Sstrhsrtj

Where do I please make mistake when I want to delete two columns?

I have this code:

documentclass[12pt,a4paper]{report}

usepackage[T1]{fontenc}

usepackage[utf8]{inputenc}

usepackage[czech]{babel}



usepackage[margin=2.5cm]{geometry}  % choose suitable text block parameters

usepackage{lmodern,textcomp}



usepackage{amsmath,amssymb,bm} 

usepackage[nottoc]{tocbibind}

usepackage{booktabs,siunitx} 



newcommand{Mo}{mathrm{M}_{odot}}

newcommand{Ro}{mathrm{R}_{odot}}



begin{document}



begin{table}

footnotesize



begin{tabular*}{textwidth}{

  @{extracolsep{fill}}

  l

  S[table-format=1.6(2)]

  S[table-format=5.3(2)]

  S[table-format=2.3]

  *{5}{S[table-format=3.2]}

  @{}

}

toprule

Zdroj & 

{$P$} & 

{$T_0$}  & 

{$e$} &

{$omega$} & 

{$i$} & 

{$a$} & 

{$a$} &

{$M_1$} \[0.33ex]

  & {(dny)}

  & {(RJD)}

  & {} 

  & {(${}^circ$)} 

  & {(${}^circ$)} 

  & {($Ro$)}

  & {($Mo$)}

  & {($Mo$)}   

  \

midrule



1 & 5,732436(15) & 54002,780(46) & 12.345 & 123.45 & 123.45 & 123.45 & 123.45 &\



bottomrule

addlinespace

multicolumn{9}{@{}l}{textit{Pozn:} $^a$ Směrodatná chyba odhadu metodou Monte Carlo.}

end{tabular*}



caption{Maximálně věrohodné odhady v~modelu M.}label{tab03:Nejaka}

end{table}



end{document}

I edited in bad way:

documentclass[12pt,a4paper]{report}

usepackage[english,czech]{babel}

usepackage[margin=2.5cm]{geometry}

usepackage[utf8]{inputenc}

usepackage[T1]{fontenc}

usepackage{lmodern,textcomp}

usepackage{amsmath,amssymb,bm} 

usepackage[nottoc]{tocbibind}

usepackage{icomma,dcolumn,booktabs} 



newcommand{mc}[1]{multicolumn{1}{c}{#1}}

usepackage{tabularx,ragged2e} 

newcolumntype{d}[1]{D{.}{,}{#1}}

newcolumntype{L}{>{RaggedRightarraybackslash}X}

begin{document}



begin{table}small

setlengthtabcolsep{3pt} 

begin{tabularx}{textwidth}{@{} L cc c c *{2}{c} @{}}

toprule

Zdroj & $P$ & $T_0$ & mc{$e$} & mc{$omega$} & mc{$i$} & mc{$a$} & mc{$a$} & multicolumn{1}{c@{}}{$M_1$} \[0.33ex]

& (dny) & (RJD) & & mc{($^circ$)}  &  mc{($mathrm{M}_{odot}$)} & multicolumn{1}{c@{}}{($mathrm{M}_{odot}$)} \

midrule

1 & 5,732436(15) & 54002,780(46) & 0,0910(37) & 12.345 & 123.45 & 123.45 \



bottomrule

addlinespace

multicolumn{6}{@{}l}{footnotesizetextit{Pozn:} $^a$ Směrodatná chyba odhadu metodou Monte Carlo.}

end{tabularx}



caption{Maximálně věrohodné odhady v~modelu M.}label{tab03:Nejaka}

end{table}



end{document}

Thank you

Your table has 8 centred columns, not 6. I took the opportunity to simplify your code – what's the point of using multicolumn{1}{c}{...} in a c column?

documentclass[12pt,a4paper]{report}

usepackage[english,czech]{babel}

usepackage[margin=2.5cm]{geometry}

usepackage[utf8]{inputenc}

usepackage[T1]{fontenc}

usepackage{lmodern,textcomp}

usepackage{amsmath, amssymb, bm}

usepackage[nottoc]{tocbibind}

usepackage{icomma,dcolumn,booktabs}



newcommand{mc}[1]{multicolumn{1}{c}{#1}}

usepackage{tabularx, ragged2e}

newcolumntype{d}[1]{D{.}{,}{#1}}

newcolumntype{L}{>{RaggedRightarraybackslash}X}



begin{document}



begin{table}small

setlengthtabcolsep{3pt}

begin{tabularx}{textwidth}{@{} L *{8}{c} @{}}

toprule

Zdroj & $P$ & $T_0$ & $e$ & $omega$ & $i$ & $a$ & $a$ & $M_1$ \[0.33ex]

& (dny) & (RJD) & & ($^circ$) & ($mathrm{M}_{odot}$) & ($mathrm{M}_{odot}$) \

midrule

1 & 5,732436(15) & 54002,780(46) & 0,0910(37) & 12.345 & 123.45 & 123.45 \

bottomrule

addlinespace

multicolumn{6}{@{}l}{footnotesizetextit{Pozn:} $^a$ Směrodatná chyba odhadu metodou Monte Carlo.}

end{tabularx}



caption{Maximálně věrohodné odhady v~modelu M.}label{tab03:Nejaka}

end{table}



end{document}