Rounding Array Elements with Ease
When working with arrays, there are times when you need to round the elements to the nearest whole number or to a specific number of decimal places. This is where the around() function comes in handy.
The Basics of around()
The around() function takes one required argument – the input array whose elements are to be rounded. Additionally, it can take two optional arguments: decimal and out. The decimal argument specifies the number of decimal places to round to, while the out argument specifies the output array where the result will be stored.
Rounding to the Nearest Integer
Let’s take a look at an example where we round the elements of an array to the nearest integer. Using the np.around() function, we can achieve this with ease. However, it’s essential to note that even after rounding, the data type of the array remains as float64, resulting in the presence of a decimal point in the output. If you prefer to have the output as integers without the decimal points, you can convert the data type of the rounded array to int using the astype() function.
Rounding to a Specific Number of Decimal Places
In some cases, you may need to round the elements of an array to a specific number of decimal places. The around() function allows you to do just that. By specifying the decimal argument, you can control the number of decimal places to round to. For instance, if you want to round the elements to 2 decimal places, you can pass 2 as the decimal argument.
Storing the Result in a Desired Location
What if you want to store the rounded values in a specific array? The out argument comes to the rescue. By specifying the out argument, you can direct the around() function to store the result in a desired location. This can be particularly useful when working with large datasets.
In Practice
With the around() function, you can effortlessly round array elements to the nearest whole number or to a specific number of decimal places. Whether you’re working with simple integer rounding or precise decimal rounding, this function has got you covered. So, go ahead and give it a try – you’ll be rounding like a pro in no time!