Rscript -e 'df <- read.csv("data.csv"); png("rplot.png"); plot(df$age, df$salary); dev.off()'

Category: Data Science & Analysis

Rscript -e 'df <- read.csv("data.csv"); png("rplot.png"); plot(df$age, df$salary); dev.off()'

Scatter plot age against salary to a PNG file

The png() function opens a PNG graphics device, plot() draws the scatter of age versus salary, and dev.off() closes the device and finalizes the file. Forgetting dev.off() leaves the file empty or truncated. The resulting rplot.png appears in the working directory. Use hist() instead of plot() for a single-column distribution.
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