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- **REMEMBER YOU ALWAYS HAVE TO RUN THIS FIRST CHUNK BEFORE YOU DO ANYTHING ELSE
- ```{r}
- #YOU WILL ALWAYS NEED THIS FIRST CHUNK. WE WILL ADD TO IT DURING THE SEMESTER.
- #THIS CHUNK LOADS THE LIBRARIES AND DATA THAT YOU NEED FOR YOUR WORK.
- library(aws.s3)
- library('lehmansociology')
- library('dplyr')
- s3load('gss100.Rdata', bucket = 'lehmansociologydata')
- gss100<- droplevels(gss100)
- ```
- BELOW WE WILL GET FREQUENCY TABLES AND MEASURES OF CENTRAL TENDENCY FOR VARIABLES AT DIFFERENT LEVELS OF MEASUREMENT.
- ```{r}
- frequency(gss100$race)
- summary(gss100$race)
- #Note: MODE needs to be capitalized, which is uncommon. Most of the time, commands will be lower case.
- MODE(gss100$race)
- ```
- WRITE 1-2 SENTENCES BELOW THAT INTERPRET THE RESULTS THAT YOU GET FROM RUNNING THE CHUNK ABOVE.
- MAKE NOTE OF THE LEVEL OF MEASUREMENT FOR THE VARIABLE RACE
- HOW DO THE RESULTS FOR SUMMARY DIFFER FROM THE RESULTS FOR FREQUENCY?
- ```{r}
- frequency(gss100$health)
- frequency(as.numeric(gss100$health))
- #WRITE A NOTE ABOUT WHAT HAPPENS WHEN YOU ADD as.numeric --WHAT IS THE DIFFERENCE BETWEEN THE RESULT FOR THE TWO LINES ABOVE?
- summary(gss100$health)
- MODE(gss100$health)
- median(as.numeric(gss100$health), na.rm=TRUE)
- ```
- WRITE 1-2 SENTENCES BELOW THAT INTERPRET THE RESULTS FROM RUNNING THE CHUNK ABOVE.
- WHAT IS THE LEVEL OF MEASUREMENT FOR HEALTH?
- HOW DO THE RESULTS FOR SUMMARY DIFFER FROM THE RESULTS FOR FREQUENCY?
- EXPLAIN WHY YOU NEED TO INCLUDE as.numeric AND na.rm=TRUE TO GET A MEDIAN FOR THIS VARIABLE AND
- EXPLAIN HOW YOU INTERPRET THE RESULT YOU GET WHEN YOU RUN THE LINE OF CODE FOR THE MEDIAN.
- ```{r}
- frequency(gss100$childs)
- summary(gss100$childs)
- MODE(gss100$childs)
- median(gss100$childs, na.rm=TRUE)
- mean(gss100$childs, na.rm=TRUE)
- ```
- WHAT IS THE LEVEL OF MEASUREMENT FOR THE VARIABLE CHILDS?
- WRITE 1-2 SENTENCES BELOW THAT INTERPRET THE RESULTS THAT YOU GET FROM RUNNING THE CHUNK ABOVE.
- EXPLAIN WHY YOU NEED na.rm=TRUE. EXPLAIN TO YOURSELF WHICH COMMANDS GIVE YOU THE INFORMATION YOU NEED,
- WHICH COMMANDS YOU MIGHT NOT NEED, ETC.
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