PURPOSE: A method for predicting temperature codes by a regression analysis algorithm is provided to apply the regression analysis algorithm to measured temperature codes and predict accurate temperature code values in an interval which is not measured. CONSTITUTION: Temperature code values, with respect to temperatures measured in the first temperature(10) interval within an operation temperature(-30¯60) of a mobile communication terminal, are calculated(200). The calculated temperature code values are sampled(210), and the sampled temperature code values are applied to a regression analysis algorithm and temperature code prediction values are calculated(220). The temperature code prediction values are applied to the regression analysis algorithm, and temperature code values of the second temperature(1) interval are predicted(230).
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