Add variance around line with Tikzpicture

Question

I plotted a line using 10 coordinates from between 0 to 1 in 0.1 step size. Each Y-coordinate is an average value. I have the variance for each average value and want to plot a filled area around the function that depicts the variance. My code so far:

\documentclass{article}
\usepackage{graphicx}
\usepackage{subcaption}
\usepackage{subfig}
\usepackage{pgfplots}
\pgfplotsset{compat=newest}
\begin{document}
\begin{figure}[h!]
\begin{subfigure}[t]{0.82\textwidth}
      \resizebox{1\textwidth}{!}{%
        \begin{tikzpicture} 
          \begin{axis}[
          xmin=0, xmax=1.1,
          ymin=16.9, ymax=17.3,
          xlabel={x}, ylabel={y}, axis lines=left,
          xtick={0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1},
          xticklabels={0, , , , , 0.5, , , , , 1},
          ytick distance={0.1},
          xticklabel style={rotate=-0, yshift=-0.4ex},
          xlabel style={anchor=north},
          xmajorgrids=true,
          grid style=dashed,
          legend pos=outer north east,
          height=6cm, 
          ]
          \addplot coordinates { 
            (0,   17.2)
            (0.1, 16.91)
            (0.2, 17.04)
            (0.3, 17.26)
            (0.4, 17.11)
            (0.5, 17.08)
            (0.6, 17.11)
            (0.7, 17.24)
            (0.8, 17.23)
            (0.9, 17.16)
            (1,   17.22)
          };
          \end{axis} 
        \end{tikzpicture}
      }
      \caption{my cap}
      \end{subfigure}%
\end{figure}
\end{document}

For example each Y-coordinate should have a variance of 0.1 to 0.3, visualized as filling around the function/line. I want to specify the variance, thus the size of the "tube" around the function for each of the 10 points individually. How to accomplish this? My variance values are:

(0,   0.03)
(0.1, 0.03)
(0.2, 0.06)
(0.3, 0.01)
(0.4, 0.02)
(0.5, 0.03)
(0.6, 0.05)
(0.7, 0.11)
(0.8, 0.04)
(0.9, 0.09)
(1,   0.05)

The variance should look something like the gray filled area in this example:

Answer 1

I solved it. When using coordinates, one has to draw two new lines and give them names. One for the upper limit of variance/sd and one for the lower limit. Then fill the area in between those named lines. Two more command are needed after the package loading for this functionality.

\documentclass{article}
\usepackage{graphicx}
\usepackage{subcaption}
\usepackage{subfig}
\usepackage{pgfplots}
\pgfplotsset{compat=newest}
\usetikzlibrary{intersections}   % added (!)
\usepgfplotslibrary{fillbetween} % added (!)
\begin{document}
\begin{figure}[h!]
\begin{subfigure}[t]{0.82\textwidth}
      \resizebox{1\textwidth}{!}{%
        \begin{tikzpicture} 
          \begin{axis}[
          xmin=0, xmax=1.1,
          ymin=16.9, ymax=17.3,
          xlabel={x}, ylabel={y}, axis lines=left,
          xtick={0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1},
          xticklabels={0, , , , , 0.5, , , , , 1},
          ytick distance={0.1},
          xticklabel style={rotate=-0, yshift=-0.4ex},
          xlabel style={anchor=north},
          xmajorgrids=true,
          grid style=dashed,
          legend pos=outer north east,
          height=6cm, 
          ]
          \addplot coordinates { 
            (0,   17.2)
            (0.1, 16.91)
            (0.2, 17.04)
            (0.3, 17.26)
            (0.4, 17.11)
            (0.5, 17.08)
            (0.6, 17.11)
            (0.7, 17.24)
            (0.8, 17.23)
            (0.9, 17.16)
            (1,   17.22)
          };
          \addplot[name path=down,color=blue!70] coordinates { 
            (0,   17.1)
            (0.1, 16.81)
            (0.2, 17.00)
            (0.3, 17.16)
            (0.4, 17.01)
            (0.5, 17.00)
            (0.6, 16.90)
            (0.7, 17.14)
            (0.8, 17.13)
            (0.9, 17.06)
            (1,   17.00)
          };
          \addplot[name path=up,color=blue!70] coordinates { 
            (0,   17.3)
            (0.1, 17.05)
            (0.2, 17.14)
            (0.3, 17.35)
            (0.4, 17.23)
            (0.5, 17.2)
            (0.6, 17.21)
            (0.7, 17.34)
            (0.8, 17.33)
            (0.9, 17.26)
            (1,   17.30)
          };
          \addplot[blue!50,fill opacity=0.4] fill between[of=down and up];
          \end{axis} 
        \end{tikzpicture}
      }
      \caption{my cap}
      \end{subfigure}%
\end{figure}
\end{document}

One drawback is, that this solution is not concise at all. However, it gives a nice drawing without any bars. I build the solution from following questions: Q1 and Q2.

Result, with slightly adapted range: