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Figure 3 | BMC Genetics

Figure 3

From: Genome-wide linkage analyses identify Hfhl1 and Hfhl3 with frequency-specific effects on the hearing spectrum of NIH Swiss mice

Figure 3

Loading of principal components 1 and 2. Loading of the first two principal components for DPOAE spectra are plotted as a function of the f2 stimulus frequency. The first component (PC1) has all positive loadings, indicating that it is a measure of the overall magnitude of emissions. The second component (PC2) has positive loading for low frequencies and negative loading for high frequency, indicating that it is a measure of the contrast between the magnitude of high frequency emissions and low frequency emissions.

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