search for: peakarea

...ral such matrices all 64-by-64 but with different integers in the matrix such that the mountains look very different. Problem: If I overlay one 64-by-64 matrix over another, there will be many differences in the mountains (such as, height[this is easy], shift towards one direction, surface area[PeakArea from library sp], circumference), I want to quantify those differences. I have some of them figured out but want your inputs to this. I want to be able to compare several mountains with one another and rate them for similarity/differences with one another. Any help would be great. Thanks, Ab

http://r.789695.n4.nabble.com/file/n3312061/x_and_y_values.txt x_and_y_values.txt I have the absorbance values form HPLC Chromatogram. I need to find the peaks in datapoints and area under each peak. I am not sure how how to find the peaks, I tried couple of libraries and peak function but they return me a list of values which when computed from area turns out to be huge nnumbers. In the

Hello! I am having an issue with the OrgMassSpecR package. I run my HPLC using a DAD detector. My raw data is exported form chemstation as a csv file. I then upload the csv into Rstudio no problem. Using the DrawChromatogram function, I get a nice chromatogram, and my retention time, peak area, and apex intensity values are given as well. The problem comes with the peak area value given. The