Add here package to install list

* see #10
* also fix bad source file name

00-setup/01-installation.R

@@ -3,6 +3,7 @@ if(!require("natmanager")) install.packages("natmanager")
 # See http://natverse.org/install/ for details / troubleshooting
 natmanager::install("natverse")
 
+if(!require("here")) install.packages("here")
 if(!require("ggpubr")) install.packages("ggpubr")
 if(!require("reshape2")) install.packages("reshape2")
 if(!require("catnat")) remotes::install_github("jefferislab/catnat")

00-setup/02-packages.R

@@ -1,5 +1,7 @@
 # load the natverse, which includes packages like nat, nat.nblast, etc.
 library(natverse)
+
+# additional packages that we will use in these examples
 library(catnat)
 library(ggpubr)
 library(reshape2)

00-setup/03-pyramidalneuron.R

@@ -7,7 +7,9 @@
 # First of all, we need to load the packages we will be using
 # Make sure the location of the present R file is your working directory
 # See getwd()
-source("01-packages.R")
+setwd(here::here("00-setup"))
+
+source("02-packages.R")
 
 # Now let's read in that .swc file
 neuron = read.neuron("data/test/axon_traces_27_06_19_s4_c7_Pom.traces")