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Number of tests done per month and year by indication

Source: R/EndoMineR.R
HowManyOverTime.Rd

Get an overall idea of how many endoscopies have been done for an indication by year and month. This is a more involved version of SurveilCapacity function. It takes string for the Indication for the test

Usage

HowManyOverTime(dataframe, Indication, Endo_ResultPerformed, StringToSearch)

Arguments

dataframe

dataframe

Indication

Indication column

Endo_ResultPerformed

column containing date the Endoscopy was performed

StringToSearch

The string in the Indication to search for

Details

This returns a list which contains a plot (number of tests for that indication over time and a table with the same information broken down by month and year).

See also

Other Basic Analysis - Surveillance Functions: SurveilFirstTest(), SurveilLastTest(), SurveilTimeByRow(), TimeToStatus()

Examples

# This takes the dataframe MyEndo (part of the package examples) and looks in
# the column which holds the test indication (in this example it is called
# 'Indication' The date of the procedure column(which can be date format or
# POSIX format) is also necessary.  Finally the string which indicates the text
# indication needs to be inpoutted. In this case we are looking for all endoscopies done
# where the indication is surveillance (so searching on 'Surv' will do fine).
# If you want all the tests then put '.*' instead of Surv
rm(list = ls(all = TRUE))
ff <- HowManyOverTime(Myendo, "Indications", "Dateofprocedure", ".*")