我正在尝试用浮点数编译一个简单的 tikz 图，但出现了错误Dimension too large。tikz 文件使用不同的数据集，所以我猜问题与数据表有关。知道出了什么问题吗？
我的.tex：
\documentclass[letterpaper, 10 pt, conference]{ieeeconf}
\IEEEoverridecommandlockouts
\overrideIEEEmargins
\usepackage{amssymb}
\usepackage{algorithm}
\usepackage{algorithmic}
\newcommand{\tsc}[1]{\textsuperscript{#1}}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage{subcaption}
\usepackage{pgfplots}
\usepgfplotslibrary{groupplots}
\usepackage{pgfplotstable}
\usetikzlibrary{calc,trees,positioning,arrows,chains,shapes.geometric,%
decorations.pathreplacing,decorations.pathmorphing,shapes,%
matrix,shapes.symbols}
%(...)
\begin{figure}
\centering
\input{figs/feedback.tikz}
\caption{Plot of joi (Sensor \#1: CoM position along the X axis).}
\label{fig:feedback}
\end{figure}
%(...)
\end{document}
我的.tikz：
\begin{tikzpicture}
\pgfplotstableread{
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