問題文
An analyst is asked to show how the average response time changed hour by hour over the past day, with one line for each web server. They are deciding between the chart and the timechart command. Which statement correctly describes how timechart differs from chart for this task?
選択肢
- The timechart command groups the results by the fields listed after by and then sorts them by time, which produces one row for every combination of values.
- The timechart command reads the raw events directly and reports timestamp values and skips field extraction.
- The timechart command always places _time on the horizontal axis, so the by clause is used for the series instead of the axis.
- The timechart command can accept a statistical function while the chart command cannot, so only timechart is able to compute an average.