# How do you plot multiple curves on one graph in R?

## How do you plot multiple curves on one graph in R?

To draw multiple curves in one plot, different functions are created separately and the curve() function is called repeatedly for each curve function. The call for every other curve() function except for the first one should have added an attribute set to TRUE so that multiple curves can be added to the same plot.

**Can we plot multiple data series in a chart?**

An Excel Combo chart lets you display different series and styles on the same chart. To create a combo chart, select the data you want displayed, then click the dialog launcher in the corner of the Charts group on the Insert tab to open the Insert Chart dialog box.

### How do you plot monthly time series in R?

So here’s the workaround.

- Declare the data set to be time series.
- Use tsp and seq to generate the required x-axis labels.
- Plot the chart but suppress x-axis.
- Use the axis command to add the custom x-axis labels.
- Add an extra step to draw a vertical line at 2012.

**How do I add a legend in ggplot2?**

You can place the legend literally anywhere. To put it around the chart, use the legend. position option and specify top , right , bottom , or left . To put it inside the plot area, specify a vector of length 2, both values going between 0 and 1 and giving the x and y coordinates.

#### Which chart can plot multiple data series?

Sometimes while dealing with hierarchical data we need to combine two or more various chart types into a single chart for better visualization and analysis. This type of chart having multiple data sets is known as “Combination charts”.

**How do I add a new line to an existing plot in R?**

In R, you add lines to a plot in a very similar way to adding points, except that you use the lines() function to achieve this. The result is an object of class lm. You use the function fitted() to extract the fitted values from a regression model. This is useful, because you can then plot the fitted values on a plot.