Matlab：摆脱“a”；开关/外壳“；在我的代码范围内_Matlab

Matlab：摆脱“a”；开关/外壳“；在我的代码范围内

matlab

Matlab：摆脱“a”；开关/外壳“；在我的代码范围内,matlab,Matlab,您不需要阅读所有这些代码，但我将其发布以供参考。我需要将下面的代码段从案例0-8更改为仅针对n。在不同的情况下，唯一会发生变化的是z的范围和变量名（msgLength0、msgLength1、msgLength2等）。我尝试将变量msgLength#放入一个数组中，但如果没有“count”变量，就无法将数据分配到正确的行我如何摆脱这个“开关”，使用变量，而不是在个别情况下单独定义msgLength for these folders for these files cou

您不需要阅读所有这些代码，但我将其发布以供参考。我需要将下面的代码段从案例0-8更改为仅针对n。在不同的情况下，唯一会发生变化的是z的范围和变量名（msgLength0、msgLength1、msgLength2等）。我尝试将变量msgLength#放入一个数组中，但如果没有“count”变量，就无法将数据分配到正确的行

我如何摆脱这个“开关”，使用变量，而不是在个别情况下单独定义msgLength

for these folders
   for these files
        countmsgLength0= 1;
        countmsgLength1= 1;
        countmsgLength2= 1;
        countmsgLength3= 1;
        countmsgLength4= 1;
        countmsgLength5= 1;
        countmsgLength6= 1;
        countmsgLength7= 1;
        countmsgLength8= 1;
        for x= 1:length(firstinSeq)
        for y= 1:length(littledataPassed)
          if firstinSeq(x,1)== littledataPassed(y,1) && firstinSeq(x,2)== littledataPassed(y,2)
            switch firstinSeq(x,3)
            case 0
                indexStop = find(firstinSeq(x,4) ~= littledataPassed(y:length(littledataPassed),4), 1, 'first'); 
                indexProcess = find((littledataPassed(y:y+indexStop-1,6) == 1 & ... 
                   littledataPassed(y:y+indexStop-1,2) == firstinSeq(x,2) & ... 
                   littledataPassed(y:y+indexStop-1,5) == 0),1,'first'); 
                if isempty(indexProcess)
                   msgLength0(countmsgLength0,:)= [firstinSeq(x,:) [0 0 0 0 0 0]];                   
                else msgLength0(countmsgLength0,:)= [firstinSeq(x,:) littledataPassed(y+indexProcess-1,:)];
                end
                countmsgLength0= countmsgLength0 + 1;
            case 1
                indexStop = find(firstinSeq(x,4) ~= littledataPassed(y:length(littledataPassed),4), 1, 'first'); 
                indexProcess = find((littledataPassed(y:y+indexStop-1,6) == 1 & ... 
                   littledataPassed(y:y+indexStop-1,2) == firstinSeq(x,2) & ... 
                   littledataPassed(y:y+indexStop-1,5) == 0), 1, 'first'); 
                if isempty(indexProcess)
                    msgLength1(countmsgLength1,:)= [firstinSeq(x,:) [0 0 0 0 0 0]];
                else msgLength1(countmsgLength1,:)= [firstinSeq(x,:) littledataPassed(y+indexProcess-1,:)];
                end
                countmsgLength1= countmsgLength1 + 1;
            case 2
                indexStop = find(firstinSeq(x,4) ~= littledataPassed(y:length(littledataPassed),4), 1, 'first');
                for z= 0:1
                indexProcess = find((littledataPassed(y:y+indexStop-1,6) == 1 & ... 
                   littledataPassed(y:y+indexStop-1,2) == firstinSeq(x,2) & ... 
                   littledataPassed(y:y+indexStop-1,5) == z), 1, 'first'); 
                if isempty(indexProcess)
                   msgLength2(countmsgLength2,:)= [firstinSeq(x,:) [0 0 0 0 0 0]];
                else msgLength2(countmsgLength2,:)= [firstinSeq(x,:) littledataPassed(y+indexProcess-1,:)];
                end
                countmsgLength2= countmsgLength2 + 1;
                end
            case 3
                indexStop = find(firstinSeq(x,4) ~= littledataPassed(y:length(littledataPassed),4), 1, 'first');
                for z= 0:2
                indexProcess = find((littledataPassed(y:y+indexStop-1,6) == 1 & ... 
                   littledataPassed(y:y+indexStop-1,2) == firstinSeq(x,2) & ... 
                   littledataPassed(y:y+indexStop-1,5) == z), 1, 'first'); 
                if isempty(indexProcess)
                    msgLength3(countmsgLength3,:)= [firstinSeq(x,:) [0 0 0 0 0 0]];
                else msgLength3(countmsgLength3,:)= [firstinSeq(x,:) littledataPassed(y+indexProcess-1,:)];
                end
                countmsgLength3= countmsgLength3 + 1;
                end
            case 4
                indexStop = find(firstinSeq(x,4) ~= littledataPassed(y:length(littledataPassed),4), 1, 'first');
                for z=0:3
                indexProcess = find((littledataPassed(y:y+indexStop-1,6) == 1 & ... 
                   littledataPassed(y:y+indexStop-1,2) == firstinSeq(x,2) & ... 
                   littledataPassed(y:y+indexStop-1,5) == z), 1, 'first'); 
                if isempty(indexProcess)
                    msgLength4(countmsgLength4,:)= [firstinSeq(x,:) [0 0 0 0 0 0]];
                else msgLength4(countmsgLength4,:)= [firstinSeq(x,:) littledataPassed(y+indexProcess-1,:)];
                end
                countmsgLength4= countmsgLength4 + 1;
                end
            case 5
                indexStop = find(firstinSeq(x,4) ~= littledataPassed(y:length(littledataPassed),4), 1, 'first');
                for z= 0:4
                indexProcess = find((littledataPassed(y:y+indexStop-1,6) == 1 & ... 
