Publications by Harold Nelson
Chapter 5 Part 2
Chapter 5 Part 2 Harold Nelson 2023-02-22 Setup library(sf) ## Linking to GEOS 3.11.0, GDAL 3.5.3, PROJ 9.1.0; sf_use_s2() is TRUE library(rgdal) ## Loading required package: sp ## Please note that rgdal will be retired by the end of 2023, ## plan transition to sf/stars/terra functions using GDAL and PROJ ## at your earliest c...
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Chapter 5 Notes Part 1
Chapter 5 Notes Part 1 Harold Nelson 2023-02-13 Setup library(sf) ## Linking to GEOS 3.11.0, GDAL 3.5.3, PROJ 9.1.0; sf_use_s2() is TRUE library(rgdal) ## Loading required package: sp ## Please note that rgdal will be retired by the end of 2023, ## plan transition to sf/stars/terra functions using GDAL and PROJ ## at your earl...
1392 sym Python (10002 sym/46 pcs) 7 img
Explore OAW23
Explore OAW23 Harold Nelson 2023-02-15 Setup library(tidyverse) ## ── Attaching packages ─────────────────────────────────────── tidyverse 1.3.2 ── ## ✔ ggplot2 3.3.6 ✔ purrr 0.3.4 ## ✔ tibble 3.1.8 ✔ dplyr 1.0.10 ## ✔ tidyr 1.2.1 ...
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Boys and Girls
Boys and Girls Harold Nelson 2023-02-13 Setup library(tidyverse) ## ── Attaching packages ─────────────────────────────────────── tidyverse 1.3.2 ── ## ✔ ggplot2 3.3.6 ✔ purrr 0.3.4 ## ✔ tibble 3.1.8 ✔ dplyr 1.0.10 ## ✔ tidyr 1.2.1 ...
347 sym Python (2801 sym/14 pcs)
Build OAW23
Build OAW23 Harold Nelson 2023-02-10 Setup library(tidyverse) ## ── Attaching packages ─────────────────────────────────────── tidyverse 1.3.2 ── ## ✔ ggplot2 3.3.6 ✔ purrr 0.3.4 ## ✔ tibble 3.1.8 ✔ dplyr 1.0.10 ## ✔ tidyr 1.2.1 ...
405 sym Python (6786 sym/21 pcs)
Leaflet Demo
Leaflet Demo Harold Nelson 2023-02-06 Problem Given a CSV file with the the name of a state, the latitude and longitude of its centroid, write an R program using the leaflet package to produce a map with popups at each centroid showing the name of the state. Solution library(leaflet) # Load data from CSV file states <- read.csv("State Centroid...
280 sym Python (258 sym/1 pcs)
Chapter 3 Extra
Chapter 3 Extra Harold Nelson 2023-02-01 Setup library(tidyverse) ## ── Attaching packages ─────────────────────────────────────── tidyverse 1.3.2 ── ## ✔ ggplot2 3.3.6 ✔ purrr 0.3.4 ## ✔ tibble 3.1.8 ✔ dplyr 1.0.10 ## ✔ tidyr 1.2.1...
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Chapter 3 Notes
Chapter 3 Notes Harold Nelson 2023-01-31 Setup library(tidyverse) ## ── Attaching packages ─────────────────────────────────────── tidyverse 1.3.2 ── ## ✔ ggplot2 3.3.6 ✔ purrr 0.3.4 ## ✔ tibble 3.1.8 ✔ dplyr 1.0.10 ## ✔ tidyr 1.2.1...
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GIS Chapter 1 Problems
Chapter 1 Problems Harold Nelson 2023-01-18 Problem 1 Create two new vectors, one containing all the odd numbers between 1 and 19, and the other containing all even numbers between 2 and 20. Add the two vectors element-wise to produce a single vector and then create a new vector that contains only numbers greater than 15. Finally, compute the m...
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WG Chapter 2
WG Chapter 2 Harold Nelson 2023-01-20 Setup library(tidyverse) ## ── Attaching packages ─────────────────────────────────────── tidyverse 1.3.2 ── ## ✔ ggplot2 3.3.6 ✔ purrr 0.3.4 ## ✔ tibble 3.1.8 ✔ dplyr 1.0.10 ## ✔ tidyr 1.2.1 ...
1455 sym Python (2316 sym/18 pcs) 6 img