big.peaks.col: Peak search by first derivatives
In Fragman: Fragment Analysis in R
View source: R/big.peaks.col.R
big.peaks.col R Documentation
Peak search by first derivatives
Description
This function find all peaks by taking the first derivative based on 'rle' function. Is used in different Fragma functions.
Usage
big.peaks.col(x,tre)
Arguments
x
A vector of heights or intensities
tre
A scalar value deciding when peaks will be ignored
Details
No major details.
Value
Retuns the biggest peaks for a vector of intensities.
- out
a vector of positions where the derivative is zero and therefore a peak was found
References
Covarrubias-Pazaran G, Diaz-Garcia L, Schlautman B, Salazar W, Zalapa J. Fragman: An R package for fragment analysis. 2016. BMC Genetics 17(62):1-8.
Robert J. Henry. 2013. Molecular Markers in Plants. Wiley-Blackwell. ISBN 978-0-470-95951-0.
Ben Hui Liu. 1998. Statistical Genomics. CRC Press LLC. ISBN 0-8493-3166-8.
Examples
data(my.plants)
big.peaks.col(my.plants[[1]][,1],100)#for any color
Fragman documentation built on May 24, 2026, 5:08 p.m.
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View source: R/big.peaks.col.R
| big.peaks.col | R Documentation |
Peak search by first derivatives
Description
This function find all peaks by taking the first derivative based on 'rle' function. Is used in different Fragma functions.
Usage
big.peaks.col(x,tre)
Arguments
x |
A vector of heights or intensities |
tre |
A scalar value deciding when peaks will be ignored |
Details
No major details.
Value
Retuns the biggest peaks for a vector of intensities.
- out
a vector of positions where the derivative is zero and therefore a peak was found
References
Covarrubias-Pazaran G, Diaz-Garcia L, Schlautman B, Salazar W, Zalapa J. Fragman: An R package for fragment analysis. 2016. BMC Genetics 17(62):1-8.
Robert J. Henry. 2013. Molecular Markers in Plants. Wiley-Blackwell. ISBN 978-0-470-95951-0.
Ben Hui Liu. 1998. Statistical Genomics. CRC Press LLC. ISBN 0-8493-3166-8.
Examples
data(my.plants)
big.peaks.col(my.plants[[1]][,1],100)#for any color
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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