                   littledataPassed(y:y+indexStop-1,2) == firstinSeq(x,2) & ... 
                   littledataPassed(y:y+indexStop-1,5) == z), 1, 'first'); 
                if isempty(indexProcess)
                    msgLength5(countmsgLength5,:)= [firstinSeq(x,:) [0 0 0 0 0 0]];
                else msgLength5(countmsgLength5,:)= [firstinSeq(x,:) littledataPassed(y+indexProcess-1,:)];
                end
                countmsgLength5= countmsgLength5 + 1;
                end
            case 6
                indexStop = find(firstinSeq(x,4) ~= littledataPassed(y:length(littledataPassed),4), 1, 'first'); 
                for z= 0:5
                indexProcess = find((littledataPassed(y:y+indexStop-1,6) == 1 & ... 
                   littledataPassed(y:y+indexStop-1,2) == firstinSeq(x,2) & ... 
                   littledataPassed(y:y+indexStop-1,5) == z), 1, 'first'); 
                if isempty(indexProcess)
                    msgLength6(countmsgLength6,:)= [firstinSeq(x,:) [0 0 0 0 0 0]];
                else msgLength6(countmsgLength6,:)= [firstinSeq(x,:) littledataPassed(y+indexProcess-1,:)];
                end
                countmsgLength6= countmsgLength6 + 1;
                end
            case 7
                indexStop = find(firstinSeq(x,4) ~= littledataPassed(y:length(littledataPassed),4), 1, 'first');
                for z=0:6
                indexProcess = find((littledataPassed(y:y+indexStop-1,6) == 1 & ... 
                   littledataPassed(y:y+indexStop-1,2) == firstinSeq(x,2) & ... 
                   littledataPassed(y:y+indexStop-1,5) == z), 1, 'first'); 
                if isempty(indexProcess)
                    msgLength7(countmsgLength7,:)= [firstinSeq(x,:) [0 0 0 0 0 0]];
                else msgLength7(countmsgLength7,:)= [firstinSeq(x,:) littledataPassed(y+indexProcess-1,:)];
                end
                countmsgLength7= countmsgLength7 + 1;
                end
            case 8
                indexStop = find(firstinSeq(x,4) ~= littledataPassed(y:length(littledataPassed),4), 1, 'first');
                for z=0:7
                indexProcess = find((littledataPassed(y:y+indexStop-1,6) == 1 & ... 
                   littledataPassed(y:y+indexStop-1,2) == firstinSeq(x,2) & ... 
                   littledataPassed(y:y+indexStop-1,5) == z), 1, 'first'); 
                if isempty(indexProcess)
                    msgLength8(countmsgLength8,:)= [firstinSeq(x,:) [0 0 0 0 0 0]];
                else msgLength8(countmsgLength8,:)= [firstinSeq(x,:) littledataPassed(y+indexProcess-1,:)];
                end
                countmsgLength8= countmsgLength8+ 1;
                end               
            end
            break
          end
        end
        end
        msgLength0((countmsgLength0):100,:)= [];
        msgLength1((countmsgLength1):1000,:)= [];
        msgLength2((countmsgLength2):1000,:)= [];
        msgLength3((countmsgLength3):1500,:)= [];
        msgLength4((countmsgLength4):1000,:)= [];
        msgLength5((countmsgLength5):1000,:)= [];
        msgLength6((countmsgLength6):500,:)= [];
        msgLength7((countmsgLength7):300,:)= [];
        msgLength8((countmsgLength8):300,:)= [];
        allmsgLength0(countallmsgLength0:(countallmsgLength0+length(msgLength0(:,1))-1),:) = msgLength0;
        allmsgLength1(countallmsgLength1:(countallmsgLength1+length(msgLength1(:,1))-1),:) = msgLength1;
        allmsgLength2(countallmsgLength2:(countallmsgLength2+length(msgLength2(:,1))-1),:) = msgLength2;
        allmsgLength3(countallmsgLength3:(countallmsgLength3+length(msgLength3(:,1))-1),:) = msgLength3;
        allmsgLength4(countallmsgLength4:(countallmsgLength4+length(msgLength4(:,1))-1),:) = msgLength4;
        allmsgLength5(countallmsgLength5:(countallmsgLength5+length(msgLength5(:,1))-1),:) = msgLength5;
        allmsgLength6(countallmsgLength6:(countallmsgLength6+length(msgLength6(:,1))-1),:) = msgLength6;
        allmsgLength7(countallmsgLength7:(countallmsgLength7+length(msgLength7(:,1))-1),:) = msgLength7;
        allmsgLength8(countallmsgLength8:(countallmsgLength8+length(msgLength8(:,1))-1),:) = msgLength8;
        countallmsgLength0 = countallmsgLength0 + length(msgLength0(:,1));
        countallmsgLength1 = countallmsgLength1 + length(msgLength1(:,1));
        countallmsgLength2 = countallmsgLength2 + length(msgLength2(:,1));
        countallmsgLength3 = countallmsgLength3 + length(msgLength3(:,1));
        countallmsgLength4 = countallmsgLength4 + length(msgLength4(:,1));
        countallmsgLength5 = countallmsgLength5 + length(msgLength5(:,1));
        countallmsgLength6 = countallmsgLength6 + length(msgLength6(:,1));
        countallmsgLength7 = countallmsgLength7 + length(msgLength7(:,1));
        countallmsgLength8 = countallmsgLength8 + length(msgLength8(:,1));
    end
    cd ..
end

