(Nathan Yau of Flowing Data, Dec 5, 2017)

Data can provide you with important information, but when the collection process is flawed, there’s not much you can do. Ken Schwencke, reporting for ProPublica, researched the tiered system that the FBI relies on to gather hate crime data for the United States:

“Under a federal law passed in 1990, the FBI is required to track and tabulate crimes in which there was ‘manifest evidence of prejudice’ against a host of protected groups, regardless of differences in how state laws define who’s protected. The FBI, in turn, relies on local law enforcement agencies to collect and submit this data, but can’t compel them to do so.”

This is a link to the ProPublica Article: https://www.propublica.org/article/why-america-fails-at-gathering-hate-crime-statistics

Here is a data visualization of where hate crimes do NOT get reported around the country (Ken Schwencke, 2017): https://projects.propublica.org/graphics/hatecrime-map

So now we know that there is possible bias in the dataset, what can we do with it?

library(tidyverse)
## -- Attaching packages --------------------------------------- tidyverse 1.3.0 --
## v ggplot2 3.3.3     v purrr   0.3.4
## v tibble  3.0.6     v dplyr   1.0.3
## v tidyr   1.1.2     v stringr 1.4.0
## v readr   1.4.0     v forcats 0.5.1
## -- Conflicts ------------------------------------------ tidyverse_conflicts() --
## x dplyr::filter() masks stats::filter()
## x dplyr::lag()    masks stats::lag()
library(tinytex)
setwd("C:/Users/Haley/Desktop")
hatecrimes <- read_csv("hateCrimes2010.csv")
## 
## -- Column specification --------------------------------------------------------
## cols(
##   .default = col_double(),
##   County = col_character(),
##   `Crime Type` = col_character()
## )
## i Use `spec()` for the full column specifications.

Clean up the Data:

Make all headers lowercase and remove spaces

Since there are 44 variables in this dataset, use “summary” to decide which hatecrimes to focus on. In output of summary, look at min and max

