43 lines
1.1 KiB
Markdown
43 lines
1.1 KiB
Markdown
installation
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* to install R on ubuntu can to [r download page](https://cran.r-project.org/)
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* there are instruction on what to add to sources.list.
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* After doing apt-get update, will probably need to add the public key which is addressed [here](https://askubuntu.com/questions/13065/how-do-i-fix-the-gpg-error-no-pubkey#15272)
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* then do `sudo apt-get install r-base`
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using grid.arrange
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https://cran.r-project.org/web/packages/gridExtra/vignettes/arrangeGrob.html
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set and mirror axis limits:
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```
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scale_y_continuous(
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breaks=seq(glob$PriceMin, glob$PriceMax, round(glob$StdDev * .5,2)),
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limits = c(glob$PriceMin, glob$PriceMax)
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) +
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```
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how to loop through rows of a column
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```
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for (i in dim1) {
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for (j in i) {
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print(j);
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}
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}
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```
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build a list of plots and use grid.arrange
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```
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do.call(grid.arrange,plot_list)
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```
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re-sort a dataframe and print each row of a column
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```
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dim1 <- dim1[order(dim1$list),];
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for (i in dim1) {
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for (j in i) {
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print(j);
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}
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}
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```
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