getci: Chemotaxis Index
In hzders/Final-project: Final Project

Description Usage Arguments Details Value Author(s) Examples

The function will make sure the data inputs are all positive and perform the formula for chemotaxis index (CI) = (regionA# - regionB#)/total#. the function will return a table with the CI from each row added in the last column

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getci(a)
moreci(a)
barci(a, stderror)

`a`	a is the input dataframe with coloumns as "Chemicals", "Region .A", "Region.B" and "origin"(also see the example)
`stderror`	a logical value if it is TRUE, use standard error in the barplot. Otherwise, use standard deviation.

This table needs to have four coloumns that are named "Chemicals", "RegionA", "RegionB", and "Origin". Each row are named by the chemical testes.

getci returns the dataframe with one more coloum for CI values. moreci returns mean, SD and SE based on each category of chemicals. barci return a barplot of mean

Ziduan Han

example <-data.frame("Chemicals" = c("NaCl","NaCl","NaCl", "O2","O2"), "Region.A" = c(20,30,15,13,50), 
"Region.B" = c(15,13,5,3,4), "origin" = c(71,32,32,12,12) )
getci(example)
moreci(example)
barci(example, stderror = TRUE)