can't move diagonally in emulator on mac keyboard

I’m very pleased to announce the release of ggplot2 2.0.0.Some care has been taken to make the outputs functionally equivalent. For each example the ggplot2 implementation is on the left, the ggvis implementation is on the right. This is a simple demonstration of how to convert existing ggplot2 code to use the ggvis package. That’s a bit unfortunate, because it’s the first function I wrote in earnest using ggplot2 and ggplot2 itself has undergone some updates since then, meaning my code is clunky, outdated and, er, broken. It looks like my ggplot2 heatmap function gets most traffic on this blog.

# Building a plot with linear models (male vs female) : p + geom_point(aes(group = sex, colour = sex)) + geom_abline(slope = coef_male, intercept = coef_male, colour = 'blue') + geom_abline(slope = coef_female, intercept = coef_female, colour = 'red') + xlab('Annual Income') + ylab('Annual Gambling Expenditures') + scale_colour_manual(values = c('red','blue'), labels = c('Male', 'Female'), name = 'Legend') + ggtitle('British Teen Gambling Survey Study') + theme(plot.title.seed_value - 19710822 set.seed(seed_value) options(width = 72) opts_chunk$set(fig.width=4, fig.height=4, fig.align='center', fig.show='hold', out.width='0.3.

Can't move diagonally in emulator on mac keyboard