R預設會將過大的數值會轉成科學記號(scientific notation)呈現,
例如 999999999999999 會顯示 1e+15。
想要不要讓它以科學記號呈現,
加入options(scipen=999),
就都不會以科學記號方式呈現了。
以下為範例:
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