Publications by Harold Nelson
Patterns in Olympia Weather 2
Patterns 2 Harold Nelson 2/24/2022 Setup Get the necessary packages and data. library(tidyverse) ## ── Attaching packages ─────────────────────────────────────── tidyverse 1.3.1 ── ## ✓ ggplot2 3.3.5 ✓ purrr 0.3.4 ## ✓ tibble 3.1.5 ✓ dplyr ...
1662 sym R (3487 sym/22 pcs) 4 img
Fertility 1
Fertility 1 Harold Nelson 02/27/2022 Setup library(tidyverse) ## ── Attaching packages ─────────────────────────────────────── tidyverse 1.3.1 ── ## ✓ ggplot2 3.3.5 ✓ purrr 0.3.4 ## ✓ tibble 3.1.5 ✓ dplyr 1.0.7 ## ✓ tidyr 1.1.4 �...
1596 sym R (3706 sym/27 pcs)
Fertility 2
Fertility 2 Harold Nelson 2/28/2022 Setup library(tidyverse) ## ── Attaching packages ─────────────────────────────────────── tidyverse 1.3.1 ── ## ✓ ggplot2 3.3.5 ✓ purrr 0.3.4 ## ✓ tibble 3.1.5 ✓ dplyr 1.0.7 ## ✓ tidyr 1.1.4 ✓...
1316 sym R (2972 sym/20 pcs)
Gender Mix
Gender Mix Harold Nelson 3/11/2022 Topic If a live birth occurs, what is the probability that the child is male? Most people would say 50%. That is close but not exactly right. Questions. What is the proportion of males in a given set of births? Does this vary by the age of the mother, the geographical location, or the race of the mother. Se...
1562 sym R (9017 sym/39 pcs) 5 img
Human Mortality Database 1
HMD Harold Nelson 3/14/2022 Human Mortality Database This is an initial exploration of the Human Mortality Database, which is at https://www.mortality.org/. Setup library(tidyverse) ## ── Attaching packages ─────────────────────────────────────── tidyverse 1.3.1...
862 sym R (2287 sym/18 pcs) 2 img
Twitter 3
Twitter 3 Harold Nelson 3/26/2022 Setup library(plyr) library(tidyverse) ## ── Attaching packages ─────────────────────────────────────── tidyverse 1.3.1 ── ## ✓ ggplot2 3.3.5 ✓ purrr 0.3.4 ## ✓ tibble 3.1.5 ✓ dplyr 1.0.7 ## ✓ tidyr 1...
1166 sym R (7190 sym/33 pcs) 4 img
Regression 2
Regression 2 Harold Nelson 4/3/2022 Setup library(tidyverse) ## ── Attaching packages ─────────────────────────────────────── tidyverse 1.3.1 ── ## ✓ ggplot2 3.3.5 ✓ purrr 0.3.4 ## ✓ tibble 3.1.5 ✓ dplyr 1.0.7 ## ✓ tidyr 1.1.4 ✓...
1574 sym R (7694 sym/32 pcs) 5 img
Regression 3
Regression 3 Harold Nelson 4/5/2022 Setup library(tidyverse) Dummy Variables A dummy variable has only two values, 0 and 1 or (FALSE or TRUE). This device is used in regression to mark the presence or absence of a condition. If one of these is used in the list of independent variables, the value of its coefficient is the amount added to the p...
2004 sym R (2216 sym/21 pcs)
Caret Spring 22
Caret Harold Nelson 04/20/2022 Caret The task is to predict the gender of a person based on other characteristics? This document works through several models using the caret package. It uses the cleaned version of the cdc data. The Data and Packages load("cdc2.Rdata") library(class) library(caret) ## Loading required package: ggplot2 ## Loadi...
1863 sym R (9822 sym/47 pcs)