您是否可以尝试将数组用于

countMsgLength

，例如，您可以增加

countMsgLength（4）

，而不是

countMsgLength4

由于

msgLengthN

似乎是矩阵，如果所有msgLengthN最终都是相同维度的，则可以形成一个类似立方体的3d数组。您只需要在开始时初始化这个数组，然后随着代码的进行设置适当的元素。或者，如果

msgLengthN

s的维度不同，可以使用单元格数组，设置

msgLength{N}（countmsgLength（N），：）=

而不是像上面那样设置

msgLengthN（countmsgLengthN，：）

。在每次使用之前，将其初始化为空矩阵，例如，在开始时

msgLength = {};
for k=1:8
  msgLength{k} = [];
end

或者，如果你提前知道维度，你可以将其转换为零矩阵

msgLength = {};
for k=1:8
  msgLength{k} = zeros([rows cols]);
end

除此之外，如果没有一些额外的解释，似乎很难说明您正在尝试做什么。

您是否可以尝试将数组用于

countMsgLength

，例如，您可以增加

countMsgLength（4）

由于

msgLengthN

msgLengthN

s的维度不同，可以使用单元格数组，设置

msgLength{N}（countmsgLength（N），：）=

而不是像上面那样设置

msgLengthN（countmsgLengthN，：）

。在每次使用之前，将其初始化为空矩阵，例如，在开始时

msgLength = {};
for k=1:8
  msgLength{k} = [];
end

或者，如果你提前知道维度，你可以将其转换为零矩阵

msgLength = {};
for k=1:8
  msgLength{k} = zeros([rows cols]);
end

除此之外，如果没有一些额外的解释，似乎很难解释您要做什么。

答案是，不要使用这样的变量，在名称中内置数字。它迫使您编写这样混乱的代码。之后，您会发现自己拼命地调试代码。最终，您会发现错误，可能是在复制/粘贴错误中，您键入了一个编号不正确的变量名

