Presentation of disproportionate rmarkdown chart

Question

Hello, I have the following problem: when I print the chart in Rmarkdown it gets the numbers one over the other, in addition to indicating the month/year in the coordinates also get the wrong view..

Is there any code to increase the chart size so it doesn’t happen? Or some idea to improve?

ggplot(data = planilha.grafico, aes(x = Ano, y = value, color = type)) + 
  geom_line(size=1.0) + scale_x_date(date_breaks = "1 month", date_labels 
= "%b/%Y") + 
 labs(title = "Gráfico 8: Evolução do Reajuste de Inativos",
       subtitle = "Fonte: Base de Dados SIGRH", x = " ", y = "Quantidade") + 
  theme(axis.line.x = element_line(size = .5, colour = "black"),
        axis.line.y = element_line(size = .5, colour = "black"),
        axis.text.x = element_text(colour = "black", size = 8),
        axis.text.y = element_text(colour = "black", size = 8),
        panel.grid.major = element_blank(),
        panel.grid.minor = element_blank(), 
        panel.background = element_blank(),
        legend.position = "bottom", legend.direction = "horizontal",
        legend.title = element_blank()) + 
  geom_point(size=1.5) +scale_y_continuous(limits = c(0, 160000)) + 
  geom_text(data = planilha.grafico, aes(x=Ano, y=value, label = value, 
vjust = -1.1), size=3)

dput of the data used to create the chart

## structure(list(Ano = structure(c(16801, 16832, 16861, 16892, 
## 16922, 16953, 16983, 17014, 17045, 17075, 17106, 17136, 17167, 
## 16801, 16832, 16861, 16892, 16922, 16953, 16983, 17014, 17045, 
## 17075, 17106, 17136, 17167), class = "Date"), type = c("Paridade", 
## "Paridade", "Paridade", "Paridade", "Paridade", "Paridade", "Paridade", 
## "Paridade", "Paridade", "Paridade", "Paridade", "Paridade", "Paridade", 
## "Média", "Média", "Média", "Média", "Média", "Média", "Média", 
## "Média", "Média", "Média", "Média", "Média", "Média"), value = c(149160, 
## 149300, 149599, 149787, 150039, 150319, 150507, 150584, 151025, 
## 151380, 151429, 151952, 151827, 4227, 4231, 4229, 4240, 4251, 
## 4258, 4377, 4404, 4427, 4471, 4502, 4554, 4581)), row.names = c(NA, 
## -26L), .Names = c("Ano", "type", "value"), class = c("tbl_df", 
## "tbl", "data.frame"))

Answer 1

I arrived at the following chart:

For this, I have adjusted the following parameters:

• Within theme, option axis.text.x, put the argument angle=90, to rotate the x-axis legend

• In function geom_text, placed hjust=0, vjust = -1.5 (in aes), and angle = 45, in order to rotate the dots

• I increased the y-axis limit using scale_y_continuous(limits = c(0, 170000)). If I didn’t do this, the dots would not fit in the final image.

The whole code went like this:

ggplot(data = planilha.grafico, aes(x = Ano, y = value, color = type)) + 
  geom_line(size=1.0) + scale_x_date(date_breaks = "1 month", date_labels = "%b/%Y") + 
  labs(title = "Gráfico 8: Evolução do Reajuste de Inativos",
       subtitle = "Fonte: Base de Dados SIGRH", x = " ", y = "Quantidade") + 
  theme(axis.line.x = element_line(size = .5, colour = "black"),
        axis.line.y = element_line(size = .5, colour = "black"),
        axis.text.x = element_text(angle = 90, colour = "black", size = 8),
        axis.text.y = element_text(colour = "black", size = 8),
        panel.grid.major = element_blank(),
        panel.grid.minor = element_blank(), 
        panel.background = element_blank(),
        legend.position = "bottom", legend.direction = "horizontal",
        legend.title = element_blank()) + 
  geom_point(size=1.5) + 
  scale_y_continuous(limits = c(0, 170000)) + 
  geom_text(data = planilha.grafico, aes(x=Ano, y=value, label = value, 
    hjust=0, vjust = -1.5), size=3, angle = 45)

Answer 2

You control this in the parameters of Chunk rmarkdown:

```{r fig.width = 7, fig.height = 7}
# código do seu gráfico
```

7 is the pattern of height and width, goes moving until you think it’s good. Here has a list of parameters that you can touch on Chunks. I pasted below the specific graphics. If the width and height does not work you can try to mess with them too. Sometimes you have to mess with out.width and out.height also.