hw5

R Markdown

This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com.

When you click the Knit button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:

category_sales

## # A tibble: 9 × 3
## # Groups:   category_1 [2]
##   category_1 category_2         total_sales
##   <chr>      <chr>                    <dbl>
## 1 Road       Elite Road                4483
## 2 Mountain   Cross Country Race        3683
## 3 Road       Endurance Road            3322
## 4 Mountain   Trail                     2569
## 5 Mountain   Sport                     2177
## 6 Mountain   Over Mountain             1514
## 7 Road       Triathalon                1149
## 8 Road       Cyclocross                 901
## 9 Mountain   Fat Bike                   374

combinations <- bike_orderlines %>%
  group_by(category_1, category_2) %>%
  summarise(frame_materials = n_distinct(frame_material)) %>%
  filter(frame_materials == 2)

## `summarise()` has grouped output by 'category_1'. You can override using the
## `.groups` argument.

if (nrow(combinations) == 0) {
  cat("All combinations contain both Aluminum and Carbon frame materials.")
} else 
  cat("Not all combinations contain both Aluminum and Carbon frame materials.")

## Not all combinations contain both Aluminum and Carbon frame materials.

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