相关系数的数值范围极其判断标准
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[-1,1]相关系数的数值范围
绛旓細涓銆鐩稿叧绯绘暟鐨瀹氫箟 鐩稿叧绯绘暟鏄 閲忎袱涓彉閲忎箣闂寸嚎鎬у叧绯诲己搴﹀拰鏂瑰悜鐨勭粺璁￠噺銆傚畠閫氳繃璁＄畻涓や釜鍙橀噺涔嬮棿鐨勫崗鏂瑰樊闄や互瀹冧滑鍚勮嚜鏍囧噯宸殑涔樼Н锛屽緱鍒颁竴涓粙浜-1鍒1涔嬮棿鐨勬暟鍊銆傝繖涓暟鍊煎彲浠ュ弽鏄犱袱涓彉閲忎箣闂寸殑绾挎у叧绯荤殑绱у瘑绋嬪害鍜屾柟鍚戙備簩銆佺浉鍏崇郴鏁扮殑鍙栧鑼冨洿 鐩稿叧绯绘暟鐨勫彇鍊艰寖鍥村湪-1鍒1涔嬮棿銆傚綋鐩稿叧绯绘暟涓-1...
绛旓細2.鐞嗚В鐨皵閫婄浉鍏崇郴鏁扮殑璁＄畻姝ラ 鐨皵閫婄浉鍏崇郴鏁扮殑璁＄畻闇瑕佷互涓嬪嚑涓楠わ細璁＄畻姣忎釜鍙橀噺鐨勫钩鍧囧硷紱璁＄畻姣忎釜鍙橀噺涓庡钩鍧囧肩殑宸硷紱灏嗘瘡涓彉閲忕殑宸肩浉涔橈紝骞舵眰鍜岋紱灏嗘瘡涓彉閲忕殑宸肩殑骞虫柟鐩镐箻锛屽苟姹傚拰锛涘皢宸肩浉涔樼殑鍜岄櫎浠ュ樊鍊煎钩鏂圭殑鍜岋紝寰楀埌鐩稿叧绯绘暟銆3.鍒ゆ柇鐩稿叧绯绘暟鐨鎰忎箟 鐩稿叧绯绘暟鐨勫彇鍊鑼冨洿鍦-1鍒1涔嬮棿锛...
绛旓細鍏蜂綋鏉ヨ锛屽綋鐩稿叧绯绘暟缁濆鍊间负1鏃讹紝琛ㄧず瀹屽叏鐩稿叧锛屽嵆涓涓彉閲忔槸鍙︿竴涓彉閲忕殑鍑芥暟锛0琛ㄧず涓嶇浉鍏筹紱0.3浠ヤ笅涓哄井寮辩浉鍏筹紝0.3鍒0.5涓轰綆搴︾浉鍏筹紝0.5鍒0.8涓烘樉钁楃浉鍏筹紝0.8浠ヤ笂鍒欎负楂樺害鐩稿叧銆傚湪瀹為檯搴旂敤涓紝濡傛鐜囪涓殑纭竵鎶涙幏闂锛屼紒涓氱墿娴佺殑搴撳瓨鍒嗛厤绛栫暐璇勪及锛浠ュ強鑱氱被鍒嗘瀽涓殑鏍峰搧鐩镐技搴鍒ゆ柇锛岀浉鍏...
绛旓細鐩稿叧绯绘暟鏄竴绉嶇敤浜庨噺鍖栦袱涓彉閲忎箣闂村叧绯诲己搴﹀拰鏂瑰悜鐨勬暟鎹缁熻閲忋傝缁嗚В閲婂涓嬶細涓銆佺浉鍏崇郴鏁板畾涔 鐩稿叧绯绘暟锛岄氬父琛ㄧず涓衡渞鈥濓紝瀹冩槸涓涓粙浜-1鍒1涔嬮棿鐨勬暟鍊锛岀敤浜庤 閲忎袱涓彉閲忎箣闂寸殑绾挎у叧绯汇傚綋鍙橀噺涔嬮棿瀛樺湪绾挎у叧绯绘椂锛岀浉鍏崇郴鏁板彲浠ュ府鍔╂垜浠簡瑙ｈ繖绉嶅叧绯荤殑寮哄害鍜屾柟鍚戙備簩銆鐩稿叧绯绘暟鐨鍙栧鑼冨洿鍙婂叾鎰忎箟 1...
绛旓細鐩稿叧绯绘暟鐨勭畝鍖栧叕寮忥細(鏈夊叕寮忕殑,杩欓噷鍐欎笉鍑烘潵)锛1锛鐩稿叧绯绘暟鐨勬暟鍊艰寖鍥鏄湪锛1鍜岋紜1涔嬮棿,鍗筹紞1鈮 鈮1,锛0涓烘鐩稿叧,锛0涓鸿礋鐩稿叧锛涳紙2锛鍒ゅ畾鏍囧噯锛氣垼 鈭ｏ紲0.3涓哄井寮辩浉鍏,0.3锛溾垼 鈭ｏ紲0.5涓轰綆搴︾浉鍏筹紱鈭 鈭=0鏃,涓嶇浉鍏,鈭 鈭=1鏃跺畬鍏ㄧ浉鍏.
绛旓細2銆佺浉鍏崇郴鏁板叿鏈夊绉版э紝鍗硏涓巠涔嬮棿鐨勭浉鍏崇郴鏁颁笌y涓巟涔嬮棿鐨勭浉鍏崇郴鏁扮浉绛夛紝鍗硆(xy) = r(yx)銆3銆鐩稿叧绯绘暟鐨勬暟鍊涓巟鍜寉鐨勫師鐐瑰拰灏哄害鏃犲叧锛屽嵆鏀瑰彉x鍜寉鐨勬暟鎹師鐐瑰拰璁￠噺灏哄害锛屼笉浼氭敼鍙樼浉鍏崇郴鏁扮殑鏁板笺傜浉鍏崇郴鏁扮殑璁＄畻锛氱浉鍏崇郴鏁扮殑鍙栧间粙浜-1鍒1涔嬮棿銆傚綋鐩稿叧绯绘暟涓-1鏃讹紝琛ㄧず瀹屽叏璐熺浉鍏筹紝鎰忓懗鐫涓ら」...
绛旓細鐨皵閫鐩稿叧绯绘暟鍙樺寲浠-1鍒 +1锛屽綋r锛0琛ㄦ槑涓や釜鍙橀噺鏄鐩稿叧锛屽嵆涓涓彉閲鐨勫瓒婂ぇ锛屽彟涓涓彉閲忕殑鍊间篃浼氳秺澶э紱r锛0琛ㄦ槑涓や釜鍙橀噺鏄礋鐩稿叧锛屽嵆涓涓彉閲忕殑鍊艰秺澶у彟涓涓彉閲忕殑鍊煎弽鑰屼細瓒婂皬銆俽 鐨勭粷瀵瑰艰秺澶э紝鍒欎袱鍙橀噺鐩稿叧鎬ц秺寮恒傝嫢r=0锛岃〃鏄庝袱涓彉閲忛棿涓嶆槸绾挎х浉鍏筹紝浣嗗彲鑳藉瓨鍦ㄥ叾浠栨柟寮忕殑鐩稿叧锛...
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