Updates the progress bar. Arguments: current: Index of current step. values: List of tuples: `(name, value_for_last_step)`. If `name` is in `stateful_metrics`, `value_for_last_step` will be displayed as-is. Else, an average of the
(self, current, values=None)
| 350 | self._last_update = 0 |
| 351 | |
| 352 | def update(self, current, values=None): |
| 353 | """Updates the progress bar. |
| 354 | |
| 355 | Arguments: |
| 356 | current: Index of current step. |
| 357 | values: List of tuples: |
| 358 | `(name, value_for_last_step)`. |
| 359 | If `name` is in `stateful_metrics`, |
| 360 | `value_for_last_step` will be displayed as-is. |
| 361 | Else, an average of the metric over time will be displayed. |
| 362 | """ |
| 363 | values = values or [] |
| 364 | for k, v in values: |
| 365 | if k not in self._values_order: |
| 366 | self._values_order.append(k) |
| 367 | if k not in self.stateful_metrics: |
| 368 | if k not in self._values: |
| 369 | self._values[k] = [v * (current - self._seen_so_far), |
| 370 | current - self._seen_so_far] |
| 371 | else: |
| 372 | self._values[k][0] += v * (current - self._seen_so_far) |
| 373 | self._values[k][1] += (current - self._seen_so_far) |
| 374 | else: |
| 375 | # Stateful metrics output a numeric value. This representation |
| 376 | # means "take an average from a single value" but keeps the |
| 377 | # numeric formatting. |
| 378 | self._values[k] = [v, 1] |
| 379 | self._seen_so_far = current |
| 380 | |
| 381 | now = time.time() |
| 382 | info = ' - %.0fs' % (now - self._start) |
| 383 | if self.verbose == 1: |
| 384 | if (now - self._last_update < self.interval and |
| 385 | self.target is not None and current < self.target): |
| 386 | return |
| 387 | |
| 388 | prev_total_width = self._total_width |
| 389 | if self._dynamic_display: |
| 390 | sys.stdout.write('\b' * prev_total_width) |
| 391 | sys.stdout.write('\r') |
| 392 | else: |
| 393 | sys.stdout.write('\n') |
| 394 | |
| 395 | if self.target is not None: |
| 396 | numdigits = int(np.log10(self.target)) + 1 |
| 397 | bar = ('%' + str(numdigits) + 'd/%d [') % (current, self.target) |
| 398 | prog = float(current) / self.target |
| 399 | prog_width = int(self.width * prog) |
| 400 | if prog_width > 0: |
| 401 | bar += ('=' * (prog_width - 1)) |
| 402 | if current < self.target: |
| 403 | bar += '>' |
| 404 | else: |
| 405 | bar += '=' |
| 406 | bar += ('.' * (self.width - prog_width)) |
| 407 | bar += ']' |
| 408 | else: |
| 409 | bar = '%7d/Unknown' % current |