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Correct text and caption of Figure 3.8 #3

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87d85b7
Correct text and caption of Figure 3.8
leonardoshibata Nov 27, 2019
45b4f19
Update ch03.Rmd
leonardoshibata Nov 27, 2019
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8 changes: 4 additions & 4 deletions ch03.Rmd
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Expand Up @@ -174,9 +174,9 @@ diamonds

With `geom_bar()`, the default behavior is to use `stat = "bin"`, which counts up the number of cases for each group (each *x* position, in this example). In the graph we can see that there are about 23,000 cases with an `ideal` cut.

In this example, the variable on the x-axis is discrete. If we use a continuous variable on the x-axis, we'll get a bar at each unique *x* value in the data, as shown in Figure \@ref(fig:FIG-BAR-GRAPH-COUNT-CONTINUOUS), left:
In this example, the variable on the x-axis is discrete. If we use a continuous variable on the x-axis, we'll get a bar at each unique *x* value in the data, as shown in Figure \@ref(fig:FIG-BAR-GRAPH-COUNT-CONTINUOUS), top:

```{r FIG-BAR-GRAPH-COUNT-CONTINUOUS, echo=FALSE, message=FALSE, fig.show="hold", fig.cap='Bar graph of counts on a continuous axis (left); A histogram (right)', fig.width=6, fig.height=3}
```{r FIG-BAR-GRAPH-COUNT-CONTINUOUS, echo=FALSE, message=FALSE, fig.show="hold", fig.cap='Bar graph of counts on a continuous axis (top); A histogram (bottom)', fig.width=6, fig.height=3}
# Bar graph of counts
ggplot(diamonds, aes(x = carat)) +
geom_bar()
Expand All @@ -186,7 +186,7 @@ ggplot(diamonds, aes(x = carat)) +
geom_histogram()
```

The bar graph with a continuous x-axis is similar to a histogram, but not the same. A histogram is shown on the right of Figure \@ref(fig:FIG-BAR-GRAPH-COUNT-CONTINUOUS). In this kind of bar graph, each bar represents a unique *x* value, whereas in a histogram, each bar represents a *range* of *x* values.
The bar graph with a continuous x-axis is similar to a histogram, but not the same. A histogram is shown on the bottom of Figure \@ref(fig:FIG-BAR-GRAPH-COUNT-CONTINUOUS). In this kind of bar graph, each bar represents a unique *x* value, whereas in a histogram, each bar represents a *range* of *x* values.


### See Also
Expand Down Expand Up @@ -766,4 +766,4 @@ ggplot(tophit, aes(x = avg, y = name)) +

For more on changing the order of factor levels, see Recipe \@ref(RECIPE-DATAPREP-FACTOR-REORDER). Also see Recipe \@ref(RECIPE-DATAPREP-FACTOR-REORDER-VALUE) for details on changing the order of factor levels based on some other values.

For more on moving the legend, see Recipe \@ref(RECIPE-LEGEND-POSITION). To hide grid lines, see Recipe \@ref(RECIPE-APPEARANCE-HIDE-GRIDLINES).
For more on moving the legend, see Recipe \@ref(RECIPE-LEGEND-POSITION). To hide grid lines, see Recipe \@ref(RECIPE-APPEARANCE-HIDE-GRIDLINES).