Six visual encodings for different types of experimental data. (a) One vertical bar is shown for numerical data point. (b) A group of numerical data points is abstracted into one horizontal bar with error bars. (c) Redundant encoding using color and length for copy number data. Red bars pointing upwards indicate an increased number of copies, whereas reduced copy numbers are shown as blue bars pointing downwards. (d) Several copy number values are abstracted into a histogram. (e) Matrix visualization for mutation status data. Red cells indicate samples where the gene is mutated. (f) Histogram abstracting the binary mutation status of the gene across samples.