findPeaks.matchedFilter-methods(xcms)
findPeaks.matchedFilter-methods()所属R语言包:xcms
Feature detection in the chromatographic time domain
色谱时域特征检测
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Find peaks in extracted the chromatographic time domain of the profile matrix.
中提取的轮廓矩阵色谱时域峰。
参数----------Arguments----------
参数:object
xcmsRaw object
xcmsRaw对象
参数:fwhm
full width at half maximum of matched filtration gaussian model peak. Only used to calculate the actual sigma, see below.
在半最大匹配过滤高斯模型峰全宽。仅用于计算实际西格玛,见下文。
参数:sigma
standard deviation (width) of matched filtration model peak
匹配过滤模型高峰的标准偏差(宽度)
参数:max
maximum number of peaks per extracted ion chromatogram
%提取离子色谱峰的最大数量
参数:snthresh
signal to noise ratio cutoff
信号噪声比截止
参数:step
step size to use for profile generation
步长,使用个人资料的代
参数:steps
number of steps to merge prior to filtration
步骤合并之前过滤
参数:mzdiff
minimum difference in m/z for peaks with overlapping retention times
差异最小的m / z为峰保留时间重叠
参数:index
return indicies instead of values for m/z and retention times
返回序号为,而不是值,m / z和保留时间
参数:sleep
number of seconds to pause between plotting peak finding cycles
暂停之间绘制峰寻找周期秒数
值----------Value----------
A matrix with columns:
一个矩阵的列:
参数:mz
weighted (by intensity) mean of peak m/z across scans
加权(强度)意味着整个扫描峰的m / z
参数:mzmin
m/z of minimum step
最小步长为m / z
参数:mzmax
m/z of maximum step
最大步的m / z
参数:rt
retention time of peak midpoint
高峰期的中点的保留时间
参数:rtmin
leading edge of peak retention time
峰的保留时间的领先优势
参数:rtmax
trailing edge of peak retention time
峰的保留时间后缘
参数:into
integrated area of original (raw) peak
综合区原(原)高峰
参数:intf
integrated area of filtered peak
综合过滤峰面积
参数:maxo
maximum intensity of original (raw) peak
原(原)峰的最大强度
参数:maxf
maximum intensity of filtered peak
最大过滤高峰强度
参数:i
rank of peak identified in merged EIC (<= max)
在合并后的EIC确定峰值排名(<=max)
参数:sn
signal to noise ratio of the peak
信号噪声比高峰
方法----------Methods----------
findPeaks.matchedFilter(object, fwhm = 30, sigma = fwhm/2.3548, max = 5, snthresh = 10, step = 0.1, steps = 2, mzdiff = 0.8 - step*steps, index = FALSE, sleep = 0)
findPeaks.matchedFilter(object, fwhm = 30, sigma = fwhm/2.3548, max = 5, snthresh = 10, step = 0.1, steps = 2, mzdiff = 0.8 - step*steps, index = FALSE, sleep = 0)
作者(S)----------Author(s)----------
Colin A. Smith, <a href="mailto:csmith@scripps.edu">csmith@scripps.edu</a>
参见----------See Also----------
findPeaks-methods xcmsRaw-class
findPeaks-methodsxcmsRaw-class
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
注1:为了方便大家学习,本文档为生物统计家园网机器人LoveR翻译而成,仅供个人R语言学习参考使用,生物统计家园保留版权。
注2:由于是机器人自动翻译,难免有不准确之处,使用时仔细对照中、英文内容进行反复理解,可以帮助R语言的学习。
注3:如遇到不准确之处,请在本贴的后面进行回帖,我们会逐渐进行修订。
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