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[[File:LASER-Workflow.png|thumb|center|alt=LASER workflow|400px|LASER Workflow]]
[[File:LASER-Workflow.png|thumb|center|alt=LASER workflow|400px|LASER Workflow]]
*Seq file: a text file processed from BAM (alignment) files. (See [[#Process sequencing file (BAM)]] for how to obtain seq file)
*Seq file: a text file processed from BAM (alignment) files. (See [[#Process sequencing file (BAM)|Processing sequencing file]] for how to obtain seq file)
*Geno file: genotypes of reference panels. (See [[#Geno file]] to understand geno file format)
*Geno file: genotypes of reference panels. (See [[#Geno file|Geno file]] to understand geno file format)
In coord files of reference, LASER calculated the Principal Component Analysis (PCA) results of the reference samples; In coord files of sequencing samples, LASER infers their ancestries by placing their ancestry coordinates on the reference coordinates.
In coord files of reference, LASER calculated the Principal Component Analysis (PCA) results of the reference samples; In coord files of sequencing samples, LASER infers their ancestries by placing their ancestry coordinates on the reference coordinates.
