The module is made available under terms of the gpl v3. For example, if string cell value is s1 it will be lost if converting it to numeric regards. If you have a string variable that has only numbers in it, then you can alternatively use the real function. In the example above, a8 indicates a string variable eight. Stata module to decode a numeric variable into a string variable, statistical software components s417702, boston college department of economics, revised 30 sep 20. If you create a frequency table of this variable analyze descriptive statistics frequencies, you will notice something strange. How to convert string into numeric form in spss without.
Watch how to convert a string variable to a numeric variable. How do i convert string variables to numeric variables in stata. Some of them are missing, some have the value 1 and the rest of them are usually a very big number like 3,834,848. In spss, to convert a numeric variable to a string variable, use the string function. An example of when one might need to do this is if they needed to append. However, the other 3 variables contain system missings so we. Notice, if it matters to you that this does not convert a numeric variable to a string variable. I have two variables in stata, both numeric variables that have somehow been recorded as string variables. As summarised at the top of this output the five unavoidable sources of loss are. So how do we know if a variable is string or numeric.
Excel converts string to numeric sas support communities. However, in many situations it is better to convert only character columns to numeric i. How to convert char to numeric posted 01062017 2732 views in reply to pritam26 not sure why you have to recode your variables this way but to answer your question. The informat tells sas how to read the data, and it should be read as numeric. The string numeric string conversion resulted in missing information for 66 observations.
Data conversion string to numeric solutions experts. How do i convert string variables to numeric variables in. Some users of excel or similar programs get in the habit of putting several lines of. Precisely, well flag non empty string values that are system missing after the conversion. Official stata provides the utilities encode and decode for conversion between string variables and numeric variables with value labels, and the utilities destring and tostring for conversion. Convert between datetime arrays, numbers, and text. From there what you do depends on how you want the data to be displayed. But today i found a more convenient way of splitting numbers by using nsplit dan blanchette. The first line of syntax reads in the dataset shown above. Truncation and potential truncation of data andor labels 1. It is useful for converting numbers to text for insertion in graph or table titles, captions, or labels. The following conventions must be followed for stata to read your. Sep 08, 2016 this is an example of a spreadsheet from excel.
Check that the columns dont contain any unintended characters. Spss how to convert string variables into numeric ones. The put function writes values with a specified format. Conversion of string to numeric it wouild be helpful if you would explain the context of what you are trying to do. Stata module to decode a numeric variable into a string. Converting numeric variables to character variables ciser. If you have a string variable that has only numbers in. It provides a wide range of statistical analysis, data management, and graphics. Ive tried several combinations to try and fix the issue including adding a dummy row with values of 000 dummy and this works for the active row but not for subsequent rows. To insert commas into the numeric value, use this command.
Looking at rows 4 and 5, we see that the leading zeros are stripped from the string during the stringtonumeric conversion of dx, meaning that we lost the distinction between a 3digit and a 4digit code. Use a numeric informat as this will allow you to read a string and translate it into a numeric value. Wordstat for stata was created to allow stata and stata 15 users running under windows, to apply text analytics techniques on any string variables stored in a stata data file. The latest versions of stata added many new features, including a long string data type allowing one to store along with numerical and categorical data, documents up. Convert character to numeric in r example for string. Converting numeric to string statalist the stata forum. The random string generator creates a series of numbers and letters that have no pattern. Reed college stata help changing string variables to. String variables defined with a width of 80 characters the intercooled stata limit or 244. How do i convert my icd9 codes from a string type to a numeric type.
I have tried to tostring the variable country in the dataset1, but it tells me. This function is used to find the nth position of the given word in. The great divide among data types in stata is between numeric and. Stata is reading in my variables as string instead of numeric. In a case where your string variables are in fact strings e. If you have a string variable and want to convert it to a numeric variable, you can use the encode command. The following examples show how to use these rules to convert from characternumeric or numericcharacter. Unlike mata, stata does not allow users to create matrices containing string values.
Convert between datetime arrays, numbers, and text overview. I need them converted to numeric variables so that i can generate a new variable with them. This example uses put function to convert numeric data to character data. Converting numeric into string using the value labels. Convert dta file to exceldownload free software programs online. Not least, most statistical procedures just do not accept string variables. Suppose you have a 6digit numeric observation id, code, where the first 2 digits represent geographic code and the last 4 digits represent unique observation codes, and you want to generate a new variable, reg, that represents the 2digit geographic code. All the locals created are indexed by a sequential identi er which allows users to manage. Any variable in stata s numeric format begins with a % sign.
We recommend that practitioners store each row of a string matrix in a separate local. With this utility you generate a 16 character output based on your input of numbers and upper and lower case letters. I suspect you want to do this but without seeing your variable names its just guesswork. This module may be installed from within stata by typing ssc install sdecode. Since weve 480 cases in our data, were done for s1. When i tried, it said type mismatch i have tried the real and the encode commands, none of which are working. Based on your input, get a random alpha numeric string.