names(hatecrimes) <-tolower(names(hatecrimes))
names(hatecrimes) <- gsub(" ", "", names(hatecrimes))
str(hatecrimes)
## spec_tbl_df [423 x 44] (S3: spec_tbl_df/tbl_df/tbl/data.frame)
##  $ county                                  : chr [1:423] "Albany" "Albany" "Allegany" "Bronx" ...
##  $ year                                    : num [1:423] 2016 2016 2016 2016 2016 ...
##  $ crimetype                               : chr [1:423] "Crimes Against Persons" "Property Crimes" "Property Crimes" "Crimes Against Persons" ...
##  $ anti-male                               : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-female                             : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-transgender                        : num [1:423] 0 0 0 4 0 0 0 0 0 0 ...
##  $ anti-genderidentityexpression           : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-age*                               : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-white                              : num [1:423] 0 0 0 1 1 0 0 0 0 0 ...
##  $ anti-black                              : num [1:423] 1 2 1 0 0 1 0 1 0 2 ...
##  $ anti-americanindian/alaskannative       : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-asian                              : num [1:423] 0 0 0 0 0 1 0 0 0 0 ...
##  $ anti-nativehawaiian/pacificislander     : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-multi-racialgroups                 : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-otherrace                          : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-jewish                             : num [1:423] 0 0 0 0 1 0 1 0 0 0 ...
##  $ anti-catholic                           : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-protestant                         : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-islamic(muslim)                    : num [1:423] 1 0 0 6 0 0 0 0 1 0 ...
##  $ anti-multi-religiousgroups              : num [1:423] 0 1 0 0 0 0 0 0 0 0 ...
##  $ anti-atheism/agnosticism                : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-religiouspracticegenerally         : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-otherreligion                      : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-buddhist                           : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-easternorthodox(greek,russian,etc.): num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-hindu                              : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-jehovahswitness                    : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-mormon                             : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-otherchristian                     : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-sikh                               : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-hispanic                           : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-arab                               : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-otherethnicity/nationalorigin      : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-non-hispanic*                      : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-gaymale                            : num [1:423] 1 0 0 8 0 1 0 0 0 0 ...
##  $ anti-gayfemale                          : num [1:423] 0 0 0 1 0 0 0 0 0 0 ...
##  $ anti-gay(maleandfemale)                 : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-heterosexual                       : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-bisexual                           : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-physicaldisability                 : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ anti-mentaldisability                   : num [1:423] 0 0 0 0 0 0 0 0 0 0 ...
##  $ totalincidents                          : num [1:423] 3 3 1 20 2 3 1 1 1 2 ...
##  $ totalvictims                            : num [1:423] 4 3 1 20 2 3 1 1 1 2 ...
##  $ totaloffenders                          : num [1:423] 3 3 1 25 2 3 1 1 1 2 ...
##  - attr(*, "spec")=
##   .. cols(
##   ..   County = col_character(),
##   ..   Year = col_double(),
##   ..   `Crime Type` = col_character(),
##   ..   `Anti-Male` = col_double(),
##   ..   `Anti-Female` = col_double(),
##   ..   `Anti-Transgender` = col_double(),
##   ..   `Anti-Gender Identity Expression` = col_double(),
##   ..   `Anti-Age*` = col_double(),
##   ..   `Anti-White` = col_double(),
##   ..   `Anti-Black` = col_double(),
##   ..   `Anti-American Indian/Alaskan Native` = col_double(),
##   ..   `Anti-Asian` = col_double(),
##   ..   `Anti-Native Hawaiian/Pacific Islander` = col_double(),
##   ..   `Anti-Multi-Racial Groups` = col_double(),
##   ..   `Anti-Other Race` = col_double(),
##   ..   `Anti-Jewish` = col_double(),
##   ..   `Anti-Catholic` = col_double(),
##   ..   `Anti-Protestant` = col_double(),
##   ..   `Anti-Islamic (Muslim)` = col_double(),
##   ..   `Anti-Multi-Religious Groups` = col_double(),
##   ..   `Anti-Atheism/Agnosticism` = col_double(),
##   ..   `Anti-Religious Practice Generally` = col_double(),
##   ..   `Anti-Other Religion` = col_double(),
##   ..   `Anti-Buddhist` = col_double(),
##   ..   `Anti-Eastern Orthodox (Greek, Russian, etc.)` = col_double(),
##   ..   `Anti-Hindu` = col_double(),
##   ..   `Anti-Jehovahs Witness` = col_double(),
##   ..   `Anti-Mormon` = col_double(),
##   ..   `Anti-Other Christian` = col_double(),
##   ..   `Anti-Sikh` = col_double(),
##   ..   `Anti-Hispanic` = col_double(),
##   ..   `Anti-Arab` = col_double(),
##   ..   `Anti-Other Ethnicity/National Origin` = col_double(),
##   ..   `Anti-Non-Hispanic*` = col_double(),
##   ..   `Anti-Gay Male` = col_double(),
##   ..   `Anti-Gay Female` = col_double(),
##   ..   `Anti-Gay (Male and Female)` = col_double(),
##   ..   `Anti-Heterosexual` = col_double(),
##   ..   `Anti-Bisexual` = col_double(),
##   ..   `Anti-Physical Disability` = col_double(),
##   ..   `Anti-Mental Disability` = col_double(),
##   ..   `Total Incidents` = col_double(),
##   ..   `Total Victims` = col_double(),
##   ..   `Total Offenders` = col_double()
##   .. )

Select only certain hate-crimes

Only want to look at hate-crimes with max number of 9 or more, focusing on the most prominent

hatecrimes2 <- hatecrimes %>% 
  select(county, year, `anti-black`, 'anti-white', `anti-jewish`, 'anti-catholic','anti-age*','anti-islamic(muslim)', 'anti-gaymale', 'anti-hispanic') %>%
  group_by(county, year)
head(hatecrimes2)
## # A tibble: 6 x 10
## # Groups:   county, year [4]
##   county  year `anti-black` `anti-white` `anti-jewish` `anti-catholic`
##   <chr>  <dbl>        <dbl>        <dbl>         <dbl>           <dbl>
## 1 Albany  2016            1            0             0               0
## 2 Albany  2016            2            0             0               0
## 3 Alleg~  2016            1            0             0               0
## 4 Bronx   2016            0            1             0               0
## 5 Bronx   2016            0            1             1               0
## 6 Broome  2016            1            0             0               0
## # ... with 4 more variables: `anti-age*` <dbl>, `anti-islamic(muslim)` <dbl>,
## #   `anti-gaymale` <dbl>, `anti-hispanic` <dbl>

