將圖例添加到圖的錯誤

Question

我想爲我的圖添加圖例。到目前爲止非常好！它一直工作，但現在我面臨一個錯誤。

我的繪圖功能的代碼如下：

function [ ] = plot_mti_IV(Bus_indizes, Bus_voltages,new_results, names) 

    global Timeslot 

    m={'-','--',':','-','--',':','-.','-*','-^','-.','-*','-^'}; 

    Timeslot_temp=[1:1:Timeslot(end)]; 
    name_index=find(Bus_voltages==1); %Find index of depicted Variable 

    %Initialise legend 
    words=['Bus' num2str(Bus_indizes(1)) names{name_index(1)}] 
    words=[words ;['Bus' num2str(Bus_indizes(1)) names{name_index(1)}]] 

    num_Bus=length(Bus_indizes); 
    colors = distinguishable_colors(num_Bus); %distinguishable_colors.m: Function from Mathworks File Exchange. See license for Copyright! 

    for i=1:length(name_index) %for number of chosen variables 

      for j=1:num_Bus %plot this value for all chosen busses 

       if j==1 

        plot_data=new_results{i,1}(Timeslot_temp,Bus_indizes(j)); %collect data to be plotted in array 
        plot(plot_data,m{i},'Color',colors(j,:)); 
        hold on 
        xlim([Timeslot(1) (Timeslot(end)+Timeslot(end)*0.05)]);  %Adjustment, so that legend does not cover graph 
        hold on 

        xlabel('Time'); 
        ylabel('Voltage');           

       else 

        words= [words ; ['Bus' num2str(Bus_indizes(j)) names{name_index(i)} ]]; 
        plot_data=new_results{i,1}(Timeslot_temp,Bus_indizes(j)); %collect data to be plotted in array 
        plot(plot_data,m{i},'Color',colors(j,:)); 
        hold on 

       end 
      end  
    end 

    legend(words); %Add legend to graph 

end 

我得到一個錯誤

Operands to the || and && operators must be convertible to logical scalar values. 

Error in legend (line 194) 
    elseif narg > 0 && ~ischar(varargin{1}) && ... 

當我執行legend(words)。

表達legend(words)之前，words的格式是：

words = 

    'Bus' '1' 'VBN Voltage Angle' 
    'Bus' '4' 'VBN Voltage Angle' 
    'Bus' '2' 'VBN Voltage Angle' 
    'Bus' '2' 'VCN Voltage Angle' 

我無法理解這個錯誤，是對你的幫助非常高興！

嗨，啊，好吧！不知道我需要一個1xN的矩陣...... @ Ander Biguri：是的，這應該是我的第一個傳奇入口！在這裏，我將張貼的行爲就像上面的代碼示例：

[ output_args ] = test_plot() 

figure 
Timeslot=[2:1:7] 

Bus_indizes=[1,2,3,5] 

Bus_voltages=[0,0,0,0,1,1,0,0,0,0,0,0] 


new_results=magic(12) 

names=cell(1,12); 
names{1,1}={'VAN Voltage Magnitude'}; 
names{1,2}={'VBN Voltage Magnitude'}; 
names{1,3}={'VCN Voltage Magnitude'}; 
names{1,4}={'VAN Voltage Angle'}; 
names{1,5}={'VBN Voltage Angle'}; 
names{1,6}={'VCN Voltage Angle'}; 
names{1,7}={'V1 Voltage Magnitude'}; 
names{1,8}={'V2 Voltage Magnitude'}; 
names{1,9}={'V0 Voltage Magnitude'}; 
names{1,10}={'V1 Voltage Angle'}; 
names{1,11}={'V2 Voltage Angle'}; 
names{1,12}={'V0 Voltage Angle'}; 

    m={'-','--',':','-','--',':','-.','-*','-^','-.','-*','-^'}; 

    Timeslot_temp=[1:1:Timeslot(end)]; %Array containing all time instants from absolute Beginning of simulation (not necessarily the first value of the timeslot) till the end of the timeslot 
    name_index=find(Bus_voltages==1); %Find index of depicted Variable 

    %Initialise words 
    words=['Bus' num2str(Bus_indizes(1)) names{name_index(1)}] 
    words=[words ;['Bus' num2str(Bus_indizes(1)) names{name_index(1)}]] 

    num_Bus=length(Bus_indizes); 
    colors = distinguishable_colors(num_Bus); %distinguishable_colors.m: Function from Mathworks File Exchange. See license for Copyright! 

    for i=1:length(name_index) %for number of chosen variables 

      for j=1:num_Bus %plot this value for all chosen busses, color is changed for every bus 

       if j==1 

        plot_data=new_results(Timeslot_temp,Bus_indizes(j)); %collect data to be plotted in array 
        plot(plot_data,m{i},'Color',colors(j,:)); 
        hold on 
        xlim([Timeslot(1) (Timeslot(end)+Timeslot(end)*0.05)]);  %Adjustment, so that legend does not cover graph 
        hold on 

        xlabel('Time'); 
        ylabel('Voltage');           %Label y axis with name of the chosen variable 

       else 

        words= [words ; ['Bus' num2str(Bus_indizes(j)) names{name_index(i)} ]]; 
        plot_data=new_results(Timeslot_temp,Bus_indizes(j)); %collect data to be plotted in array 
        plot(plot_data,m{i},'Color',colors(j,:)); 
        hold on 

       end 
      end  
    end 

    legend(words); %Add legend to graph 

end 

Answer 1

我現在使用功能strjoin解決了這個問題：

words={}; 

temp=['Bus' num2str(Bus_indizes(j)) names{variables_index(i)} ]; 
words{end+1}=strjoin(temp); 

legend(words);