切り出す前の時系列データ。
The time series data before the extraction.
start
切り出す範囲の先頭の時刻。
The start time of the time window to extract.
end
切り出す範囲の末尾の時刻。
The end time of the time window to extract.
◆戻り値(Return value)
引数originalが表す時系列データから
[start,end]の時刻範囲を切り出した時系列データ。
[start,end]がoriginalの時刻範囲外にはみ出す場合はエラーとなる。
A time series data obtained by extracting
the time window [start, end]
from the time series data given by argument original.
If [start,end] extends out of the definition range of original,
the program finishes as an error.