相反，使用向量、单元格数组、结构等。将信息存储在数组中，然后索引到该数组/vector/cell/struct中。您的代码将变得更简单、更易于调试、更短。

以下是一种摆脱开关/案例的方法。但是，如果您能更多地解释数据的外观以及您希望实现的目标，那么它可能会对您更有用。最有可能的是，整个分析可以简化很多

countmsgLength = ones(9,1); %# countmsgLength(1) are the counts for to case 0
msgLength = cell(9,1);


for x= 1:length(firstinSeq)
        for y= 1:length(littledataPassed)
          if firstinSeq(x,1)== littledataPassed(y,1) && firstinSeq(x,2)== littledataPassed(y,2)
            switchNum = firstinSeq(x,3); %# switchNum is 0...8

                indexStop = find(firstinSeq(x,4) ~= littledataPassed(y:length(littledataPassed),4), 1, 'first');
                for z= 0:switchNum-1 %# if switchNum <2, the loop will execute once
                indexProcess = find((littledataPassed(y:y+indexStop-1,6) == 1 & ... 
                   littledataPassed(y:y+indexStop-1,2) == firstinSeq(x,2) & ... 
                   littledataPassed(y:y+indexStop-1,5) == z), 1, 'first'); 
                if isempty(indexProcess)
                   msgLength{switchNum+1}(countmsgLength(switchNum+1),:)= [firstinSeq(x,:) [0 0 0 0 0 0]];
                else msgLength{switchNum+1}(countmsgLength(switchNum+1),:)= [firstinSeq(x,:) littledataPassed(y+indexProcess-1,:)];
                end
                countmsgLength(switchNum+1)= countmsgLength(switchNum+1) + 1;
                end %# loop z
          end %# if
      end %# loop y
end %# loop x

countmsgLength=one（9,1）；%countmsgLength（1）是案例0的计数
msgLength=单元（9,1）；
对于x=1：长度（firstinSeq）
对于y=1：长度（littledataPassed）
如果firstinSeq（x，1）=littledataPassed（y，1）&&firstinSeq（x，2）=littledataPassed（y，2）
switchNum=firstinSeq（x，3）；%switchNum是0…8
indexStop=find（firstinSeq（x，4）~=littledataPassed（y:length（littledataPassed），4），1，“first”）；
对于z=0:switchNum-1%#如果switchNum，这里有一种方法可以消除开关/案例。但是，如果您能更多地解释数据的外观以及您希望实现的目标，那么它可能会对您更有用。最有可能的是，整个分析可以简化很多
countmsgLength = ones(9,1); %# countmsgLength(1) are the counts for to case 0
msgLength = cell(9,1);


for x= 1:length(firstinSeq)
        for y= 1:length(littledataPassed)
          if firstinSeq(x,1)== littledataPassed(y,1) && firstinSeq(x,2)== littledataPassed(y,2)
            switchNum = firstinSeq(x,3); %# switchNum is 0...8

                indexStop = find(firstinSeq(x,4) ~= littledataPassed(y:length(littledataPassed),4), 1, 'first');
                for z= 0:switchNum-1 %# if switchNum <2, the loop will execute once
                indexProcess = find((littledataPassed(y:y+indexStop-1,6) == 1 & ... 
                   littledataPassed(y:y+indexStop-1,2) == firstinSeq(x,2) & ... 
                   littledataPassed(y:y+indexStop-1,5) == z), 1, 'first'); 
                if isempty(indexProcess)
                   msgLength{switchNum+1}(countmsgLength(switchNum+1),:)= [firstinSeq(x,:) [0 0 0 0 0 0]];
                else msgLength{switchNum+1}(countmsgLength(switchNum+1),:)= [firstinSeq(x,:) littledataPassed(y+indexProcess-1,:)];
                end
                countmsgLength(switchNum+1)= countmsgLength(switchNum+1) + 1;
                end %# loop z
          end %# if
      end %# loop y
end %# loop x

countmsgLength=one（9,1）；%countmsgLength（1）是案例0的计数
msgLength=单元（9,1）；
对于x=1：长度（firstinSeq）
对于y=1：长度（littledataPassed）
如果firstinSeq（x，1）=littledataPassed（y，1）&&firstinSeq（x，2）=littledataPassed（y，2）
switchNum=firstinSeq（x，3）；%switchNum是0…8
indexStop=find（firstinSeq（x，4）~=littledataPassed（y:length（littledataPassed），4），1，“first”）；
对于z=0:switchNum-1%#如果switchNum我不太明白您想要实现什么。你能更详细地解释一下和/或给出一个简单的例子来说明你不太明白你想要实现什么吗。你能更详细地解释一下和/或给出一个简单的例子来说明你想要什么吗。我对matlab和编程都是新手，但大家一致认为这是最好的方法。谢谢。我对matlab和编程都是新手，但大家一致认为这是最好的方法。