How to reduce precision of data greator than zero only? (Matlab R2019a)

Hello... Lets suppose i have a data stored in a variable

A = [1.23323      45.24343       0.1       0.001        455.34543         0.0001 ]

i want to shrink pricision of data only greator than zero... i tryed

A(A>0) - str2double(compose('%.2f',A(A>0)))

so the result should be

A = [1.23     45.24      0.1       0.001        455.34          0.0001]       %% <<<< Desired Results

but its not woking, it applying %.2f on whole data....and giving >>>

A = [1.23     45.24      0.10       0.00        455.34          0.00]

Kindly Guide. Thanks

[Walter Roberson]

so the result should be

No, 0.001 is greater than 0, so it should have its precision reduced.

[taimour sadiq]

ooops....Yes you r right... my basic mistake ...

Answer 1

[Walter Roberson]

format long g
A = [1.23323      -45.24343       0.1       0.001        455.34543         -0.0001 ]

A = 1×6

1.23323 -45.24343 0.1 0.001 455.34543 -0.0001

mask = A>0;
A(mask) = round(A(mask),2);
A

A = 1×6

1.23 -45.24343 0.1 0 455.35 -0.0001

[Walter Roberson]

It is possible that what you really want is

format long g
A = [1.23323      -45.24343       0.1       0.001        455.34543         -0.0001 ]

A = 1×6

1.23323 -45.24343 0.1 0.001 455.34543 -0.0001

mask = abs(A)>0.01;
A(mask) = round(A(mask),2);
A

A = 1×6

1.23 -45.24 0.1 0.001 455.35 -0.0001