The **corrplot()** function is used to plot correlation matrix in R.

The following method shows how you can do it with syntax.

**Method 1: Use corrplot() Function**

```
library(corrplot)
corrplot(correlation_matrix)
```

The following example shows how to use **corrplot()** function to plot correlation matrix in R.

## Using corrplot() Function

Suppose we want to plot correlation matrix created from dataframe then we first need to use **cor()** function and after this you plot correlation matrix:

```
# Import library
library(corrplot)
# Create data frame
df <- data.frame(Pressure1=c(78.2, 88.2, 71.7, 80.21, 84.21, 82.56, 72.12, 73.85),
Temperature=c(35, 36, 37, 38, 32, 30, 31, 34),
Pressure2=c(12, 13, 11, 12, 14, 15, 13, 15))
# Create correlation matrix with circles inside matrix
corrplot(cor(df))
```

Here the above snippet shows plot of correlation matrix created from dataframe.