23 lines
530 B
TeX
23 lines
530 B
TeX
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\documentclass[margin=0.5cm]{standalone}
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\usepackage{tikz}
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\usepackage{pgfplots}
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\pgfplotsset{compat=1.18}
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\begin{document}
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\begin{tikzpicture}
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\begin{axis}[
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title={Logit function},
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xlabel={$x$},
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ylabel={$y$},
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domain=-5:5,
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samples=200,
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legend style={at={(0.95,0.05)},anchor=south east}
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]
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\newcommand{\Lvar}{1}
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\newcommand{\kvar}{1}
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\newcommand{\xvar}{0}
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\addplot [blue] {\Lvar / (1 + exp(-\kvar*(x-\xvar)))};
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\addlegendentry{$L = \Lvar, k=\kvar, x_0=\xvar$};
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\end{axis}
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\end{tikzpicture}
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\end{document}
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