Check the dimensions and the summary to make sure no missing values

dim(hatecrimes2)
## [1] 423  10
summary(hatecrimes2)
##     county               year        anti-black       anti-white     
##  Length:423         Min.   :2010   Min.   : 0.000   Min.   : 0.0000  
##  Class :character   1st Qu.:2011   1st Qu.: 0.000   1st Qu.: 0.0000  
##  Mode  :character   Median :2013   Median : 1.000   Median : 0.0000  
##                     Mean   :2013   Mean   : 1.761   Mean   : 0.3357  
##                     3rd Qu.:2015   3rd Qu.: 2.000   3rd Qu.: 0.0000  
##                     Max.   :2016   Max.   :18.000   Max.   :11.0000  
##   anti-jewish     anti-catholic       anti-age*       anti-islamic(muslim)
##  Min.   : 0.000   Min.   : 0.0000   Min.   :0.00000   Min.   : 0.0000     
##  1st Qu.: 0.000   1st Qu.: 0.0000   1st Qu.:0.00000   1st Qu.: 0.0000     
##  Median : 0.000   Median : 0.0000   Median :0.00000   Median : 0.0000     
##  Mean   : 3.981   Mean   : 0.2695   Mean   :0.05201   Mean   : 0.4704     
##  3rd Qu.: 3.000   3rd Qu.: 0.0000   3rd Qu.:0.00000   3rd Qu.: 0.0000     
##  Max.   :82.000   Max.   :12.0000   Max.   :9.00000   Max.   :10.0000     
##   anti-gaymale    anti-hispanic    
##  Min.   : 0.000   Min.   : 0.0000  
##  1st Qu.: 0.000   1st Qu.: 0.0000  
##  Median : 0.000   Median : 0.0000  
##  Mean   : 1.499   Mean   : 0.3735  
##  3rd Qu.: 1.000   3rd Qu.: 0.0000  
##  Max.   :36.000   Max.   :17.0000

Use Facet_Wrap

Use the package “tidyr” to convert dataset from wide to long with the command “gather” It will take each column’s hate-crime type into one column called “id”. Then each cell will go into the new column, “crimecount”. We are doing this for the quantitative variables.

hatecrimeslong <- hatecrimes2 %>%
  tidyr::gather("id", "crimecount", 3:10)

hatecrimesplot <- hatecrimeslong %>%
  ggplot(., aes(year, crimecount))+
  geom_point()+
  aes(color = id)+
  facet_wrap(~id)
hatecrimesplot

Look deepter into crimes against blacks, gay males and jews

Let’s filter out the top 3 highest rates of offenses reported from the data above.

hatenew <- hatecrimeslong %>%
  filter( id=="anti-black" | id=="anti-jewish" | id == "anti-gaymale") %>%
  group_by(year, county) %>%
  arrange(desc(crimecount))
hatenew
## # A tibble: 1,269 x 4
## # Groups:   year, county [277]
##    county   year id          crimecount
##    <chr>   <dbl> <chr>            <dbl>
##  1 Kings    2012 anti-jewish         82
##  2 Kings    2016 anti-jewish         51
##  3 Suffolk  2014 anti-jewish         48
##  4 Suffolk  2012 anti-jewish         48
##  5 Kings    2011 anti-jewish         44
##  6 Kings    2013 anti-jewish         41
##  7 Kings    2010 anti-jewish         39
##  8 Nassau   2011 anti-jewish         38
##  9 Suffolk  2013 anti-jewish         37
## 10 Nassau   2016 anti-jewish         36
## # ... with 1,259 more rows

