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DUOL #992

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85 changes: 85 additions & 0 deletions Duol
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Original file line number Diff line number Diff line change
@@ -0,0 +1,85 @@
powerConsum <- read.csv("household_power_consumption.txt", sep = ";", stringsAsFactors = FALSE)
>
>
> powerConsum <- read.csv("household_power_consumption.txt", sep = ";", stringsAsFactors = FALSE)
>
> powerConsum$Date <- as.Date(powerConsum$Date, format = "%d/%m/%Y")
>
> powerConsum$DateTime <- strptime(paste(powerConsum$Date,powerConsum$Time),
+ format = "%Y-%m-%d %H:%M:%S")
> powerConsum <- powerConsum[powerConsum$Date >= "2007-2-1" & powerConsum$Date <= "2007-2-2",]
>
> powerConsum[,3] <- as.numeric(powerConsum[,3])
> powerConsum[,4] <- as.numeric(powerConsum[,4])
> powerConsum[,5] <- as.numeric(powerConsum[,5])
> powerConsum[,6] <- as.numeric(powerConsum[,6])
> powerConsum[,7] <- as.numeric(powerConsum[,7])
> powerConsum[,8] <- as.numeric(powerConsum[,8])
> with(powerConsum, hist(Global_active_power, xlab = "Global Active Power (kilowatts)",
+ col = "red", main = "Global Active Power"))
> dev.copy(device = png, width = 480, height = 480, file = "Plot1.png")
png
4
>
> with(powerConsum, plot(DateTime, Global_active_power, type = "l", xlab = "",
+ ylab = "Global Active Power (kilowatts)", xaxt = "n"))
> axis(side = 1, at = c(as.numeric(powerConsum$DateTime[1]),
+ as.numeric(powerConsum$DateTime[1441]),
+ as.numeric(powerConsum$DateTime[2880])),labels = c("Thu","Fri","Sat"))
> dev.copy(device = png, width = 480, height = 480, file = "Plot2.png")
png
5
> with(powerConsum, plot(DateTime, Sub_metering_1, type = "n", xaxt = "n",
+ xlab = "", ylab = "Energy sub metering"))
> axis(side = 1, at = c(as.numeric(powerConsum$DateTime[1]),
+ as.numeric(powerConsum$DateTime[1441]),
+ as.numeric(powerConsum$DateTime[2880])),labels = c("Thu","Fri","Sat"))
> with(powerConsum, lines(DateTime, Sub_metering_1))
> with(powerConsum, lines(DateTime, Sub_metering_2, col = "red"))
>
> with(powerConsum, lines(DateTime, Sub_metering_3, col = "blue"))
> legend("topright",lty = 1, col=c("black","red","blue"),
+ legend = c("Sub_metering_1","Sub_metering_2","Sub_metering_3"))
> dev.copy(device = png, width = 480, height = 480, file = "Plot3.png")
png
6
>
> par(mfrow = c(2,2))
>
> with(powerConsum, plot(DateTime, Global_active_power, type = "l", xlab = "",
+ ylab = "Global Active Power", xaxt = "n"))
> axis(side = 1, at = c(as.numeric(powerConsum$DateTime[1]),
+ as.numeric(powerConsum$DateTime[1441]),
+ as.numeric(powerConsum$DateTime[2880])),labels = c("Thu","Fri","Sat"))
>
> with(powerConsum, plot(DateTime, Voltage, type = "l", xlab = "datetime", ylab = "Voltage",
+ xaxt = "n"))
> axis(side = 1, at = c(as.numeric(powerConsum$DateTime[1]),
+ as.numeric(powerConsum$DateTime[1441]),
+ as.numeric(powerConsum$DateTime[2880])),labels = c("Thu","Fri","Sat"))
>
> with(powerConsum, plot(DateTime, Sub_metering_1, type = "n", xaxt = "n",
+ xlab = "", ylab = "Energy sub metering"))
> axis(side = 1, at = c(as.numeric(powerConsum$DateTime[1]),
+ as.numeric(powerConsum$DateTime[1441]),
+ as.numeric(powerConsum$DateTime[2880])),labels = c("Thu","Fri","Sat"))
> with(powerConsum, lines(DateTime, Sub_metering_1))
> with(powerConsum, lines(DateTime, Sub_metering_2, col = "red"))
> with(powerConsum, lines(DateTime, Sub_metering_3, col = "blue"))
> legend("topright",lty = 1, col=c("black","red","blue"),
+ legend = c("Sub_metering_1","Sub_metering_2","Sub_metering_3"))
> with(powerConsum, plot(DateTime, Global_reactive_power, type= "l", xlab = "datetime",
+ ylab = "Global_reactive_power", xaxt = "n"))
> axis(side = 1, at = c(as.numeric(powerConsum$DateTime[1]),
+ as.numeric(powerConsum$DateTime[1441]),
+ as.numeric(powerConsum$DateTime[1441]),
+ as.numeric(powerConsum$DateTime[2880])),labels = c("Thu","Fri","Sat"))
Error in axis(side = 1, at = c(as.numeric(powerConsum$DateTime[1]), as.numeric(powerConsum$DateTime[1441]), :
'at' and 'labels' lengths differ, 4 != 3
> axis(side = 1, at = c(as.numeric(powerConsum$DateTime[1]),
+ as.numeric(powerConsum$DateTime[1441]),
+ as.numeric(powerConsum$DateTime[2880])),labels = c("Thu","Fri","Sat"))
> dev.copy(device = png, width = 480, height = 480, file = "Plot4.png")
png
7
>