Convert string to real value with specific number of decimal digits

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Posted on by maram fraij

I have a string variable contain a real value , I need to convert string to real value with specific number of decimal digits i.e. not necessary 2 digits when I use str2num I cannot determine number of decimal digits and they are two digits by default

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Mea_ 60,284 on at

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RE: Convert string to real value with specific number of decimal digits

Hi maram fraij,

str2num does not round value to 2 decimals and should return you all decimals. However, it could be rounded later, could you please share code you using and explain why you think that it is rounded\truncated?

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maram fraij on at

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RE: Convert string to real value with specific number of decimal digits

I try to do test before writing the required code to handle the scenario I have

The is the code

real RealValue=99.3421111111;

str strValue= num2str

(

RealValue,

-1, // Minimum number of characters to output into the string.

6, // Required number of digits to the right of the decimal.

DecimalSeparator::Dot, // 1

ThousandSeparator::None // 2

);

real yy=str2num_RU(strValue);

info(strValue);

info(strfmt("%1",yy));

info(strfmt("%1",RealValue));

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maram fraij on at

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RE: Convert string to real value with specific number of decimal digits

I try to create new EDT with display no of digit 6 but the info gives me the same result

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Mea_ 60,284 on at

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RE: Convert string to real value with specific number of decimal digits

So that's exactly what I said. strFmt shows you only 2 decimals, but if you use debugger to check value of yy variable you will see all decimals. Another options is to use info(queryValue(yy)); to see actual value of the variable.

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maram fraij on at

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RE: Convert string to real value with specific number of decimal digits

When I use info(queryValue(yy)) all digits appear

Thank you.

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Mea_ 60,284 on at

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RE: Convert string to real value with specific number of decimal digits

Don't use it in your code instead of strFmt, I used it as an example. If you want to show more decimals use strFmt + num2str.

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maram fraij on at

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RE: Convert string to real value with specific number of decimal digits

Ok Thank you again it is only used for testing purposes .

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