Plot these three types of hate crimes together

-position = “dodge” makes side-by-side bars rather than staked bars - stat = “identify” allows you to plot each set of bars each year between 2010 and 2016 ggtitle gives plot a title labs gives a title to the legend

plot2 <- hatenew %>%
  ggplot()+
  geom_bar(aes(x=year, y=crimecount, fill=id),
           position = "dodge", stat = "identity")+
  ggtitle("Hate Crime Type in NY Counties Between 2010 - 2016")+
  ylab("Number of Hate Crime Incidents")+
  labs(fill = "Hate Crime Type")
plot2

Observe above that the hate crimes against jews spiked in 2012. All other years is was relatively consistent with an upward trend. The anti-gaymales also have an upward trend. There seems to be a downward trend in hate crimes against blacks during this period.

What about the counties?

Make bar graph by county instead of year

plot3 <- hatenew %>%
  ggplot() +
  geom_bar(aes(x=county, y=crimecount, fill = id),
      position = "dodge", stat = "identity") +
  ggtitle("Hate Crime Type in NY Counties Between 2010-2016") +
  ylab("Number of Hate Crime Incidents") + 
  labs(fill = "Hate Crime Type")
plot3

## The graph above is hard to read! Let’s look at the 5 highest number counties where there are incidents. use “group_by” to group each row by counties use summarize to get the total sum of incidents by county use "arrange(desc) to arrange sums of total incidents by counties in descending order use top_n to list the 5 counties with highest total incidents

counties <- hatenew %>%
  group_by(county, year)%>%
  summarize(sum = sum(crimecount)) %>%
  arrange(desc(sum)) 
## `summarise()` has grouped output by 'county'. You can override using the `.groups` argument.
counties
## # A tibble: 277 x 3
## # Groups:   county [60]
##    county    year   sum
##    <chr>    <dbl> <dbl>
##  1 Kings     2012   136
##  2 Kings     2010   110
##  3 Kings     2016   101
##  4 Kings     2013    96
##  5 Kings     2014    94
##  6 Kings     2015    90
##  7 Kings     2011    86
##  8 New York  2016    86
##  9 Suffolk   2012    83
## 10 New York  2013    75
## # ... with 267 more rows

Creat barplot above but only for the 5 counties in 2012 with the highest incidents of hatecrimes

plot4 <- hatenew %>%
  filter(county =="Kings" | county =="New York" | county == "Suffolk" | county == "Nassau" | county == "Queens") %>%
  ggplot() +
  geom_bar(aes(x=county, y=crimecount, fill = id),
      position = "dodge", stat = "identity") +
  labs(ylab = "Number of Hate Crime Incidents",
    title = "5 Counties in NY with Highest Incidents of Hate Crimes",
    subtitle = "Between 2010-2016", 
    fill = "Hate Crime Type")
plot4

## How wouldcalculations be affects by looking at hate crimes in counties per by year by population densities

setwd("C:/Users/Haley/Desktop")
nypop <- read_csv("newyorkpopulation.csv")
## 
## -- Column specification --------------------------------------------------------
## cols(
##   Geography = col_character(),
##   `2010` = col_double(),
##   `2011` = col_double(),
##   `2012` = col_double(),
##   `2013` = col_double(),
##   `2014` = col_double(),
##   `2015` = col_double(),
##   `2016` = col_double()
## )

Clean the county name to match the other datasets

Rename variable “geography” to “counties” to match the other dataset.

nypop$Geography <- gsub(" , New York", "", nypop$Geography)
nypop$Geography <- gsub("County", "", nypop$Geography)
nypoplong <- nypop %>%
  rename(county = Geography) %>%
  gather("year", "population", 2:8) 
nypoplong$year <- as.double(nypoplong$year)
head(nypoplong)
## # A tibble: 6 x 3
##   county                  year population
##   <chr>                  <dbl>      <dbl>
## 1 Albany , New York       2010     304078
## 2 Allegany , New York     2010      48949
## 3 Bronx , New York        2010    1388240
## 4 Broome , New York       2010     200469
## 5 Cattaraugus , New York  2010      80249
## 6 Cayuga , New York       2010      79844

Focus on 2012

Let’s look at the populations of the counties in 2012 since that’s the year with the highest hate crimes.

