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# Comma and Dot Variable in SPSS

In this section, we are going to learn about the **comma variable** and **dot variable**. Comma and dot are the two variable types, which are a type of delimiters used in SPSS.

They are less often used because we donâ€™t understand them, or we donâ€™t want to specify all variables properly, but it is good to know about them. Firstly we will define the **delimiters**. So **delimiters** are the **notation** or the **symbols**, which are used to specify the boundary between digits. For example, suppose we want to write **ten thousand rupees**, how we write it. We will write it as **10000**, but at best, what we can do to make it more readable or better. We can put a comma like **10,000**. If we put a comma between 10,000, the comma is acting as a **delimiter**. Generally, we put **comma** as a **delimiter**, and then for decimal values, we use a dot like **10,000.00**.

So this is the one standard kind of notation we generally follow mostly in India or US, but in many other countries, this convention is not followed in fact, it is reversed. If we are in **Europe** and want to write **ten thousand euros**, we can write it like 10.000,00. Here **dot** acts as a **delimiter**.

Now we are going on SPSS, and letâ€™s try to define comma and dot variable types. Suppose we will define one case as a comma separator delimiter and other cases as a dot separator delimiter. Letâ€™s have two different types of variables, like **income** and **population**. We will define **income** as a **comma** separator variable and **population** as a **dot** separator delimiter. So, firstly we will define income as a comma separator delimiter. For this, we will go to **Numeric type** of income variable then click on **comma** and then press **ok** like this:

When we click on the **data view** option, we will see nothing in the income field because our value is **15**, which is very small.

Suppose we are writing **fifteen lakhs**, and once we press **enter**, we will see **comma** as a delimiter like **1,500,000**. If we want to add decimals, we can also define it. For this, go to the **decimal option** and define it upto **2** places. This dot separates our value after the decimal. Now the value of income will look like this:

Now we will define the **population** as a **dot separator** variable. For this, we will go to **Numeric type** of population variable then click on the **dot** and then press **ok** like this:

Now we will enter the population of **delhi** city. Suppose the population of **delhi** is something random value like **2344555556**. After this, we will press **enter**. Since we have taken dot as a delimiter, so we are expecting the digits to be separated or boundary to be created by using the dot variable. So after press enter, the value will look like **2.344.555.556,00**. So the boundary is created by the dot variable, and a comma separates the decimal value.

But in India, we are not accustomed to such type of value because we generally use a comma as a delimiter.