How do I convert factors to numeric?
R FAQIt may happen that when reading numeric data into R (usually, when reading in a file), they come in as factors. If f is such a factor object, you can use as.numeric(as.character(f)) to get the numbers back. More efficient, but harder to remember, is as.numeric(levels(f))[as.integer(f)] In any case, do not call as.numeric() or their likes directly for the task at hand (as as.numeric() or unclass() give the internal codes).
Related QuestionsHow can I convert?
US to UK Moving FAQTo have a US item run under UK current you need to buy a transformer, a product that you plug into the wall and has a US-style jack at the other end. The transformer will "step down" in voltage from 240 to 120v. From there you may want to plug in a US-style power strip and provide current for sev eral products. Next you need to consider how many watts your transformer is providing (all transformers should clearly indicate this).
Related QuestionsCan I use nominal attributes in addition to numeric attributes?
Gepsoft - Frequently Asked QuestionsIt is possible to use GeneXproTools to solve problems with nominal values, such as Yes and No. For that you'll just have to convert them into numbers, for instance, 1 and 0 or 1 and -1 for Yes and No, respectively. Is there a way to weight the data cases? I would like to be able to process the data I'm using by weighting it. The data that I am working with contains both very high quality cases and some that are not as accurate.
Related QuestionsWhat is the "double notation" (text/numeric) of values?
FAQ 5In STATISTICA, each value may have two identities: numeric (e.g., 1) and text (e.g., Male). This double notation simplifies the use of text values. For example, when entering data, you could enter the values 1 and 2 in variable Gender to refer to males and females, respectively. Later, you can type Male into any cell containing a 1, and at the point when you complete the entry, all 1's in this column will automatically change to Male.
Related QuestionsWhat is a numeric risk level?
Texas Department of Public Safety - Courtesy, Service, Prote...The numeric risk level indicates the level of risk a sex offender poses to the community. A numeric risk level is assigned to each sex offender when the offender is released from a penal institution or placed on community supervision or juvenile probation. It is determined by using the sex offender screening tool adopted by the Risk Assessment Review Committee.
Related QuestionsCan a domain name be all numeric?
GoeShopSince the numerals 0-9 are acceptable characters for domain names in any position and any order, yes you can register an all-numeric domain name.
Related QuestionsWhat is numeric promotion?
JAVA interview questionsNumeric promotion is the conversion of a smaller numeric type to a larger numeric type, so that integer and floating-point operations may take place. In numerical promotion, byte, char, and short values are converted to int values. The int values are also converted to long values, if necessary. The long and float values are converted to double values, as required.
Related QuestionsAre there other risk factors?
Facts About Erectile Dysfunction (ED) - All About EDSome "lifestyle habits" can affect your erections, too. These include smoking, drinking too much alcohol and being overweight. It is a good idea for your overall health to try and quit smoking, drink only in moderation and reach and maintain a healthy weight.
Related QuestionsFrequently Asked Questions About Breast Cancer | Advocate He...The number one risk factor is being female. While family history, the age at the onset and completion of menstruation, the number of full term pregnancies, and prior history of benign breast biopsies are believed to increase your risk, the majority of breast cancers occur in women with NO risk factors. Your chances of getting breast cancer increase with age.Related Questions
Are there other factors?
S Dental Care - World Class Dentistry in Moscow, Russia: Fre...Yes. A diet low in nutrients can diminish the body's ability to fight infection. Smokers and chewing tobacco users have more irritation to gum tissues than those who don't, while stress can also affect the ability to ward off disease. Diseases that interfere with the body's immune system, such as leukemia and AIDS, may worsen the condition of the gums. In patients with uncontrolled diabetes, where the body is more prone to infection, gum disease is more severe or harder to control.
Related QuestionsAre There Any Psychological Factors?
Reference Article : Commonly Asked Questions: Anorexia Nervo...People diagnosed with Anorexia often tie their self-esteem into their ability to lose weight and stay thin. They view their weight loss as a sign of their self-worth. Weight gain is seen as a sign of weakness, poor self-discipline, and failure. Many folks with Anorexia seem obsessed or preoccupied with thoughts of food. Some may count calories or weigh every bite of food that they intend to eat. Others may collect recipes or hide away large stashes of food.
Related QuestionsNUblog archives: June 2000 (contenu.nu)If we think about factors we can control, though, shouldn't it be obvious to seasoned Web designers and researchers that a successful site has to: We take these factors all together at once and arrive at a gestalt. boo was slow, looked great, offered nothing of real relevance to genuine consumers (the wares were too twee and overpriced), was actively unusable, and told you to get lost if you used a Mac (and failed with any combination of graphics, Java, or Flash turned off).Related Questions
Why does the base unit for mass, the kilogram, have a numeric prefix?
