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| 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")] |
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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'