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insert_monster_tabs_start.Rmd
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insert_monster_tabs_start.Rmd
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<ul class="nav nav-pills" id="myTab" role="tablist" style="margin-top: 18px;">
<li class="nav-item active">
<a class="nav-link" id="monsters-tab" data-toggle="tab" href="#monsters" role="tab" aria-controls="monsters" aria-selected="true"> `monsters` </a>
</li>
<li class="nav-item">
<a class="nav-link" id="filter3-tab" data-toggle="tab" href="#filter3" role="tab" aria-controls="filter3" aria-selected="false"> `filter`</a>
</li>
<li class="nav-item">
<a class="nav-link" id="select-tab" data-toggle="tab" href="#select" role="tab" aria-controls="select" aria-selected="false"> `select` </a>
</li>
<li class="nav-item">
<a class="nav-link" id="arrange-tab" data-toggle="tab" href="#arrange" role="tab" aria-controls="arrange" aria-selected="false"> `arrange`</a>
</li>
<li class="nav-item">
<a class="nav-link" id="mutate3-tab" data-toggle="tab" href="#mutate3" role="tab" aria-controls="mutate3" aria-selected="false"> `mutate`</a>
</li>
<li class="nav-item">
<a class="nav-link" id="code-monsters-tab" data-toggle="tab" href="#code-monsters" role="tab" aria-controls="code-monsters" aria-selected="false"> `R code`</a>
</li>
</ul>
<div class="well tab-content monsters" id="myTabContent" style="background-color: white;">
<div class="tab-pane fade active in" id="monsters" role="tabpanel" aria-labelledby="monsters-tab">
{style="width: 85%;"}
<br><br>
</div>
<div class="tab-pane fade" id="filter3" role="tabpanel" aria-labelledby="filter3-tab">
### Filter with a single condition / test {-}
{style="width: 95%; margin-top: 12px;"}
<h3 style="margin-top: 20px;">Filter with multiple conditions / tests </h3>
{style="width: 95%;"}
<br><br>
</div>
<div class="tab-pane fade" id="select" role="tabpanel" aria-labelledby="select-tab">
### Keep columns {-}
{style="width: 98%; margin-top: 6px;"}
<h3 style="margin-top: 20px;">Drop columns </h3>
{style="width: 70%;"}
<br><br>
</div>
<div class="tab-pane fade" id="arrange" role="tabpanel" aria-labelledby="arrange-tab">
<h3 style="margin-top: 20px;"> Arrange from lowest to highest </h3>
{style="width: 98%; margin-top: 12px;"}
<h3 style="margin-top: 20px;"> Arrange from highest to lowest </h3>
{style="width: 98%;"}
<br><br>
</div>
<div class="tab-pane fade" id="mutate3" role="tabpanel" aria-labelledby="mutate3-tab">
### Update existing column {-}
{style="width: 98%; margin-top: 12px;"}
<h3 style="margin-top: 20px;">Add a new column </h3>
{style="width: 98%;"}
<br><br>
</div>
<div class="tab-pane fade" id="code-monsters" role="tabpanel" aria-labelledby="code-monsters-tab">
```{r, eval=F, echo=T}
# Create monsters
monsters <- data.frame(id = 1:5,
color = c("pink", "green", "pink", "green", "green"),
age = c(8,2,7,3,1),
hat = c(T,T,F,T,F) )
# Filter ----
## Use a single condition/test
monsters %>% filter(color == "pink")
## Use multiple conditions/tests
monsters %>% filter(color == "pink", age > 7)
# Select ----
## Keep only 2 columns
monsters %>% select(id, age)
## Drop columns with a '-' in front
monsters %>% select(-hat)
# Arrange ----
## From low to high
monsters %>% arrange(age)
## Descend from high to low
monsters %>% arrange(desc(age))
# Mutate ----
## Update an existing column
monsters %>% mutate(age = age + 2)
## Create a new column
monsters %>% mutate(is_baby = age < 3)
```
</div>
</div>