[Tex/LaTex] Multiline regression equation in Latex

equations

Noob here. I'm trying to put together a multiline multivariate regression equation in Latex and am having some issues.

$ {Unit.Sales_t} = \alpha + \beta_{1} Date_{t} + \beta_{2}  Cable.TV_{t} + \beta_{3}  Int.Display_{t} + \beta_{4}  Local.Radio_{t} + \beta_{5}  Magazines_{t} + \beta_{6}  Network.TV_{t} + \beta_{7}  Spot.TV_{t} + \epsilon$

I'm trying to match the regression parameters so that it's not one long set of new lines. It should be something along the following lines.

Unit.Sales = A + B1 Date +
                 B2 Cable.TV +
                 B3 Int.Display +
....

Or some variation of the above type so that each predictor is on a separate line.

Best Answer

If you want the equations to be in display mode (i.e, set on their own line you can achieve your desired results with the align* environment:

enter image description here

Notes:

The mathtools package loads the amsmath and provides some fixes.

Code:

\documentclass{article}
\usepackage{mathtools}

\begin{document}
\begin{align*}
\mathrm{Unit.Sales}_{t} = \alpha 
    &+ \beta_{1}  \mathrm{Date}_{t} \\
    &+ \beta_{2}  \mathrm{Cable.TV}_{t}    \\
    &+ \beta_{3}  \mathrm{Int.Display}_{t} \\
    &+ \beta_{4}  \mathrm{Local.Radio}_{t} \\
    &+ \beta_{5}  \mathrm{Magazines}_{t}   \\
    &+ \beta_{6}  \mathrm{Network.TV}_{t}  \\
    &+ \beta_{7}  \mathrm{Spot.TV}_{t} + \epsilon
\end{align*}
\end{document}

Related Solutions

[Tex/LaTex] Presenting a long linear regression equation

I am not sure exactly what the problem is, but does this help:

\documentclass{article}
\usepackage{amsmath}
\usepackage{mathtools}

\newcommand{\op}{\,*\,}% Use \: instead of \, if you want larger space

\begin{document}
\begin{figure*}[!t]
\begin{align} 
ua = (49.3) + (-13 * m\_a) + (-0.4 * k\_a) \notag\\
    \phantom{=}+ (-1 * l\_b) + (8 * t\_b) + (-9 * s\_a) \label{eq:sf}
\end{align}

\begin{align} 
ua = (49.3) + (-13 \op m\_a) + (-0.4 \op k\_a) \notag\\
    \phantom{=}+ (-1 \op l\_b) + (8 \op t\_b) + (-9 \op s\_a) \label{eq:sf}
\end{align}

\end{figure*}
\end{document}

If you are looking to automatically break the equation that is a bit more complicated, and perhaps the breqn package may be useful to look into.

[Tex/LaTex] How to properly display chemical compounds within \equation? (mhchem won’t do what I need)

Your code isn't working as it stands: the second line is not in math mode or inside \ce so _ must issue an error.

Li_{2}(SO_{4})_{0.5}

In the third and fourth line the groups are not balenced but miss a }. After correcting this:

\begin{equation} X_{\ce{Li2(SO4)0.5}} \end{equation}

\begin{equation} X_{\ce{Li2(SO4)_{0.5}}} \end{equation}

the behaviour of the third is documented mhchem behaviour to display adducts so the forth is not a workaround but the way to go.

\documentclass{article}
\usepackage[version=3]{mhchem}
\begin{document}

\ce{Li2(SO4)_{0.5}}

Adduct: \ce{Na2SO4.10H2O}

\begin{equation}
 X_{\ce{Li2(SO4)_{0.5}}}
\end{equation}

\end{document}

enter image description here

Alternatively one can use (my own) chemformula:

\documentclass{article}
\usepackage{chemformula}
\begin{document}

\ch{Li2(SO4)_{0.5}}

Adduct: \ch{Na2SO4 * 10 H2O}

\begin{equation}
 X_{\ch{Li2(SO4)_{0.5}}}
\end{equation}

\end{document}

enter image description here

Best Answer

Notes:

Code:

Related Solutions

[Tex/LaTex] Presenting a long linear regression equation

[Tex/LaTex] How to properly display chemical compounds within \equation? (mhchem won’t do what I need)

Related Question