pgfplots-从一张表创建多个图（第0-3行、第4-7行……）

Question

\foreach是的，这是可能的。您的解决方案不起作用的主要问题是，因为\n+3没有评估。您可以通过在“手动”解决方案中替换来测试这一点select coords between index={12}{15}，select coords between index={12}{12+3}这将引发错误。

我认为除了最后两个问题之外，我已经回答了你所有的“额外（边缘）问题”。关于 5) 我不喜欢网格线，但你已经找到了解决方案，所以我认为如果你真的想要/需要它们，你可以自己应用它。关于 6) 我不确定你是否真的只是想输出“整个文档”的 PDF，或者只是创建图的 PDF（单独）。

有关更多详细信息，请查看代码中的注释。

% used PGFPlots v1.14
\documentclass[border=5pt]{standalone}
\usepackage{xstring}        % <-- needed for string manipulation
\usepackage{pgfplots}
\usepackage{pgfplotstable}
    \pgfplotsset{
        % use at least this `compat' level to improve placing of axis labels
        compat=1.3,
        % (almost the) opposite of `skip coords between index'
        % only use x values when the `\coordindex' lays between the two
        % arguments (including), else "skip" them by setting the value to "NaN"
        select coords between index/.style 2 args={
            x filter/.code={
                \pgfmathifthenelse{or(\coordindex<#1,\coordindex>#2)}{NaN}{x}
                \pgfmathresult
            },
        },
        table/col sep=comma,
        table/ignore chars=\%,
    }
    % define a command to create the legend entries
    % (give the row number to the argument)
    \newcommand{\CustomLegend}[1]{
        % store the "Benchmark" entry of the given row number in `\Benchmark'
        \pgfplotstablegetelem{#1}{"Benchmark"}\of{\table}
            \edef\Benchmark{\pgfplotsretval}
        % store the "Capacity" entry of the given row number in `\Capacity'
        \pgfplotstablegetelem{#1}{"Param: capacity"}\of{\table}
            \edef\Capacity{\pgfplotsretval}
        % create the legend entry
        \addlegendentryexpanded{
            % only use the part of `\Benchmark' between the given two strings
            \noexpand\StrBetween{\Benchmark}{impl.}{s.test}
            % append the capacity entry in brackets if the "Benchmark" entry
            % ends with the given string (else return an empty string)
            \noexpand\IfEndWith{\Benchmark}{ArrayList"}{%
                (\Capacity)
            }{}
        }
    }
\begin{document}
    \begin{tikzpicture}
            % read the table from the file
            \pgfplotstableread{lists-results.csv}{\table}
        \begin{axis}[
            title=Lists collections performance,
            xlabel=Objects,
            % changed y axis label and corresponding style
            ylabel=Add operations in million ops/s,
            % use an index for the data points and get the labels from the table
            xtick={0,...,10},
            xticklabels from table={\table}{"Param: objects"},
            y tick label style={
                ytick scale label code/.code={},
                scaled y ticks=base 10:-6,
            },
            % changed positioning of the legend
            legend pos=outer north east,
            % use left alignment for labels in legend
            legend cell align=left,
        ]
            \foreach \n in {0,4,...,12}{
                \addplot+[mark=o,select coords between index={\n}{\n+3}] table [
                % to avoid a numerical issue I have added "+0.1" to x
                % (otherwise for \n=16 the modulus would return 4, because
                % 16 would be something like 15.999)
                    x expr={int(mod(\coordindex + 0.1,4))},
                    y expr=\thisrow{"Score"}*\thisrow{"Param: objects"},
                ] {\table};
                    \CustomLegend{\n}
            }
        \end{axis}
    \end{tikzpicture}
\end{document}

Answer 1

\foreach是的，这是可能的。您的解决方案不起作用的主要问题是，因为\n+3没有评估。您可以通过在“手动”解决方案中替换来测试这一点select coords between index={12}{15}，select coords between index={12}{12+3}这将引发错误。

我认为除了最后两个问题之外，我已经回答了你所有的“额外（边缘）问题”。关于 5) 我不喜欢网格线，但你已经找到了解决方案，所以我认为如果你真的想要/需要它们，你可以自己应用它。关于 6) 我不确定你是否真的只是想输出“整个文档”的 PDF，或者只是创建图的 PDF（单独）。

有关更多详细信息，请查看代码中的注释。

% used PGFPlots v1.14
\documentclass[border=5pt]{standalone}
\usepackage{xstring}        % <-- needed for string manipulation
\usepackage{pgfplots}
\usepackage{pgfplotstable}
    \pgfplotsset{
        % use at least this `compat' level to improve placing of axis labels
        compat=1.3,
        % (almost the) opposite of `skip coords between index'
        % only use x values when the `\coordindex' lays between the two
        % arguments (including), else "skip" them by setting the value to "NaN"
        select coords between index/.style 2 args={
            x filter/.code={
                \pgfmathifthenelse{or(\coordindex<#1,\coordindex>#2)}{NaN}{x}
                \pgfmathresult
            },
        },
        table/col sep=comma,
        table/ignore chars=\%,
    }
    % define a command to create the legend entries
    % (give the row number to the argument)
    \newcommand{\CustomLegend}[1]{
        % store the "Benchmark" entry of the given row number in `\Benchmark'
        \pgfplotstablegetelem{#1}{"Benchmark"}\of{\table}
            \edef\Benchmark{\pgfplotsretval}
        % store the "Capacity" entry of the given row number in `\Capacity'
        \pgfplotstablegetelem{#1}{"Param: capacity"}\of{\table}
            \edef\Capacity{\pgfplotsretval}
        % create the legend entry
        \addlegendentryexpanded{
            % only use the part of `\Benchmark' between the given two strings
            \noexpand\StrBetween{\Benchmark}{impl.}{s.test}
            % append the capacity entry in brackets if the "Benchmark" entry
            % ends with the given string (else return an empty string)
            \noexpand\IfEndWith{\Benchmark}{ArrayList"}{%
                (\Capacity)
            }{}
        }
    }
\begin{document}
    \begin{tikzpicture}
            % read the table from the file
            \pgfplotstableread{lists-results.csv}{\table}
        \begin{axis}[
            title=Lists collections performance,
            xlabel=Objects,
            % changed y axis label and corresponding style
            ylabel=Add operations in million ops/s,
            % use an index for the data points and get the labels from the table
            xtick={0,...,10},
            xticklabels from table={\table}{"Param: objects"},
            y tick label style={
                ytick scale label code/.code={},
                scaled y ticks=base 10:-6,
            },
            % changed positioning of the legend
            legend pos=outer north east,
            % use left alignment for labels in legend
            legend cell align=left,
        ]
            \foreach \n in {0,4,...,12}{
                \addplot+[mark=o,select coords between index={\n}{\n+3}] table [
                % to avoid a numerical issue I have added "+0.1" to x
                % (otherwise for \n=16 the modulus would return 4, because
                % 16 would be something like 15.999)
                    x expr={int(mod(\coordindex + 0.1,4))},
                    y expr=\thisrow{"Score"}*\thisrow{"Param: objects"},
                ] {\table};
                    \CustomLegend{\n}
            }
        \end{axis}
    \end{tikzpicture}
\end{document}

pgfplots-从一张表创建多个图（第0-3行、第4-7行……）

答案1

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