train_bar.desc = "train epoch[{}/{}]loss{:.3f}".format(s): What does desc mean?

daisyby 注册会员
2023-02-27 10:33

desc is an attribute whose value is a string that describes a status or indicator in the training process. In this case, train_bar.desc is a string that records information about each training epoch, including the current number of epochs, the total number of epochs and the training loss. Specifically, this string uses format(), the string formatting method in Python, with the values of the variables epoch, epochs, and loss inserted into the string at their appropriate positions by padding the {} placeholders and arguments in the format() method. The resulting string is of the form "train epoch[1/10] loss:0.123".

dboy2233 注册会员
2023-02-27 10:33

the reference answer GPT ᴼ ᴾ ᴱ ᴺ ᴬ ᴵ < br / > this is a Python string formatting operation, mainly used for building complex strings, among them:

  • train_bar is an object..desc is an attribute of the object, representing the text description of the training progress bar described by the object.
  • train epoch[{}/{}]loss{:.3f} is a string-formatted template where {} represents a placeholder that is then filled with a specific value using the format() method;
  • format(s) means using the parameter s to fill the placeholder. Specifically, the first {} is filled with s[0], the second {} is filled with s[1], and the.3f means the third {} is filled with a floating point number that retains 3 decimal places. The value of this floating-point number is provided by s[2].

In summary, the function of this code snippet is to assign the description of a training progress bar to the.desc property of train_bar object, including the epoch value of the current training, the total epoch value and the current loss value.

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2023-02-27 10:33
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2023-02-27 10:33