Publications by Lisa Szydziak
HW4 Preprocessing 624 100221 LSzydziak
library(gmodels) library(ggpubr) ## Loading required package: ggplot2 library(dplyr) ## ## Attaching package: 'dplyr' ## The following objects are masked from 'package:stats': ## ## filter, lag ## The following objects are masked from 'package:base': ## ## intersect, setdiff, setequal, union library(ggplot2) library(corrplot) ##...
4684 sym R (32728 sym/137 pcs) 31 img
608 HW5 LSZYDZIAK 100621
Heights of adults. (7.7, p. 260) Researchers studying anthropometry collected body girth measurements and skeletal diameter measurements, as well as age, weight, height and gender, for 507 physically active individuals. The histogram below shows the sample distribution of heights in centimeters. What is the point estimate for the average height...
8903 sym R (1782 sym/51 pcs) 5 img
HW5 624 Exponential smoothing
library(fpp3) ## -- Attaching packages -------------------------------------------- fpp3 0.4.0 -- ## v tibble 3.1.4 v tsibble 1.0.1 ## v dplyr 1.0.7 v tsibbledata 0.3.0 ## v tidyr 1.1.3 v feasts 0.2.2 ## v lubridate 1.7.10 v fable 0.3.1 ## v ggplot2 3.3.5 ## -- Conflicts -----------...
6667 sym R (25069 sym/151 pcs) 27 img
hw 6 624
library(dplyr) ## ## Attaching package: 'dplyr' ## The following objects are masked from 'package:stats': ## ## filter, lag ## The following objects are masked from 'package:base': ## ## intersect, setdiff, setequal, union library(latex2exp) library(ggplot2) library(fabletools) library(fpp3) ## -- Attaching packages -----------...
5513 sym R (25385 sym/179 pcs) 61 img
hw 7 624
library(gmodels) library(ggpubr) ## Loading required package: ggplot2 library(dplyr) ## ## Attaching package: 'dplyr' ## The following objects are masked from 'package:stats': ## ## filter, lag ## The following objects are masked from 'package:base': ## ## intersect, setdiff, setequal, union library(ggplot2) library(corrplot) ##...
4382 sym R (35165 sym/128 pcs) 4 img
Final Project 606 LSzydziak 12/01/21
Overview Data Collection This nycflights13 r-package contains information about all flights that departed from NYC (e.g. EWR, JFK and LGA) to destinations in the United States, Puerto Rico, and the American Virgin Islands) in 2013: 336,776 flights in total. To help understand what causes delays, it also includes a number of other useful dataset...
8097 sym R (24227 sym/17 pcs) 42 img
Data 624 Final Project LSzydziak
Libraries library(kableExtra) library(tidyverse) library(ggplot2) library(dplyr) library(psych) library(caret) library(mice) library(randomForest) library(caTools) library(corrplot) library(class) library(rpart) library(AppliedPredictiveModeling) library(naniar) library(xgboost) library(DiagrammeR) library(readxl) library(writexl...
6123 sym R (27364 sym/59 pcs) 10 img 12 tbl
622 ML code
#install.packages("caret") library(dplyr) ## ## Attaching package: 'dplyr' ## The following objects are masked from 'package:stats': ## ## filter, lag ## The following objects are masked from 'package:base': ## ## intersect, setdiff, setequal, union library(caret) ## Loading required package: ggplot2 ## Loading required package: ...
635 sym R (7035 sym/38 pcs) 7 img
Week 2 ML
#install.packages("caret") #install.packages("caret", dependencies=c("Depends", "Suggests")) library(caret) ## Loading required package: ggplot2 ## Loading required package: lattice # attach the iris dataset to the environment data(iris) # rename the dataset dataset <- iris # define the filename-manual procedure #filename <- "iris.csv" ...
3449 sym R (7043 sym/22 pcs) 3 img
HW1 Machine Learning 622 LSzydziak 031722
Assignment Visit the following website and explore the range of sizes of this dataset (from 100 to 5 million records). https://eforexcel.com/wp/downloads-18-sample-csv-files-data-sets-for-testing-sales/ Based on your computer’s capabilities (memory, CPU), select 2 files you can handle (recommended one small, one large) Review the structure and ...
4138 sym R (101129 sym/77 pcs) 2 img