System, method, and computer product for exon array analysis
View Patent ↗In one embodiment, a method for analyzing data generated by probe arrays is described that comprises receiving user selections of two or more data files and an identification of one or more subsets of intensity values acquired from a biological probe array. The method includes iteratively opening each data file, identifying the selected subset of intensity values associated with each open data file, determining parameters for processing, storing the parameters and the identified intensity values, and closing the open data file prior to the subsequent iteration. The method then includes processing the stored intensity values using the parameters to identify one or more biological events.
1. A method for normalizing probe array intensity data, the method comprising:
providing a computer with a computer program, wherein the program is designed to receive one or more data files, wherein each data file comprises a plurality of intensity values acquired from one or more probe arrays, and wherein the program is additionally designed to normalize intensity values stored in the data files;
retrieving intensity values from one or more data files;
normalizing retrieved intensity values, wherein the normalization is based upon a normalization subset of intensity values and interpolated intensity values, wherein the interpolated intensity values are based upon the normalization subset, wherein the normalization subset comprises one or more of the retrieved intensity values, and wherein the intensity values of the normalization subset are selected without analyzing every retrieved intensity value; and
storing the normalized intensity values.
2. The method of claim 1 , additionally comprising:
determining signal estimations for the normalized intensity values; and
storing the signal estimations.
3. The method of claim 2 , wherein the signal estimations are based, at least in part, upon affinity values associated with each probe of the probe array, and wherein each affinity value represents a probe's binding affinity for its target.
4. The method of claim 1 , wherein the normalization subset comprises one intensity value from each probe set in a data file.
5. The method of claim 1 , wherein all intensity values from each data file are retrieved for normalization.
6. The method of claim 1 , wherein one or more selected subsets of intensity values are retrieved from a data file for normalization.
7. A system for normalizing probe array intensity data, the system comprising:
a scanner, wherein the scanner is designed to acquire a plurality of pixel intensity values from a probe arrays; and
a computer, the computer comprising:
system memory; and
a computer program, wherein the scanner and the computer program are designed to stored the acquired pixel intensity values within one or more data files, and wherein the computer program comprises executable code for implementing a method, the method comprising:
retrieving intensity values from one or more data files;
normalizing retrieved intensity values, wherein the normalization is based upon a normalization subset of intensity values and interpolated intensity values, wherein the interpolated intensity values are based upon the normalization subset, wherein the normalization subset comprises one or more retrieved intensity values, and wherein the intensity values of the normalization subset are selected without analyzing every retrieved intensity value; and
storing the normalized intensity values within one or more data files in the system memory.
8. The system of claim 7 , wherein the computer program additionally comprises executable code for:
determining signal estimations for the normalized intensity values; and
storing the signal estimations within one or more data files in the system memory.
9. The system of claim 8 , wherein the signal estimations are based, at least in part, upon affinity values associated with each probe of the probe array, and wherein each affinity value represents a probe's binding affinity for its target.
10. The system of claim 7 , wherein the normalization subset comprises one intensity value from each probe set in a data file.
11. The system of claim 7 , wherein the executable code is designed such that all intensity values from each data file are retrieved for normalization.
12. The system of claim 7 , wherein the executable code is designed such that one or more selected subsets of intensity values are retrieved from a data file for normalization.