外生变量的介绍 什么叫内生变量与外生变量
\u4ec0\u4e48\u53eb\u5185\u751f\u53d8\u91cf\u4e0e\u5916\u751f\u53d8\u91cf\uff1f\u5728\u7ecf\u6d4e\u6a21\u578b\u4e2d\uff0c\u5185\u751f\u53d8\u91cf\uff08endogenous variables\uff09\u662f\u6307\u8be5\u6a21\u578b\u6240\u8981\u51b3\u5b9a\u7684\u53d8\u91cf\u3002\u5185\u751f\u53d8\u91cf\u53ef\u4ee5\u5728\u6a21\u578b\u4f53\u7cfb\u5185\u5f97\u5230\u8bf4\u660e\uff0c\u5916\u751f\u53d8\u91cf\u672c\u8eab\u4e0d\u80fd\u5728\u6a21\u578b\u4f53\u7cfb\u4e2d\u5f97\u5230\u8bf4\u660e\u3002
\u5916\u751f\u53d8\u91cf(exogenous variable)\u4ea6\u79f0\u201c\u8f93\u5165\u53d8\u91cf\u201d\u3002\u5b8c\u5168\u7531\u7ecf\u6d4e\u7cfb\u7edf\u5916\u90e8\u786e\u5b9a\u5e76\u8f93\u5165\u7cfb\u7edf\u7684\u53d8\u91cf\uff0c\u5b83\u53ea\u5bf9\u7cfb\u7edf\u4ea7\u751f\u5f71\u54cd\u800c\u4e0d\u53d7\u7cfb\u7edf\u7684\u5f71\u54cd\u3002\u5728\u7ecf\u6d4e\u8ba1\u91cf\u6a21\u578b\u4e2d\uff0c\u5916\u751f\u53d8\u91cf\u662f\u4e0e\u6a21\u578b\u7684\u968f\u673a\u6270\u52a8\u9879\u4e0d\u76f8\u5173\u7684\u53d8\u91cf\u3002
\u522b\u79f0
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\u5bf9\u8054\u7acb\u65b9\u7a0b\u6a21\u578b\u7cfb\u7edf\u800c\u8a00\uff0c\u5df2\u7ecf\u4e0d\u80fd\u7528\u88ab\u89e3\u91ca\u53d8\u91cf\u4e0e\u89e3\u91ca\u53d8\u91cf\u6765\u5212\u5206\u53d8\u91cf\uff0c\u800c\u5c06\u53d8\u91cf\u5206\u4e3a\u5185\u751f\u53d8\u91cf\u548c\u5916\u751f\u53d8\u91cf\u4e24\u5927\u7c7b\u3002\u5185\u751f\u53d8\u91cf\u662f\u5177\u6709\u67d0\u79cd\u6982\u7387\u5206\u5e03\u7684\u968f\u673a\u53d8\u91cf\uff0c\u5b83\u7684\u53c2\u6570\u662f\u8054\u7acb\u65b9\u7a0b\u7cfb\u7edf\u4f30\u8ba1\u7684\u5143\u7d20\u3002\u5185\u751f\u53d8\u91cf\u662f\u7531\u6a21\u578b\u7cfb\u7edf\u51b3\u5b9a\u7684\u3002
\u4ee5\u4e0a\u5185\u5bb9\u53c2\u8003\uff1a\u767e\u5ea6\u767e\u79d1-\u5185\u751f\u53d8\u91cf
1\u3001\u5728\u7ecf\u6d4e\u6a21\u578b\u4e2d\uff0c\u5185\u751f\u53d8\u91cf\uff08endogenous variables\uff09\u662f\u6307\u8be5\u6a21\u578b\u6240\u8981\u51b3\u5b9a\u7684\u53d8\u91cf\u3002\u5185\u751f\u53d8\u91cf\u53ef\u4ee5\u5728\u6a21\u578b\u4f53\u7cfb\u5185\u5f97\u5230\u8bf4\u660e\uff0c\u5916\u751f\u53d8\u91cf\u672c\u8eab\u4e0d\u80fd\u5728\u6a21\u578b\u4f53\u7cfb\u4e2d\u5f97\u5230\u8bf4\u660e\u3002
