search

tpemartin / 110-1-r4ds-main

MIT License
3 stars 73 forks source link

Exercise 4.12 Run exercise 3 from Exercise section to obtain drug #46

Closed tpemartin closed 2 years ago

tpemartin commented 2 years ago

Exercise 4.12 Run exercise 3 from Exercise section to obtain drug.

How many cases have 毒品品項 of 安非他命?

How many cases have 毒品品項 belonging to the following set?

drugSet <- c('安非他命','甲基安非他命','二甲氧基安非他命(DMA)','左旋甲基安非他命','3,4-亞甲基雙氧安非他命(MDA)')