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What is the color spec for default blue?

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Brando Miranda
Brando Miranda 2018-7-15
回答： Image Analyst 2018-7-15
i.e. this blue:
----
I tried:
c = repelem([0 0.4470 0.7410],length(X),1);
%scatter(X,Y,c)
scatter(X,Y,[0 0.4470 0.7410])
but if fails with message:
Error using scatter (line 76)
S must be a scalar or a vector of the same length as X.
Error in scaling_experiment_loss_vs_gen_errosr_normalization (line 65)
scatter(X,Y,[0 0.4470 0.7410])

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回答（3 个）

Jan
Jan 2018-7-15
编辑：Jan 2018-7-15
It depends on what you call "color spec".
figure,
axes;
LineH = plot(rand(1, 10), 'o')
get(LineH, 'Color')
>> [0 0.4470 0.7410]
Or maybe you mean:
plot(1:10, rand(1, 10), 'b')
^^^
? If this does not help, please edit the question and add more details.
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Brando Miranda
Brando Miranda 2018-7-15
c = repelem([0 0.4470 0.7410],length(X),1);
scatter(X,Y)
fails
Jan
Jan 2018-7-15
编辑：Jan 2018-7-15
"fails" does not allow to understand, what you observe. "c" is not used in your scatter command. So perhaps this is a typo only?
X = 1:10;
Y = rand(1, 10);
c = repelem([0 0.4470 0.7410],length(X),1);
scatter(X, Y, [], c)
Works under R2016b.

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Brando Miranda
Brando Miranda 2018-7-15
c = [0 0.4470 0.7410];
scatter(X,Y,'MarkerEdgeColor',c)
finally worked
Image Analyst
Image Analyst 2018-7-15
You can get all the default colors like this:
% Get the initial set of default plot colors.
initialColorOrder = get(gca,'ColorOrder') % Initial
You can change that order, and my attached demo shows you how.

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