File:Twoway.png

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Summary

png("~/Downloads/twoway.png", width=8, height=6, units="in",res=300)
par(mar = c(8, 4, 4, 2)) 
boxplot(y ~ treatment * timepoint, data = df,
        col = c("skyblue", "lightgreen", "lightpink"),
        main = "Plant Growth by Treatment and Timepoint",
        xlab = "", ylab = "Plant Height", xaxt = "n")

# Add rotated x-axis labels
labels <- levels(interaction(df$treatment, df$timepoint))
axis(1, at = 1:length(labels), labels = FALSE)  # Add ticks without labels
text(x = 1:length(labels), y = par("usr")[3] - 0.5, 
     labels = labels, srt = 45, adj = 1, xpd = TRUE)
dev.off()

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	20:47, 17 May 2025		2,400 × 1,800 (76 KB)	Brb (talk \| contribs)	<syntaxhighlight lang='r'> png("~/Downloads/twoway.png", width=8, height=6, units="in",res=300) par(mar = c(8, 4, 4, 2)) boxplot(y ~ treatment * timepoint, data = df, col = c("skyblue", "lightgreen", "lightpink"), main = "Plant Growth by Treatment and Timepoint", xlab = "", ylab = "Plant Height", xaxt = "n") # Add rotated x-axis labels labels <- levels(interaction(df$treatment, df$timepoint)) axis(1, at = 1:length(labels), labels = FALSE) # Add ticks without labels...

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T-test