bint was written for the purpose of obtaining subsets of intensity data from genotyping assays. Either the X & Y intensities for creating cluster plots or Log R Ratio and B Allele Frequencies for CNV detection. Extracting the data for individual SNP/CNV markers or individual samples was slow grep/awk'ing the text files exported from the genotyping run (e.g. Illumina final report files). bint converts the text representation of the intensity float data to into a IEEE754 indexed binary file for rapid extraction of subsets of the data. In theory bint could be used for any large tables of float data.
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