#1
library(tidycensus)

census_api_key("844a362e7335694a2b5aef39ff772e6544fb127b", overwrite = TRUE, install= TRUE)
## Your original .Renviron will be backed up and stored in your R HOME directory if needed.
## Your API key has been stored in your .Renviron and can be accessed by Sys.getenv("CENSUS_API_KEY"). 
## To use now, restart R or run `readRenviron("~/.Renviron")`
## [1] "844a362e7335694a2b5aef39ff772e6544fb127b"
readRenviron("~/.Renviron")
Sys.getenv("CENSUS_API_KEY")
## [1] "844a362e7335694a2b5aef39ff772e6544fb127b"
var <- c('B19013_001E','B03002_012E','B03002_004E','B01001_002E',
         'B01001_026E', 'B01001_001E', 'B01002_001E') 



Victoria_segregation <- get_acs(geography = "tract", variables = var, county = "Victoria",
                               state = "TX",output="wide", geometry = TRUE)
## Getting data from the 2017-2021 5-year ACS
## Downloading feature geometry from the Census website.  To cache shapefiles for use in future sessions, set `options(tigris_use_cache = TRUE)`.
## 
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#2
names(Victoria_segregation)[3] <- 'MedianHouseholdIncome'
names(Victoria_segregation)[5] <- 'Hispanic Population'
names(Victoria_segregation)[7] <- 'NonHispanicAfricanAmericanPopulation'
names(Victoria_segregation)[9] <- 'Male'
names(Victoria_segregation)[11] <- 'Female'
names(Victoria_segregation)[13] <- 'Total Population'
names(Victoria_segregation)[15] <- 'Median Age of County'


Victoria_segregation$B19013_001M<-NULL
Victoria_segregation$B03002_012M<-NULL
Victoria_segregation$B03002_004M<-NULL
Victoria_segregation$B01001_002M<-NULL
Victoria_segregation$B01001_026M<-NULL
Victoria_segregation$B01001_001M<-NULL
Victoria_segregation$B01002_001M<-NULL



#3
write.csv(Victoria_segregation, "C:/Users/Mario/Documents/Wei CLASS Folder/Victoria_seg3.csv")

#4 Scatter Plot 
library(ggplot2)

ggplot(data = Victoria_segregation, aes(x = NonHispanicAfricanAmericanPopulation, 
                                       y = MedianHouseholdIncome)) + 
  geom_point()
## Warning: Removed 1 rows containing missing values (`geom_point()`).

#5 Histogram

ggplot(data.frame(x =Victoria_segregation$`Median Age of County`), aes(x)) +
  geom_histogram(binwidth = 5, fill = "lightblue", color = "black") +
  labs(
    title = "Histogram",
    x = "Age",
    y = "Tract"
  )
## Warning: Removed 1 rows containing non-finite values (`stat_bin()`).

#6
library(ggplot2)

#I know you asked for Total Population but my county has "NA" which for a row, that causes an error
# Therefore, I use Hispanic Population to show you I know how to use funcation

df <- density(Victoria_segregation$`Hispanic Population`,)


plot(df, main="Probability Density Function", xlab="X Values", ylab="Density")

#7

cdf <- ecdf(Victoria_segregation$MedianHouseholdIncome)
plot(cdf, main = "Cumulative Density Function", xlab = "X Values", ylab = "CDF")

#8

boxplot(Victoria_segregation$MedianHouseholdIncome, main="Box Plot Example", ylab="Data Values") 

#9
library(sf)
## Linking to GEOS 3.11.2, GDAL 3.6.2, PROJ 9.2.0; sf_use_s2() is TRUE
library(tmap)
## The legacy packages maptools, rgdal, and rgeos, underpinning the sp package,
## which was just loaded, will retire in October 2023.
## Please refer to R-spatial evolution reports for details, especially
## https://r-spatial.org/r/2023/05/15/evolution4.html.
## It may be desirable to make the sf package available;
## package maintainers should consider adding sf to Suggests:.
## The sp package is now running under evolution status 2
##      (status 2 uses the sf package in place of rgdal)
## Breaking News: tmap 3.x is retiring. Please test v4, e.g. with
## remotes::install_github('r-tmap/tmap')
Victoria_segregation$percentage_Hisp <- 100*Victoria_segregation$`Hispanic Population`/Victoria_segregation$`Total Population`

tm_shape(Victoria_segregation) +tm_fill(col = "percentage_Hisp")+ tm_layout(title = "Hispanic Percent")

#10

Victoria_segregation$moreFemale <- Victoria_segregation$Female > Victoria_segregation$Male

tm_shape(Victoria_segregation) +tm_fill(col = "moreFemale")+ tm_layout(title = "More Female Population")

#11 Do not know how to do