As these are at least suspicious, well call those conversion failures. One method of converting numbers stored as strings into numerical variables is to use a string function called real that translates numeric values stored as strings into numeric values stata can recognize as such. Sep 27, 2016 convert variables from string to numeric in stata duration. The variable country is string and the order of countries is also different, which means that if i destring it, it would not match dataset1 neither. Wordstat for stata content analysis and text mining tool. C put converts character variable with a user defined format to another character variable. Hi statalist, i am facing a problem with destring a variable. And you use a numeric format in the string function, to select what string. This function is used to display a number in the given format. For a given row, columns are added to the local recursively, separated by a space. Here is one example where you need to preserve the numerical format for strings. The first tabulate looks identical to the tabulate done on the string variable region above. Fortunately, stata offers some easy ways for converting string to numeric variables and vice versa. Running this command will cause stata to make a new numeric categorical variable wherein the data has labels that correspond to the old string values.
In the sample data file, the variable state is a string variable representing whether the student is an instate student or an outofstate student. Also, the replace option of tostring doesnt take other parameters. A very basic question i would appreciate help with. Written and illustrated tutorials for the statistical software spss. Statistical software components from boston college department of economics. Below are conversion rules for sas, spss, r, excel, and open office. With convert keyword, you can convert a variable type from string to numeric. Worldwriter does have conversion capability and i rarely use ww so i dont recall if you want decimal, digits, or something else. The conversion also resulted in 1,048 incorrect codes, of which 1,046 are undefined codes. In spss, how do i convert between numeric variables and. Hello, you can save the file as csv in excel, then open it in spss. I need help with changing a variable from numeric to string. May 01, 2015 the following examples show how to use these rules to convert from character numeric or numeric character.
However, two records have incorrect diagnoses that appear to be legitimate. How to convert char to numeric sas support communities. This function is used to find the length of a word. How can i quickly convert many string variables to numeric variables.
Even though stata can handly string variables, it is clear in many respects that numeric variables are much preferred. Jul, 2017 convert variables from string to numeric in stata earnings management data. For example, suppose a numeric variable gnp has a value of 12345678. Stata module to replace string date variables with numeric date variables with the same names. Since the default variable type in spss is numeric, you need to define your string variable in advance. Wordstat combines natural language processing, content analysis and statistical techniques to quickly extract topics, patterns and relationships in large amount of text.
The example dataset, hsbs, is a subset of the high school and beyond data file with all of the variables as string variables. How to determine whether a string represents a numeric value. How can i quickly convert many string variables to numeric. How can i convert string variables to numeric variables in. With into keyword, you can recode values of a variable into a new variable numeric conversion into the same variable recode code convert into numcode.
Stata module to decode a numeric variable into a string variable. In spss, recoding categorical string variables to numeric codes and converting blank strings to missing values can be done automatically using automatic recode. Stata can store numbers with differing levels of precision, as described in the table below. To determine whether a string is a valid representation of a specified numeric type, use the static tryparse method that is implemented by all primitive numeric types and also by types such as datetime and ipaddress. The dataset has 435 observations in all, and spss reports that there are zero missing values. Hi, does any one know of a solution to stop excel converting string values such as 001 to a numeric field of 1. Stata is a complete, integrated statistical software package created by statacorp lp.
A put converts character variable to another character variable. Sep 01, 2010 here is one example where you need to preserve the numerical format for strings. This is an example of how to change a numeric variable, id, to character variable. Ditto for 4byte and 8byte numerics the string length and the number of leading spaces is dictated by the length of the maximum numeric value that it can hold. Any variable in statas numeric format begins with a % sign. For converting metric string variables holding just numbers into numeric variables, see spss convert string to numeric variable. My variable named dealvalue has 72914 observations. Missing numeric data should be coded as an empty cell, not a space, dot.
Roger newson statistical software components from boston college department of economics. In stata, how do i display numeric values with commas inserted. Converting string to numeric data in spss will make you lose any data other than numbers. Numbers in stata can take a variety of interesting formats, including negative values, decimals and positive and negative scienfitic notation e. How to convert multiple string varibles into numeric in spss. The following document provides an example of how to create. In stata, how do i display numeric values with commas. Odd numbers of characters in string variables were soon allowed in stata 2. B put converts numeric variable to a character variable with numeric value. Preserving numerical format after string transformation. In spss versions 24 and higher, tiny icons in front of variable names tell us the variable type, format and even measurement level.
The stata blog using dates and times from other software. Date prev date next thread prev thread next date index thread index. So technically, the source right now is string and the destination is numeric 18,2. The following document provides an example of how to. Jan 05, 2011 it is usually possible to adjust the numeric date or datetime values to the sentinel date and units that stata uses. It is usually possible to adjust the numeric date or datetime values to the sentinel date and units that stata uses. When i tried, it said type mismatch i have tried the real and the encode commands, none of. On april 23, 2014, statalist moved from an email list to a forum, based at.