![]() ![]() A block will list the probes as its members.īlock. There are as many "Unit_Block" sections as defined by NumberBlocks. This value is available in version 2 andĪfter the "Unit" section follows the "Unit_Block" sections. Units only in defining the type of polymorphism (0 - substitution, 1. Tag/GenFlex, 8 - Copy Number, 9 - Genotyping Control, 10 - ExpressionĬontrol, 11 - Polymorphic Marker, 12 - Multichannel Marker). Unit (0 - Unknown, 1 - CustomSeq, 2 - Genotyping, 3 - Expression, 7. Probe pairs contain 2 cells and probe quartets An atom is a probe quartet for CustomSeq units and a The first is the number of atoms and the second (if found) This TAG name contain two values after theĮqual sign. Probes are interrogating a sense target or anti-sense target (1. Marker and Multichannel Marker units or "NONE" for all other unit types. The probe set name for Genotyping, Copy Number, Polymorphic Immediately following the "Unit" section there will be the "Block" sections for that unit before the next unit is defined.Įach "Unit" section contains the following TAGS: TAG Each unit is divided into subsections termed "Blocks" which are referred to as "groups" in the Files SDK documentation.Įach section name is a combination of "Unit" and an index. The next set of sections where the name begins with "Unit" define the probes that are a member of the unit (probe set). In the tag ranges from 1 to the number of cells in the probe setĪnd will be listed sequentially. Information about a cell that belongs to the probe set. There are as many 0's as number ofīases in the probe sequence (PLEN). For types: 9 - Gene Expression Negative, 10 For types: 7 - Central Negative, 8 -Ĭentral Positive, 9 - Gene Expression Negative,Ī background (blank) cell. The final data items are dependent on the Up the corresponding cell data in the CEL file. QC units are defined for version 2 and above.Įach section contains the following TAGS: TAGĬontained in the subsequent lines, separated by tabs. There are NumQCUnits (from the Chip section) QC sections.Įach section name is a combination of "QC" and an index ranging from 1 to NumQCUnits-1 and will be listed sequentially. The next set of sections where the name begins with "QC" define the QC units or probe sets in the array. This is the reference sequence displayed by QC units are defined in version 2 and above. The units in the array (not including QC units). This value is the maximum of the unit numbers of all Other array types, there exists one unit per probe set.Ī unique number. Unit2 contains the probes interrogating an anti-sense target. For CustomSeq arrays, there areĢ units: Unit1 contains the probes interrogating a sense target and The "Chip" section contains the following TAGS: TAGĪrray. The "CDF" section contains the version number of the file. The data in each section is of the format TAG=VALUE. The section names are: "CDF", "Chip", "QCI" (where I ranges from 1 to the number of QC probe sets), "Unit J" (where J is an internal index to uniquely distinguish probe sets), and "Unit J_Block K" (where J and K are internal indices used to distinguish subsets of a probe set). The start of each section is defined by a line containing a section name enclosed in square braces. CDF FILES WINDOWSThe format of this CDF file is an ASCII text file similar to the Windows INI format. This was also known as the binary or XDA version. XDA format is used by the GCOS 1.2 and above software.This was also known as the ASCII version. ASCII text format is used by the MAS and GCOS 1.0 software.The information below will describe the following versions: Multiple copies of a probe set may exist on a single array as long as each copy has a unique name. All probe set names within an array are unique. An array may contain Expression, Genotyping, CustomSeq, Copy Number and/or Tag probe sets. The CDF file describes the layout for an Affymetrix GeneChip array. Scan over 208 degrees sea with 2.4 m waves.Affymetrix® CDF Data File Format CDF FILE Scan over 210 degrees sea with 2.5 m waves. Scan over 209 degrees sea with 2.5 m waves. Thumbnails left of plots show circle of 8 km radius, indicating land (dark gray) sea (light gray) radar beam (blue, 8 times wider than real beam) radar range (between two blue circles) radar scan motion, if any (blue shadow, width decreases with time) approximate wind direction (red arrow). ![]() time and range, for VV polarizations (when measured, otherwise HH). ![]()
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