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Generate bar like the attach

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Ameri 2021-4-14

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评论： Cris LaPierre 2021-4-16

Dear friends,

How could I plot bar, for the following data. This graph generated by Excel.

Thank you in advance.

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Chunru 2021-4-15

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在 MATLAB Online 中打开

Try this:

a = rand(5, 3);  % 5 groups of 3 bars
bar(a);

Ameri 2021-4-15

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Thanks, but the values not realted with graph

DGM 2021-4-15

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Depends what you mean by "different nice color". You can specify any color tuple you want, and there are multiple built-in and countless custom colormaps available.

Ameri 2021-4-15

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编辑：Ameri 2021-4-15

and what about var the data like the excel file please ?

Adam Danz 2021-4-15

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This has been addressed in the forum dozens and dozens of times. Search for methods of changing grouped bar colors and if you have any problems implementing the solution show us what you've got.

DGM 2021-4-15

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编辑：DGM 2021-4-15

在 MATLAB Online 中打开

If you're asking how to make it look like the excel plot, this is an approximate example.

a = rand(5, 3);  % 5 groups of 3 bars
h = bar(a)
cmap=[68 114 196;
      165 165 165;
      91 155 213]/255;
  
h(1).FaceColor=cmap(1,:);
h(2).FaceColor=cmap(2,:);
h(3).FaceColor=cmap(3,:);
h(1).EdgeColor=cmap(1,:);
h(2).EdgeColor=cmap(2,:);
h(3).EdgeColor=cmap(3,:);
set(gca,'ygrid','on','xgrid','off')
legend(h,'thing1','thing2','thing3')

Ameri 2021-4-15

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Thank you alot of, there are several issue please

1- x (number of nodes must be 40 60 80 90 100) not from 1 to 5

2- y (pdr ratio) classified as (10 20 30 40 50 60 70 80 90 100)

3- each bar must refers to his data from excel

I am very grateful for your help

Ameri 2021-4-15

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编辑：Ameri 2021-4-15

How could we make the graph like excel please or giving same thing

DGM 2021-4-15

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在 MATLAB Online 中打开

For clarification:

a = rand(5, 3);

is a placeholder. You're supposed to include your data.

Consider the example:

x = [5 10 15 20]; 
y1 = [11 12 13 14]; % this is one dataset
y2 = [14 15 16 17]; % this is another dataset
y3 = [17 18 19 20]; % and so on
y = cat(1,y1,y2,y3)'; % concatenate them
h = bar(x,y); % plot them
cmap=[68 114 196;
	  165 165 165;
	  91 155 213]/255;
  
h(1).FaceColor=cmap(1,:);
h(2).FaceColor=cmap(2,:);
h(3).FaceColor=cmap(3,:);
h(1).EdgeColor=cmap(1,:);
h(2).EdgeColor=cmap(2,:);
h(3).EdgeColor=cmap(3,:);
set(gca,'ygrid','on','xgrid','off')
legend(h,'thing1','thing2','thing3','location','northwest')

You can either include those vectors as literals or by reading them in from an excel file.

Ameri 2021-4-15

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Many thanks, this is exctly what I want, I have just one qustions more about giving a good layout and what about the number of array you wrote them based on what please . Many thanks in advance.

Ameri 2021-4-15

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How could control on the space between the group of cloumns please like space between ( 40 and 60 )please

DGM 2021-4-15

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在 MATLAB Online 中打开

You can use the barwidth option

h = bar(x,y,'barwidth',0.6);

Ameri 2021-4-15

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1- Here a gap or space between some bars is large, where the space between (80 - 90 ) is small, while the space between (40-60) is large. how could make this space are equlals between groups please.

2-and what about this please ? how you selected this number and why

cmap=[68 114 196;

165 165 165;

91 155 213]/255;

DGM 2021-4-15

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编辑：DGM 2021-4-15

在 MATLAB Online 中打开

I'm sorry. I didn't see your prior comment. This site tends to be laggy about updating sometimes.

For question 1, that's happening because x has uneven spacing. Try using a categorical array for x:

x = categorical([40 60 80 90 100]);

For question 2, that's a colormap I derived from the image of the excel bar chart you posted. You can use whatever colormap you want. They're just RGB values.

Ameri 2021-4-15