aboutsummaryrefslogtreecommitdiff
path: root/README.html
diff options
context:
space:
mode:
Diffstat (limited to 'README.html')
-rw-r--r--README.html19
1 files changed, 11 insertions, 8 deletions
diff --git a/README.html b/README.html
index 702e669..238c3b4 100644
--- a/README.html
+++ b/README.html
@@ -361,23 +361,26 @@ pre code {
<div id="drfit" class="section level1">
<h1>drfit</h1>
-<p><a href="https://cran.r-project.org/package=drfit"><img src="data:image/svg+xml; charset=utf-8;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI4NSIgaGVpZ2h0PSIyMCIgYXJpYS1sYWJlbD0iQ1JBTiAwLjcuMiI+CiAgPGxpbmVhckdyYWRpZW50IGlkPSJiIiB4Mj0iMCIgeTI9IjEwMCUiPgogICAgPHN0b3Agb2Zmc2V0PSIwIiBzdG9wLWNvbG9yPSIjYmJiIiBzdG9wLW9wYWNpdHk9Ii4xIi8+CiAgICA8c3RvcCBvZmZzZXQ9IjEiIHN0b3Atb3BhY2l0eT0iLjEiLz4KICA8L2xpbmVhckdyYWRpZW50PgogIDxtYXNrIGlkPSJhIj4KICAgIDxyZWN0IHdpZHRoPSI4NSIgaGVpZ2h0PSIyMCIgcng9IjMiIGZpbGw9IiNmZmYiLz4KICA8L21hc2s+CiAgPGcgbWFzaz0idXJsKCNhKSI+CiAgICA8cGF0aCBmaWxsPSIjNTU1IiBkPSJNMCAwaDQzdjIwSDB6Ii8+CiAgICA8cGF0aCBmaWxsPSIjNGMxIiBkPSJNNDMgMGg2M3YyMEg0M3oiLz4KICAgIDxwYXRoIGZpbGw9InVybCgjYikiIGQ9Ik0wIDBoODV2MjBIMHoiLz4KICA8L2c+CiAgPGcgZmlsbD0iI2ZmZiIgdGV4dC1hbmNob3I9Im1pZGRsZSIKICAgICBmb250LWZhbWlseT0iRGVqYVZ1IFNhbnMsVmVyZGFuYSxHZW5ldmEsc2Fucy1zZXJpZiIgZm9udC1zaXplPSIxMSI+CiAgICA8dGV4dCB4PSIyMS41IiB5PSIxNSIgZmlsbD0iIzAxMDEwMSIgZmlsbC1vcGFjaXR5PSIuMyI+CiAgICAgIENSQU4KICAgIDwvdGV4dD4KICAgIDx0ZXh0IHg9IjIxLjUiIHk9IjE0Ij4KICAgICAgQ1JBTgogICAgPC90ZXh0PgogICAgPHRleHQgeD0iNjMiIHk9IjE1IiBmaWxsPSIjMDEwMTAxIiBmaWxsLW9wYWNpdHk9Ii4zIj4KICAgICAgMC43LjIKICAgIDwvdGV4dD4KICAgIDx0ZXh0IHg9IjYzIiB5PSIxNCI+CiAgICAgIDAuNy4yCiAgICA8L3RleHQ+CiAgPC9nPgo8L3N2Zz4=" /></a></p>
-<p>A somewhat outdated package of basic and easy-to-use functions for
-fitting dose-response curves to continuous dose-response data,
-calculating some toxicological parameters and plotting the results.
-Please consider using the more powerful and actively developed ‘drc’
-package.</p>
+<p>drfit was the first package on CRAN dedicated to dose-reponse curve
+fitting. Its first release to CRAN was made in July 2004. In December
+2005, the wonderful drc package by Christian Ritz and Jens Streibig was
+published on CRAN. However, by that time our working group at the
+University of Bremen was already hooked on drfit.</p>
+<p>We kept our raw dose-response data in a MySQL database, which was
+accessed using the ‘drdata’ function. Of course this only worked with a
+suitable configuration of the ODBC data source.</p>
<p>Functions that are fitted are the cumulative density function of the
log-normal distribution (‘probit’ fit), of the logistic distribution
(‘logit’ fit), of the Weibull distribution (‘weibull’ fit) and a
linear-logistic model (‘linlogit’ fit), derived from the latter, which
is used to describe data showing stimulation at low doses (hormesis). In
-addition, functions checking, plotting and retrieving dose-response data
-retrieved from a database accessed via ‘odbc’ are included. As an
+addition, functions checking and plotting are included. As an
alternative to the original fitting methods, the algorithms from the
‘drc’ package can be used.</p>
<p>More details can be found in the <a href="https://pkgdown.jrwb.de/drfit/reference/index.html">function
reference</a>.</p>
+<p>The drfit package was archived on CRAN at my request on August 26,
+2023. The last version that was published is 0.7.2.</p>
</div>

Contact - Imprint