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-# pfm
-```{r, echo = FALSE}
-options(device = function(file, width = 7, height = 7, ...) {
- cairo_pdf(tempfile(), width = width, height = height, ...)
-})
-```
-The R package **pfm** provides some utilities for dealing with FOCUS pesticide fate modelling tools,
-(currently only TOXSWA cwa and out files), made available under the GNU public license.
-This means:
-
- This program is free software: you can redistribute it and/or modify it under
- the terms of the GNU General Public License as published by the Free Software
- Foundation, either version 3 of the License, or (at your option) any later
- version.
-
- This program is distributed in the hope that it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
- details.
-
- You should have received a copy of the GNU General Public License along with
- this program. If not, see <http://www.gnu.org/licenses/>
-
-## Installation
-
-You can install the package from [github](http://github.com/jranke/pfm), e.g.
-using the `devtools` package. Using `quick = TRUE` skips docs,
-multiple-architecture builds, demos, and vignettes, to make installation as
-fast and painless as possible.
-
-```{r, eval = FALSE}
-library(devtools)
-install_github("jranke/pfm", subdir = "pkg", quick = TRUE)
-```
-
-## Use
-
-### Analyse TOXSWA output
-
-Read in and analyse a cwa file:
-
-
-```{r}
-library(pfm, quietly = TRUE)
-example_cwa <- read.TOXSWA_cwa("00003s_pa.cwa")
-plot(example_cwa)
-```
-
-Get events above thresholds of 20 and 100 µg/L,
-and do a moving window analysis for windows of 7 days
-and 21 days, print the results:
-
-```{r}
-example_cwa$get_events(c(20, 100))
-example_cwa$moving_windows(c(7, 21))
-print(example_cwa)
-```
-
-This can also be done with out files, the function reads
-out files from current TOXSWA versions as well as cwa files
-from old TOXSWA versions.
-
-
-### Calculate PEC soil
-
-Simple PEC soil calculation for an application rate of 100 g/ha and
-25% interception, assuming complete mixing into 5 cm and a soil bulk
-density of 1.5 kg/L, output in mg/kg:
-
-
-```{r}
-PEC_soil(100, interception = 0.25)
-```
-
-### Rautmann drift data
-
-Some of the drift percentage data published by the JKI are included. To
-see the data for one application:
-
-
-```{r}
-drift_data_JKI[1]
-```
-
-### PEC surface water due to drift
-
-Initial PEC values for an application of 100 g/ha in the vicinity of a 30 cm
-deep water body are obtained using
-
-
-```{r}
-PEC_sw_drift(100, applications = 1)
-```

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