Figure 1.

Phenotype-aware cluster representatives. The x-axis represents the genome, with the locations of genotyped SNPs $X_i$ indicated by tick marks. The true causal effect of each position of the genome is indicated in red; there is only one causal variant in this region, between SNPs $X_6$ and $X_7.$ Solid black circles indicate the value of ${\beta }_i,$ coefficient of $X_i$ in a linear approximation of the conditional expectation $E\left(y|X_i\right).$ Asterisks mark the estimated ${\widehat{\beta }}_i\mathrm{\prime s}$ in the sample. The SNPs $X_5$ and $X_{14},$ selected as cluster representatives in this schematic diagram, are indicated in blue.