Find index of rows in tables with two conditions doesn't work using &&

Question

Jason 2024-10-15

0
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https://ww2.mathworks.cn/matlabcentral/answers/2159935-find-index-of-rows-in-tables-with-two-conditions-doesn-t-work-using

评论： Voss 2024-10-15

Hello, I am using a readtable to read a CVS file into a uitable. I like the fact that you can operate on columns using the dot notation with the column heading.

I have seleted the columns of itnerest by using the import options object

    opts = detectImportOptions(fullpath)                                    % create importoptions object
    opts.SelectedVariableNames = ["YPosNanometer","ZPosNanometer","Tilt"];  % Select which columns to read in 
    T = readtable(fullpath,opts);

I want to be able to find the row index of any row that has a number 0 in both the 1st or 2nd column, i.e. in both the columns with headings "YPosNanometer","ZPosNanometer".

I thought the below would find these indicies

indx=(find(T.YPosNanometer == 0) && find(T.ZPosNanometer == 0))

But I get the error:

    Operands to the logical AND (&&) and OR (||) operators must be convertible to logical scalar values. Use the ANY or ALL functions to reduce operands
    to logical scalar values.

So how do I achieve the condition I want?