我如何改变变量＆＃39; population_in_millions＆＃39;使用日志，到基础7，转换

Question

我尝试使用以下代码但缺少某些内容是否有人知道什么是错的？

# Loading the datasets and define some variables
    library(dslabs)
    data(murders)

    population_in_millions <- murders$population/7^10
    total_m <- murders$total

    plot(population_in_millions, total_m)

Answer 1

通用格式log(x, base)计算基数为base的对数（请参阅this）。 尝试

population_in_millions <- log(murders$population, base = 7)
plot(population_in_millions, total_m)