Use this option when there is little or no loss of information as in the conversion of some variables of double type to variables of float type, etc. Change the storage type of a string variable statalist. You can use the command confirm to determine if a variable is of a certain type, i. Only one type exists for strings shorthand in most data programs for string of characters, which is str. I want to change the storage type of a variable in my dataset from str. Data create or change data other variablecreation commands clone existing variable description clonevar generates newvar as an exact copy of an existing variable, varname, with the same storage type, values, and display format as varname. You cannot get means, you cannot do a regression, you cannot do an anova, etc. Simply type help in the command window, followed by the name of the. So the total number of values that can be represented by a byte type is. There may be times that you receive a file that has many or all of the variables defined as strings, that is, character variables. Or destring varlist, replace note that you must specify one of the two options from maoyong fan to statalist subject st.
Dear all, one value of my variable dx in the original excel file is 719. How can i change the format of this dx var to str7. If you want to convert a numeric variable to its string representation, you can use the string. Doub2flt is useful if a large number of variables are imported into stata from another database in the double format and the double precision is not needed. Is there a simple way to change the storage type from str to numerical date sun, 11 jul 2004 22. D destring convert string variables to numeric variables and vice versa. Covers a variety of issues from data management to regression analysis. Stata is a good tool for cleaning and manipulating data, regardless of the software. Stata module to change storage type of real variable. Stata manual declares the ranges for each data storage type in the manual for datatypes, for example, the range for byte is. I anticipate that exactly which variables get imported with which storage types will change over time.
When stata does this, the number will look right when you browse, but attempts to run commands will turn up zero observations. The storage type of variables can be changed with the help of the recast command. This entry provides a quick reference for data types allowed by stata. Both storage types are read in using a variant of the import command. Numbers are stored as byte, int, long, float, or double, with the default being float. How can i quickly convert many string variables to numeric. If this is not the case, i would appreciate suggestion on how discriminate variables on this basis storage type. How to create a new variable that is calculated from other variables duration. Remarks and examples closest to 0 storage type minimum maximum without being 0 bytes byte 127 100 1 1 int 32,767 32,740 1 2 long 2,147,483,647 2,147,483,620 1 4 float 1.