How do I convert a Date in SPSS?
Select “Date” from the list of variable types. Then, on the right, select the format in which the date/time for that variable should appear (by selecting the date/time format in which the values already appear). Click OK. Now SPSS will recognize the variable as date/time.
How do I convert a string to a Date in SPSS?
Syntax 1
- *Create new date variable as string. string newdate(a11).
- *Add day, month, year from old string to new string and separate these components with dashes. compute newdate = concat(
- *Check if result is as desired. execute.
- *Convert stringdate with dashes to SPSS date variable. alter type newdate (date11).
How do I convert numeric to character in SPSS?
In SPSS, to convert a numeric variable to a string variable, use the STRING() function. Since the default variable type in SPSS is numeric, you need to define your string variable in advance.
Is date a scale variable in SPSS?
First of all, SPSS date variables are numeric variables; their actual values are just numbers. More precisely, the numbers they hold are the number of seconds between the year 1582 and the start (midnight) of a given date.
How do I convert numeric to string variable in SPSS?
To automatically recode variables:
- Click Transform > Automatic Recode.
- Select the string variable of interest in the left column and move it to the right column.
- Enter a new name for the autorecoded variable in the New Name field, then click Add New Name.
- SPSS will assign numeric categories in alphabetical order.
What is numeric and string in SPSS?
SPSS has 2 variable types: Numeric variables contain only numbers and are suitable for numeric calculations such as addition and multiplication. String variables may contain letters, numbers and other characters.
What is a numeric variable in SPSS?
Numeric variables are one of SPSS’ two variable types. They can be defined as variables that contain only numbers as values. * This is not as obvious as it seems because numeric values may not look like numbers at all.
How do you convert categorical data to numerical data in SPSS?
Click Transform > Automatic Recode. Select the string variable of interest in the left column and move it to the right column. Enter a new name for the autorecoded variable in the New Name field, then click Add New Name. SPSS will assign numeric categories in alphabetical order.
How to convert a string to a date in SPSS?
The first line (COMPUTE) actually computes the new date variable using the built-in function number (), which converts string variables to numeric variables. The argument DATE11 tells SPSS that the content of the string variable is in DATE11 format initially (dd-mmm-yyyy).
How are date time variables stored in SPSS?
In SPSS, date-time variables are treated as a special type of numeric variable. All SPSS date-time variables, regardless of whether they’re a date or a duration, are stored in SPSS as the number of seconds since October 14, 1582. This means that “under the hood”, date-time variables are actually integers!
What are the numbers in date.dmy in SPSS?
Now, in first instance, DATE.DMY results in a variable holding huge numbers. These are the numbers of seconds between the year 1582 and my actual data as explained in SPSS Date Variables Basics. These huge numbers can be shown as normal dates by setting the appropriate formats.
How to add and subtract dates in SPSS?
SPSS DATESUM adds a number of time units to a date variable. For subtracting time, just enter a negative value. So say I want to contact respondents 3 months after they entered the hospital. However, 7 days before contacting them, they should be sent a notification. The syntax below shows how to add both dates to our data.