Insert comma/point in a number

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Michela Longhi 2017-12-12

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评论： Star Strider 2017-12-12

I have a temperature data in a char format without comma or point to divide the decimal and I want to insert a point after the second number (staring from the left):

char= 225800 and I want t=22.58

Can someone help me, please?

Thank you

Michela

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Star Strider 2017-12-12

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I am not certain what you are doing.

I assume ‘char’ is a character vector. If so, this will work:

char = '225800';
t = str2double(char)*1E-4               % Double-Precision Numeric
tstr = sprintf('%.2f', t)               % Character Array
t =
   22.5800
tstr =
    '22.58'