This method is suitable for forecasting data with no clear trend or seasonal pattern.
Utilizar cuando no hay tendencia ni patrones estacionales.
8 Matching Annotations
- Aug 2022
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otexts.com otexts.com
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- Jul 2022
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www.feat.engineering www.feat.engineering
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For the qualitative conditions, the percentage of the day that was listed as “Clear”, “Overcast”, etc. can be calculated so that weather conditions for a specific day are incorporated into the data set used for analysis.
En lugar de utilizar el primero que aparezca, colocar el que obtuvo un mayor porcentaje.
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www.feat.engineering www.feat.engineering
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Algorithms for tree-based models can naturally handle splitting numeric or categorical predictors.
Los modelos basados en árboles pueden manejar de forma nautal las variables categóricas sin necesidad de crear variables indicadoras.
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the ZIP code also qualifies as a qualitative predictor because the numeric values have no continuous meaning.
Esto es equivalente a la zona y por lo tanto se debe codificar como factor.
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www.feat.engineering www.feat.engineering
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The traditional χ2χ2\chi^2 test uses the deviations from these expected values to assess the association between the variables by adding up functions of this type of cell residuals. If the two variables in the table are strongly associated, the overall χ2χ2\chi^2 statistic is large. Instead of summing up these residual functions, correspondence analysis analyzes them to determine new variables that account for the largest fraction of these statistics42.
Por que usar el análisis de correspondencia en lugar de la prueba de Chi Cuadrado
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If there were no relationship, all of the rates would be approximately the same.
En cambio si no hubiera relación, todas las proporciones fueran las mismas.
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Since there is a gradation of rates of STEM professions between the groups, it would appear so.
Si observas una gradación en la proporción entre grupos, entonces se puede decir que están relacionados con la respuesta.
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the number of profiles in each religion can obviously affect the variation in the proportion of STEM profiles
Cuanto tenemos datos desbalanceados, las proporciones que se ven con barras va a variar.
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