Last active
May 14, 2020 17:21
-
-
Save pvanheus/037b0487d2e666a1ca69c175164f2a2c to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
download.file(url = "https://ndownloader.figshare.com/files/2292169", | |
destfile = "data_raw/portal_data_joined.csv") | |
getwd() # show where I am | |
surveys <- read.csv("data_raw/portal_data_joined.csv") | |
head(surveys) | |
View(surveys) | |
weight_g <- c(10, 50, 30) | |
dim(surveys) | |
nrow(surveys) | |
ncol(surveys) | |
tail(surveys) | |
names(surveys) | |
?tail | |
rownames(surveys) | |
str(surveys) | |
summary(surveys) | |
surveys[1,1] | |
surveys[1, 6] | |
surveys[, 6] | |
str(surveys) | |
mean(na.omit(surveys[, 8])) | |
summary(surveys) | |
surveys[1:3, 7] | |
surveys[, -1] | |
surveys[,"species_id"] | |
View(surveys) | |
surveys[, c("species_id", "taxa")] | |
surveys[200,] | |
surveys_200 <- download.file(url = "https://ndownloader.figshare.com/files/2292169", | |
destfile = "data_raw/portal_data_joined.csv") | |
getwd() # show where I am | |
surveys <- read.csv("data_raw/portal_data_joined.csv") | |
head(surveys) | |
View(surveys) | |
weight_g <- c(10, 50, 30) | |
dim(surveys) | |
nrow(surveys) | |
ncol(surveys) | |
tail(surveys) | |
names(surveys) | |
?tail | |
rownames(surveys) | |
str(surveys) | |
summary(surveys) | |
surveys[1,1] | |
surveys[1, 6] | |
surveys[, 6] | |
str(surveys) | |
mean(na.omit(surveys[, 8])) | |
summary(surveys) | |
surveys[1:3, 7] | |
surveys[, -1] | |
surveys[,"species_id"] | |
View(surveys) | |
surveys[, c("species_id", "taxa")] | |
surveys[200,] | |
surveys_200 <- surveys[200, ] | |
sex <- factor(c("male", "female ", "female", "male")) # error - 3 factors | |
sex <- factor(c("male", "female", "female", "male")) | |
levels(sex) | |
nlevels(sex) | |
sex | |
sex <- factor(sex, levels = c("male", "female")) | |
sex | |
as.character(sex) | |
sex_chr <- as.character(sex) | |
year_fct <- factor(c(1990, 1983, 1977, 1998, 1990)) | |
as.numeric(year_fct) | |
as.character(year_fct) | |
as.numeric(as.character(year_fct)) | |
plot(surveys["sex"]) | |
plot(surveys$sex) | |
sex <- surveys$sex | |
head(sex) | |
levels(sex) | |
levels(sex)[1] <- "undetermined" | |
levels(sex) | |
plot(sex) | |
levels(sex)[1] <- "unknown" | |
plot(sex) | |
levels(sex) | |
levels(sex)[2:3] <- c("female", "male") | |
levels(sex) | |
plot(sex) | |
# don't do this | |
# levels(sex) <- c("unknown", "male", "female") | |
surveys <- read.csv("data_raw/portal_data_joined.csv", stringsAsFactors = FALSE) | |
summary(surveys) | |
plot(surveys$sex) | |
surveys$sex <- factor(surveys$sex) | |
plot(surveys$sex) | |
surveys <- read.csv("data_raw/portal_data_joined.csv") | |
surveys$genus <- as.character(surveys$genus) | |
summary(surveys) | |
library(lubridate) | |
my_date <- ymd("2015-01-01") | |
my_date <- ymd(paste("2015", "1", "1", sep = "-")) | |
paste("2015", "1", "1", sep = "-") | |
paste("2015", "1", "1", sep = "/") | |
paste("2015", "1", "1", sep = " ") | |
paste("2015", "1", "1", sep = "") | |
my_date <- ymd(paste("2015", "1", "1", sep = "-")) | |
paste(surveys$year, surveys$month, surveys$day, sep = "-") | |
ymd(paste(surveys$year, surveys$month, surveys$day, sep = "-")) | |
summary(paste(surveys$year, surveys$month, surveys$day, sep = "-")) | |
surveys$date | |
surveys$date <- ymd(paste(surveys$year, surveys$month, surveys$day, sep="-")) | |
str(surveys) | |
summary(surveys$date) | |
is.na("555") | |
is.na(surveys$date) | |
surveys[is.na(surveys$date), c("year", "month", "day")] |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
I got the following error when I pasted the download.file
Error in download.file(url = "https://ndownloader.figshare.com/files/2292169", :
cannot open destfile 'data_raw/portal_data_joined.csv', reason 'No such file or directory'