Introduction:
The tool takes a peak table file as input,
processes the outliers using the capping method. Default boundary is [0,
Q3+1.5*IQR]. If the value > (Q3+1.5*IQR), it is identified as an outlier and
replaced by the maximum value within the normal range.
Input files:
1.
Peak table file in Tab-delimited
text format with the first column as the compound identifier and others as
samples.
For example:
|
AlignID |
STDmix_GC_01 |
STDmix_GC_02 |
STDmix_GC_03 |
|
1 |
1486892478 |
561322777 |
3448620272 |
|
Nitrogen
dioxide |
5492977592 |
684434115 |
3265669981 |
|
Ethanol,
2-fluoro- |
2265686433 |
4182838129 |
4365291513 |
|
3-Pentanone,
2,2,4,4-tetramethyl- |
13390154 |
12612932 |
21155307 |
|
Hydrazine |
14588107 |
8510918 |
7224351 |
Parameter:
1.
Q3: The third quartile (Q3),
also known as the "larger quartile", equals to the value ranked at
75% of all values in ascending order.
2. IQR: InterQuartile Range, equals to |Q3 minus Q1|.
Output files:
1.
'outliers_processed_pkTable.txt', outliers processed peak table file in Tab-delimited txt format.