peak_pick: Pick peaks in datasets interactively

In emiltb/peakr: Interactive tools for analysis of simple datasets

Description

'peak_pick()' is an interactive tool (a shinyGadget) for finding peaks in datasets (e.g. a spectrum). After loading the dataset and specifying the columns, you can easily select peaks by clicking on the dataset. The gadget will automatically try to determine the nearest peak to the click and select it. Peaks can be deselected by clicking again.

When you are finished press "Done". The gadget will place a piece of code in your clipboard that you should paste into your script for reproducibility.

Usage

peak_pick(data, x, y, find = "max")

Arguments

data	A tibble containing the data to pick peaks in
x	Column containing the x-values
y	Column containing the y-values
find	Can be either "max" or "min". Defines what is selected when highlighting peaks. Defaults to "max".

Value

The original dataset with an additional column "peak", which indicates TRUE/FALSE if the given row is a peak.

Examples

library(tibble)
library(dplyr)
set.seed(123)
df <- tibble(x = seq(0.001, 10, 0.01), y = sin(10*x)^4/(x)) %>%
  mutate(y = y + rnorm(n(), mean = 0.01, sd = 0.1))

## Not run: 
peakr::peak_pick(df, x, y)

## End(Not run)

df <- df %>% peakr::add_pick(c(14,48,80,112,143))

# After adding peaks, the plot from the gadget can be reproduced using plot_pick()
df %>% peakr::plot_pick(x, y)

emiltb/peakr documentation built on May 28, 2019, 8:36 p.m.