FAQ: Frequently Asked Questions about the metric systemWhen the metric system was originally developed, the standard unit for mass was the mass of a liter of water at the ice point - basically the same as today's kilogram, although at the time it was called the "grave." After the French Revolution, the new government decided that this unit was inconveniently large, since many mass measurements involved much smaller masses.
Related QuestionsHow can I get the numeric (character set) value corresponding to a character, or vice versa?
Infrequently Asked Questions in comp.lang.cThe obvious way is to write a function to do the conversion. (Error checking has been omitted for brevity.
Related QuestionsFrequently Asked Questionsquot;While many Christian Churches teach portions of the gospel, we alone offer all the knowledge necessary to become Christlike and receive the fullness of salvation.Related Questions
Auto LPG - Power with economy - FAQThere are many reasons why you should have your vehicle converted to run on LPG some of which are listed below. Due to LPG car's reduced running cost, LPG cars sell at a premium. Also due to our warranty being transferable selling your LPG vehicle will be easier. top Car manufacturers provide cars which run on LPG so voiding the warranty is not because of the technology. Our LPG kits are a proven technology.Related Questions
Can I merge the long value labels (or text/numeric value assignments) from two files?
FAQ 5Yes, when you select the Merge files option in the Data Management module (see above), in addition to the Merge Cases and Merge Variables, you will be able to choose the Merge Text Values option. In the subsequent dialog you will be able to select the way in which the text values from the two files are to be merged. Spreadsheet formulas. To perform single-line data transformation and recoding operations on single variables, you can use the data spreadsheet formulas.
Related QuestionsWhat is the numeric range of positive antigliadin antibody results?
Our antibody tests range numerically from a positive value of 10 to as high as 350 Units. The average positive value is about 45 Units. The "units" are based on the amount of antibody detected in the assay which is reflected by more color developing as the result of a color-generating chemical reaction. Thus, the more antibody present, the higher the units of positivity.
Related QuestionsAre the numeric values of antigliadin antibody a measure of severity?
mentioned above, the numeric value of antibody is not necessarily a measure of severity of how your body is reacting to gluten, or the resultant damage of the reaction. This is because the main perpetrator of the immune response to gluten is not antibody but T lymphocytes (T cells) producing tissue-damaging chemicals called cytokines and chemokines. How much antibody is produced at the stimulus of T cells differs in different people.
Related QuestionsHow do I pass numeric parameters to a program?
IBM System i - Advanced Job Scheduler for i5/OS - Frequently...This example deals with passing a 6-digit number (123456) to a program expecting the parameter to be numeric. In this example the number is represented in hexadecimal and the F is the signed bit. The extra zero at the beginning of the number is needed to make the hexadecimal representation an even number of bits. You may have a job flow where monthly processing jobs are to run after weekly processing. You may even have more weekly jobs to run after the monthly jobs.
Related QuestionsWhy should I get an alpha-numeric pager?
UW Medical Center TeleservicesThe Teleservices computer system can process pages to alpha pages much more efficiently. They are needed for group alerts during disaster. In addition, they give the user more information about their pages.Back to top No, for someone to be added to the staff paging directory, Steve Weygint must be notified at 598-6050 or via e-mail at comcntr@u.washington.edu.Back to top
Related QuestionsDoes the ID of the Stock/Part have to be numeric ?
PLUS 2D : Nesting Software FAQThe ID of the stocks and parts can be made of any alphanumeric characters. Only keep in mind that the ID's have to be unique.
Related QuestionsHow does numeric paging work?
Callers will receive an option, when they reach your voicemail, to leave a numeric page instead of a voicemail message.
Related QuestionsWhat does the IS NUMERIC clause establish ?
CLIENT INTERVIEW QUESTION BANK (MAINFRAME)IS NUMERIC can be used on alphanumeric items, signed numeric & packed decimal items and unsigned numeric & packed decimal items. IS NUMERIC returns TRUE if the item only consists of 0-9. However, if the item being tested is a signed item, then it may contain 0-9, + and - .
Related QuestionsWhat are some of the factors that contribute to overweight and obesity?
Obesity and Overweight: Frequently Asked Questions (FAQs) | ...Researchers have found that several factors can contribute to the likelihood of someone’s becoming overweight or obese. Behaviors. What people eat and their level of physical activity help determine whether they will gain weight. A number of factors can influence diet and physical activity, including personal characteristics of the individual, the individual’s environment, cultural attitudes, and financial situation. Genetics.
Related QuestionsHow did I get this disease - are there risk factors?
Macular DegenerationThe cause of AMD is unknown. Smoking is the only proven risk factor. Excessive sun exposure, high blood pressure and a diet low in certain vitamins, minerals and antioxidants have been suspected. They have not been proven to predispose to AMD.
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