Coursera Developing Data Products - Quiz 2

data-products-q2.R

---
title: "Developing Data Products - Quiz 2"
output: html_document
---

Q1
===

In the slidify YAML text. Changing the framework from io2012 to shower does what?

**Answer**

It changes the html5 framework thus changing the style of the slides.

Q2
===

You wrote R code in a slidify document as follows

```{r, results='hide', eval=FALSE}
fit <- lm(y ~ x1 + x2 + x3)
summary(fit)
```

If you want to hide the results of the CODEsummaryCODE statement (yet still have it run) what should you do?

**Answer**

Add a results = 'hide' option in the {r} call of the code chunk

Q3
===

You wrote R code in a slidify document as follows

```{r, echo=FALSE}
y <- rpois(10, 1)
x1 <- sample(1:10)
x2 <- sample(1:10)
x3 <- sample(1:10)
fit <- lm(y ~ x1 + x2 + x3)
summary(fit)
```

If you want to display the results, but not the actual code, what should you do?

**Answer**

Add a echo = FALSE option in the {r} call of the code chunk

Q4
===

R studio presentation tool does what?

**Answer**

Creates HTML5 slides using a generalized markdown format having an extention Rpres and creates reproducible presentations by embedding and running the R code from within the presentation document.

Q5
===

In Rstudio presenter, if you do not want the code to be evaluated, what option do you need to add to the {r} options?

**Answer**

eval = FALSE

Q6
===

When presenting data analysis to a broad audience, which of the following should be done?

**Answer**

Explain why each step was necessary.