Simple For loop through a Column

Question

Matt Brianik 2018-1-13

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/376933-simple-for-loop-through-a-column

评论： Matt Brianik 2018-1-15

I Have a for loop that iterates through a data table and based on certain criteria it will replace or keep the value found. The issue I have is that it only works for the fist column and does not affect the remaining columns. I put an example of my code below. The result should be a 3x4 table with the first columns being 1000, 101000, 1000. and then should repeat in the other 3 columns. How do i get it to iterate through correctly?

 NumRows=3
MDL= [0.5;0.5;0.5]
x=(1:4)
y=(101:104)
TABLE=[x;y;x]
g=1;
Collum=1;
k=1;
RowTurnedTable=TABLE(:,Collum)                                                  
for i=1:NumRows;
    if RowTurnedTable(i) < MDL(i)
        TABLE(i)=MDL(i)*10
    else TABLE(i) = TABLE(i)*1000
    end
end

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Image Analyst 2018-1-13

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/376933-simple-for-loop-through-a-column#answer_299943

在 MATLAB Online 中打开

Your loop loops over rows, not columns. Try this:

numRows=3;
MDL= [0.5;0.5;0.5]
x=(1:4);
y=(101:104);
TABLE=[x;y;x]
g=1;
column=1;
k=1;
RowTurnedTable=TABLE(:, column)  % Not sure what this is for.
for row = 1 : numRows
  if RowTurnedTable(row) < MDL(row)
    TABLE(row, :)=MDL(row)*10; % Never happens!
  else
    TABLE(row, :) = TABLE(row, :)*1000;
  end
end
TABLE