Publications by Daniel Lee
Document
Import Data flights ## # A tibble: 336,776 × 19 ## year month day dep_time sched_dep_time dep_delay arr_time sched_arr_time ## <int> <int> <int> <int> <int> <dbl> <int> <int> ## 1 2013 1 1 517 515 2 830 819 ## 2 2013 1 1 533 529 ...
187 sym Python (2727 sym/13 pcs)
Document
Coding basics R as a calculator 1000 / 10 ## [1] 100 x <- 1000 / 10 # x assignment symbol What’s in a name? Calling functions Use of TAB seq(from = 1, to = 10, by = 1) ## [1] 1 2 3 4 5 6 7 8 9 10 continuation character, + seq(from = 1, to = 10) ## [1] 1 2 3 4 5 6 7 8 9 10 Printing to screen y <- seq(from = 1, to = 10) y...
171 sym Python (229 sym/9 pcs)
Document
Coding basics R as a calculator 1000/10 ## [1] 100 x <- 1000 / 10 # x assignment symbol What’s in a name? Calling functions Use of TAB seq(from = 1, to = 10, by = 1) ## [1] 1 2 3 4 5 6 7 8 9 10 continuation character, + seq(from = 1, to = 10) ## [1] 1 2 3 4 5 6 7 8 9 10 Printing to screen y <- seq(from = 1, to = 10) y...
171 sym Python (229 sym/9 pcs)
Real World Applications 2
Analyze the data for your client with respect to timing depth duration of downturns in sale. Make a plot...
116 sym
Real World Applications 2
Analyze the data for your client with respect to timing depth duration of downturns in sale. Make a plot...
116 sym
chp 4
Coding basics R as a calculator 1000 / 10 ## [1] 100 x <- 1000 / 10 # x assignment symbol What’s in a name? Calling functions Use of TAB seq(from = 1, to = 10, by = 1) ## [1] 1 2 3 4 5 6 7 8 9 10 continuation character, + seq(from = 1, to = 10) ## [1] 1 2 3 4 5 6 7 8 9 10 Printing to screen y <- seq(from = 1, to = 10) ...
171 sym Python (231 sym/9 pcs)
Member Comment
Goal: Identify key issues among union members. Search for sentences in the members’ comments that contain a specific word or bigram of interest....
156 sym 2 img
Test publishing
Do your work here. library(tidyverse) ## ── Attaching core tidyverse packages ──────────────────────── tidyverse 2.0.0 ── ## ✔ dplyr 1.1.4 ✔ readr 2.1.5 ## ✔ forcats 1.0.0 ✔ stringr 1.5.1 ## ✔ ggplot2 3.5.1 ✔ tibble 3.2.1 ## ✔ lubridate 1.9.3 ✔ ...
26 sym R (1626 sym/4 pcs)
Apply Your Data 1
Import stock prices stocks <- tq_get(c("NKE", "COKE", "ULTA", "AMZN", "AApl"), get = "stock.prices", from = "2016-01-01") stocks ## # A tibble: 10,905 × 8 ## symbol date open high low close volume adjusted ## <chr> <date> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> ## 1 NKE 2016-01-04 61....
50 sym Python (1072 sym/3 pcs) 1 img
Code along 1
Welcome Ch1 Introduction The data science project workflow Prerequisites R RStudio r packages Install the tidyverse package Running R code 1+2 ## [1] 3 Getting help Google Stackoverflow Ch2 Introduction to Data Exploration Ch3 Data Visualization Set up library(tidyverse) ## ── Attaching core tidyverse packages ───────�...
1379 sym R (2309 sym/14 pcs) 7 img