
Boa tarde, Eu estava verificando os diferentes modos de coletar dados intraday do yahoo e percebi que para cada função que eu uso, os dados obtidos são diferentes. Por exemplo, se eu uso: dados <- readLines(' http://chartapi.finance.yahoo.com/instrument/1.0/AAPL/chartdata;type=quote;range=1d/csv',sep = ",", dec = ".") eu obtenho: "18" "1427203800,127.1800,127.2600,127.0000,127.2300,631900" "19" "1427203868,126.9200,127.1900,126.8750,127.1700,202000" "20" "1427203920,126.9600,127.0600,126.8700,126.9100,189500" "21" "1427203981,126.9500,126.9900,126.8800,126.8900,198200" "22" "1427204099,126.7799,126.9900,126.7700,126.9500,217500" "23" "1427204100,126.6700,126.9000,126.6401,126.7799,286300" "24" "1427204219,126.7100,126.8000,126.6500,126.6800,222800" "25" "1427204221,126.8300,126.8700,126.5600,126.7000,238500" "26" "1427204280,126.7100,126.9200,126.6700,126.8200,167500" "27" "1427204340,126.8300,126.9300,126.7000,126.7166,114900" "28" "1427204457,126.6400,126.8300,126.6000,126.8100,156100" "29" "1427204460,126.6500,126.7900,126.6385,126.6900,102800" se eu uso: dados <- getURL(' http://chartapi.finance.yahoo.com/instrument/1.0/AAPL/chartdata;type=quote;range=1d/csv',sep = ",", dec = ".") obtenho: 1427203805,127.1900,127.2600,127.0796,127.2000,626100 1427203862,126.9200,127.1900,126.8750,127.1800,207800 1427203979,126.9000,127.0600,126.8700,126.9100,198000 1427203980,126.9500,126.9900,126.8800,126.9000,172200 1427204099,126.7799,126.9900,126.7700,126.9500,235000 1427204100,126.6700,126.9000,126.6401,126.7799,286300 1427204219,126.7100,126.8000,126.6500,126.6800,222800 1427204221,126.8300,126.8700,126.5600,126.7000,238500 1427204280,126.7100,126.9200,126.6700,126.8200,167500 1427204340,126.8300,126.9300,126.7000,126.7166,114900 1427204459,126.6915,126.8300,126.6100,126.8100,160900 1427204460,126.6500,126.7900,126.6385,126.6900,98000 Usando read.csv também dá dados diferentes de começo. Alguem saberia me dizer o por que? E em qual devo confiar? Porque nenhuma é igualzinha ao que aparece quando você coloca esse endereço http://chartapi.finance.yahoo.com/instrument/1.0/AAPL/chartdata;type=quote;r... no navegador. O resultado deste é: 1427203800,127.1200,127.2300,127.0000,127.2300,631900 1427203900,127.0300,127.1900,127.0000,127.1700,87400 1427203978,126.9200,127.0400,126.8700,126.9050,309600 1427204038,126.9600,126.9900,126.8800,126.9399,174900 1427204099,126.7799,126.9900,126.7700,126.9600,235300 1427204100,126.6700,126.9000,126.6401,126.7799,286300 1427204219,126.7100,126.8000,126.6500,126.6800,222800 1427204221,126.8300,126.8700,126.5600,126.7000,238500 1427204280,126.7100,126.9200,126.6700,126.8200,167500 1427204340,126.8300,126.9300,126.7000,126.7166,114900 1427204459,126.6915,126.8300,126.6000,126.8100,160900 1427204460,126.6500,126.7900,126.6385,126.6900,98000 1427204520,126.7100,126.7200,126.6000,126.6500,108700 1427204581,126.7100,126.8400,126.6800,126.7100,129600 1427204641,126.7400,126.7700,126.6600,126.7300,98700 Obrigada, Michelle