nypoplong12 <- nypoplong %>%
  filter(year == 2012) %>%
  arrange(desc(population)) %>%
  head(10)
nypoplong12$county<-gsub(" , New York","",nypoplong12$county)
nypoplong12
## # A tibble: 10 x 3
##    county       year population
##    <chr>       <dbl>      <dbl>
##  1 Kings        2012    2572282
##  2 Queens       2012    2278024
##  3 New York     2012    1625121
##  4 Suffolk      2012    1499382
##  5 Bronx        2012    1414774
##  6 Nassau       2012    1350748
##  7 Westchester  2012     961073
##  8 Erie         2012     920792
##  9 Monroe       2012     748947
## 10 Richmond     2012     470978

4/5 of counties with highest populations were listed has highest # of hate crimes. Recall total hate crime counts: Kings 713 New York 459 Suffolk 360 Nassau 298 Queens 235

Filter hate crimes for 2012

counties12 <- counties %>%
  filter(year == 2012) %>%
  arrange(desc(sum)) 
counties12
## # A tibble: 41 x 3
## # Groups:   county [41]
##    county       year   sum
##    <chr>       <dbl> <dbl>
##  1 Kings        2012   136
##  2 Suffolk      2012    83
##  3 New York     2012    71
##  4 Nassau       2012    48
##  5 Queens       2012    48
##  6 Erie         2012    28
##  7 Bronx        2012    23
##  8 Richmond     2012    18
##  9 Multiple     2012    14
## 10 Westchester  2012    13
## # ... with 31 more rows

Join hate crimes data with NY for 2012

datajoin <- counties12 %>%
  full_join(nypoplong12, by=c("county", "year"))
datajoin
## # A tibble: 41 x 4
## # Groups:   county [41]
##    county       year   sum population
##    <chr>       <dbl> <dbl>      <dbl>
##  1 Kings        2012   136    2572282
##  2 Suffolk      2012    83    1499382
##  3 New York     2012    71    1625121
##  4 Nassau       2012    48    1350748
##  5 Queens       2012    48    2278024
##  6 Erie         2012    28     920792
##  7 Bronx        2012    23    1414774
##  8 Richmond     2012    18     470978
##  9 Multiple     2012    14         NA
## 10 Westchester  2012    13     961073
## # ... with 31 more rows

Calculate the rate of incidents per 100,000. Then arrange in descending order

datajoinrate <- datajoin %>%
  mutate(rate = sum/population*100000) %>%
  arrange(desc(rate))
datajoinrate
## # A tibble: 41 x 5
## # Groups:   county [41]
##    county       year   sum population  rate
##    <chr>       <dbl> <dbl>      <dbl> <dbl>
##  1 Suffolk      2012    83    1499382 5.54 
##  2 Kings        2012   136    2572282 5.29 
##  3 New York     2012    71    1625121 4.37 
##  4 Richmond     2012    18     470978 3.82 
##  5 Nassau       2012    48    1350748 3.55 
##  6 Erie         2012    28     920792 3.04 
##  7 Queens       2012    48    2278024 2.11 
##  8 Bronx        2012    23    1414774 1.63 
##  9 Westchester  2012    13     961073 1.35 
## 10 Monroe       2012     5     748947 0.668
## # ... with 31 more rows
dt <- datajoinrate[,c("county","rate")]
dt
## # A tibble: 41 x 2
## # Groups:   county [41]
##    county       rate
##    <chr>       <dbl>
##  1 Suffolk     5.54 
##  2 Kings       5.29 
##  3 New York    4.37 
##  4 Richmond    3.82 
##  5 Nassau      3.55 
##  6 Erie        3.04 
##  7 Queens      2.11 
##  8 Bronx       1.63 
##  9 Westchester 1.35 
## 10 Monroe      0.668
## # ... with 31 more rows

Final evaluations:

  1. The Bronx was lower then expected incidents of hate crimes reltive to its population density
  2. Kings County had a spike in hate crimes against jews in 2012
  3. More findings in this link: https://www.criminaljustice.ny.gov/crimnet/ojsa/hate-crime-in-nys-2012-annual-report.pdf ## This was such a fun project to work through :)