3+"
"0+"
"0+"
"0+"
"2+"
"2+"
"2+"
"0+"
"0+"
"0+"
"0+"
"0+"
"0+"
"0+"
"0+"
"2+"
"0+"
"0+"
"0+"
"0+"
"0"
"0+"
"2+"
"0+"
"0+"
"0+"
"2+"
"0+"
"0+"
"0-"];
B = categorical(c);

% Method 1: Was unable to get annotations.
figure(11)
histogram(B);
grid on; grid minor;

[N,Categories] =histcounts(B);

for ii = 1:numel(N)
   fprintf( "%-3s : %3d \n", Categories{ii}, N(ii) );
end

0   :   6 
0+  :  25 
0-  :   7 
1-  :   8 
2   :   3 
2+  :   7 
2-  :   1 
3   :  29 
3+  :   1 
3-  :   5 
U   :   7 

% Method 2: Using bar, able to get more annotations
Bunq = unique(B);
figure(12), hb = bar( Bunq, N );

xtips1 = hb.XEndPoints;
ytips1 = hb.YEndPoints;
labels1 = string(hb.YData);
text(xtips1,ytips1,labels1,'HorizontalAlignment','center', 'VerticalAlignment','bottom')
grid on; grid minor;