2\u3001\u5916\u751f\u53d8\u91cf(exogenous variable)\u4ea6\u79f0\u201c\u8f93\u5165\u53d8\u91cf\u201d\u3002\u5b8c\u5168\u7531\u7ecf\u6d4e\u7cfb\u7edf\u5916\u90e8\u786e\u5b9a\u5e76\u8f93\u5165\u7cfb\u7edf\u7684\u53d8\u91cf\uff0c\u5b83\u53ea\u5bf9\u7cfb\u7edf\u4ea7\u751f\u5f71\u54cd\u800c\u4e0d\u53d7\u7cfb\u7edf\u7684\u5f71\u54cd\u3002\u5728\u7ecf\u6d4e\u8ba1\u91cf\u6a21\u578b\u4e2d\uff0c\u5916\u751f\u53d8\u91cf\u662f\u4e0e\u6a21\u578b\u7684\u968f\u673a\u6270\u52a8\u9879\u4e0d\u76f8\u5173\u7684\u53d8\u91cf\u3002
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\u5185\u751f\u53d8\u91cf\u5176\u4ed6\u76f8\u5173\uff1a
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\u5728\u63a8\u52a8\u793e\u4f1a\u8fdb\u6b65\u65f6\uff0c\u8981\u6709\u6548\u7684\u6539\u53d8\u5185\u751f\u53d8\u91cf\u5fc5\u987b\u4ece\u6539\u53d8\u51b3\u5b9a\u5185\u751f\u53d8\u91cf\u7684\u5916\u751f\u53d8\u91cf\u7740\u624b\uff0c\u5982\u679c\u4e0d\u6539\u53d8\u5916\u751f\u53d8\u91cf\u800c\u60f3\u53bb\u76f4\u63a5\u6539\u53d8\u5185\u751f\u53d8\u91cf\uff0c\u90a3\u4e48\uff0c\u4e0d\u4ec5\u4f1a\u4e8b\u4e0e\u613f\u8fdd\uff0c\u800c\u4e14\uff0c\u5f88\u53ef\u80fd\u628a\u4e8b\u60c5\u641e\u5f97\u66f4\u7cdf\u3002
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\u4ee5\u4e0a\u5185\u5bb9\u53c2\u8003 \u767e\u5ea6\u767e\u79d1-\u5916\u751f\u53d8\u91cf\uff1b\u767e\u5ea6\u767e\u79d1-\u5185\u751f\u53d8\u91cf
外生变量（exogenous variable）是指那些在模型或系统中，只起解释变量作用的变量。它们在模型或系统中，只影响其他变量，而不受其他变量的影响。在路径图中，只有指向其他变量的箭头，没有箭头指向它的变量均为外生变量。在结构方程模型中，外生潜变量通常用ξ表示。外生变量相当于数学中的常数，与自变量和因变量无关。
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绛旓細鍦ㄧ粡娴庢ā鍨嬩腑锛屽唴鐢熷彉閲忥紙endogenousvariables锛夋槸鎸囪妯″瀷鎵瑕佸喅瀹氱殑鍙橀噺銆傚唴鐢熷彉閲忓彲浠ュ湪妯″瀷浣撶郴鍐呭緱鍒拌鏄庯紝澶栫敓鍙橀噺鏈韩涓嶈兘鍦ㄦā鍨嬩綋绯讳腑寰楀埌璇存槑銆備竴涓ā鍨嬬殑鑷彉閲忋佸洜鍙橀噺閮芥槸鍐呯敓鍙橀噺锛屾槸鈥滀竴绉嶇悊璁哄唴鎵瑕佽В閲婄殑鍙橀噺鈥濓紝閮芥槸鐢辨ā鍨嬪喅瀹氱殑銆傚鐢熷彉閲(exogenousvariable)浜︾О鈥滆緭鍏ュ彉閲忊濄傚畬鍏ㄧ敱...
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