Multiplying a column in a table by a constant

Hello,

I need to multiply a one-column table by e^-9. I don't know MATLAB code, so this is new to me. How can I do this please, any help would be appreciated.

Thank you,

Tim

Answer 1

[Walter Roberson]

YourTableName.NameOfColumn = YourTableName.nameOfColumn * 1e-9;

The above is the recommended form.

If, for some reason, you do not know hte column name, but you know the column number, then

YourTableName.(ColumnNumber) = YourTableName.(ColumnNumber) * 1e-9;

[Timothy]

Thanks for the explanation!

[Zachary]

I am trying to change units in my column. I want to go from mm to cm, so I just divide by 10. At the same time, I want to keep the original column value. How would you do that?

[Voss]

@Zachary: So you want to keep the existing column, which is in mm, and add a new column with the same quantities but in cm. Is that right? If so, here's an example:

values_in_mm = [1;2;3];
T = table(values_in_mm)

T = 3x1 table
    values_in_mm
    ____________

         1      
         2      
         3      

T.values_in_cm = T.values_in_mm/10

T = 3x2 table
    values_in_mm    values_in_cm
    ____________    ____________

         1              0.1     
         2              0.2     
         3              0.3