yt:channel:UCyz4M1pwJBNfjMFaUCHCNUQ UCyz4M1pwJBNfjMFaUCHCNUQ François Husson https://www.youtube.com/channel/UCyz4M1pwJBNfjMFaUCHCNUQ 2011-10-14T17:08:22+00:00 yt:video:666OzkmvYbs 666OzkmvYbs UCyz4M1pwJBNfjMFaUCHCNUQ François Husson https://www.youtube.com/channel/UCyz4M1pwJBNfjMFaUCHCNUQ 2017-07-11T15:12:20+00:00 2017-08-05T08:10:44+00:00 Summary on multivariate exploratory data analysis What are the important questions that are necessary to answer before performing a principal component method such as Principal Component Analysis, Correspondence Analysis, Multiple Correspondence Analysis, Multiple Factor Analysis ? How to interpret the results of the principal component method ? See the videos on Youtube: http://www.youtube.com/user/HussonFrancois yt:video:7HHuKsl2_fk 7HHuKsl2_fk UCyz4M1pwJBNfjMFaUCHCNUQ François Husson https://www.youtube.com/channel/UCyz4M1pwJBNfjMFaUCHCNUQ 2017-07-11T13:45:01+00:00 2017-08-05T11:41:45+00:00 Multiple Factor Analysis (MFA) using FactoMineR How to perform a multiple factor analysis that handles several groups of continuous and/or categorical variables and/or contingency tables? And how can we improve the graphs obtained by the method? yt:video:Vumu7OoFHdA Vumu7OoFHdA UCyz4M1pwJBNfjMFaUCHCNUQ François Husson https://www.youtube.com/channel/UCyz4M1pwJBNfjMFaUCHCNUQ 2017-07-11T08:22:52+00:00 2017-07-11T10:35:36+00:00 Course on Multiple Factor Analysis: Complements (part 4/4) How to compare several groups of qualitative variables? How to compare several contingency tables? And how to add supplementary information to interpret the results in MFA yt:video:OVtNX6Or1FI OVtNX6Or1FI UCyz4M1pwJBNfjMFaUCHCNUQ François Husson https://www.youtube.com/channel/UCyz4M1pwJBNfjMFaUCHCNUQ 2017-07-11T06:59:05+00:00 2017-08-04T07:14:53+00:00 Course on Multiple Factor Analysis: Groups of variables (part 3/4) Multiple Factor Analysis takes into account a group structure on the variables and gives graphical representations that are specific to study the links between groups: a group represntation that gives globally the link between groups, a partial representation that shows how each individual is seen from one group to another, and a group with the partial axes. yt:video:kGSjHD3yG84 kGSjHD3yG84 UCyz4M1pwJBNfjMFaUCHCNUQ François Husson https://www.youtube.com/channel/UCyz4M1pwJBNfjMFaUCHCNUQ 2017-07-11T06:36:00+00:00 2017-08-04T06:51:37+00:00 Course on Multiple Factor Analysis: Weighting and global PCA (part 2/4) Multiple Factor Analysis consider simultaneously several groups of variables. This video shows how MFA balances the influence of each group in a global analysis. The weighting allows us to perform a global PCA on a weithed table. yt:video:MOl0Aw1TTFE MOl0Aw1TTFE UCyz4M1pwJBNfjMFaUCHCNUQ François Husson https://www.youtube.com/channel/UCyz4M1pwJBNfjMFaUCHCNUQ 2017-07-10T15:07:16+00:00 2017-07-19T09:01:28+00:00 Course on Multiple Factor Analysis: introduction (part 1/4) Multiple Factor Analysis is a principal Component Methods that deal with datasets that contain variables that are structured by groups. It can deals with different sources of information. yt:video:W1my-DEoPZ0 W1my-DEoPZ0 UCyz4M1pwJBNfjMFaUCHCNUQ François Husson https://www.youtube.com/channel/UCyz4M1pwJBNfjMFaUCHCNUQ 2017-07-10T12:57:08+00:00 2017-07-10T14:56:34+00:00 Exemple d'analyse des correspondances sur des données textuelles Exemple d'analyse des correspondances sur des données textuelles Comparaison de la description de méthodes d'analyse de données yt:video:clXIk0bE8dc clXIk0bE8dc UCyz4M1pwJBNfjMFaUCHCNUQ François Husson https://www.youtube.com/channel/UCyz4M1pwJBNfjMFaUCHCNUQ 2017-07-10T11:47:44+00:00 2017-07-10T12:30:19+00:00 Cours d'analyse des correspondances : aides à l'interprétation (partie 5/5) Les aides à l'interprétation en analyse des correspondances. Qualité de représentation, contribution des lignes et colonnes à la construction des axes. yt:video:QgASpH8zVo4 QgASpH8zVo4 UCyz4M1pwJBNfjMFaUCHCNUQ François Husson https://www.youtube.com/channel/UCyz4M1pwJBNfjMFaUCHCNUQ 2017-07-10T10:11:07+00:00 2017-07-10T19:49:37+00:00 Cours d'analyse des correspondances : inertie et pourcentage d'inertie (partie 3/5) L'inertie joue un rôle particulier en analyse des correspondances. Cela permet de comprendre l'intensité de la liaison mise en évidence en AFC. yt:video:B2mAeRRBunk B2mAeRRBunk UCyz4M1pwJBNfjMFaUCHCNUQ François Husson https://www.youtube.com/channel/UCyz4M1pwJBNfjMFaUCHCNUQ 2017-07-10T10:10:02+00:00 2017-07-10T11:06:48+00:00 Cours d'analyse des correspondances : visualisation du nuage des lignes et des colonnes (partie 2/5) Visualisation des nuages de lignes et du nuage des colonnes en analyse des correspondances yt:video:EL88lwm-Kkc EL88lwm-Kkc UCyz4M1pwJBNfjMFaUCHCNUQ François Husson https://www.youtube.com/channel/UCyz4M1pwJBNfjMFaUCHCNUQ 2017-07-10T08:37:39+00:00 2017-07-10T09:17:38+00:00 Cours d'analyse des correspondances : la représentation simultanée (partie 4/5) Analyse des correspondances : la représentation simultanée est cruciale en AFC puisqu'elle permet de positionner lignes et colonnes sur un même graphe. yt:video:KsSmAwiNKnw KsSmAwiNKnw UCyz4M1pwJBNfjMFaUCHCNUQ François Husson https://www.youtube.com/channel/UCyz4M1pwJBNfjMFaUCHCNUQ 2017-07-10T08:27:52+00:00 2017-07-21T13:37:37+00:00 Cours d'analyse des correspondances : données et modèle d'indépendance (partie 1/5) Cours d'analyse factorielle des correspondances. Quelles données ? Définition du modèle d'indépendance. Analyse d'un tableau croisé. yt:video:EJqYTDTJJug EJqYTDTJJug UCyz4M1pwJBNfjMFaUCHCNUQ François Husson https://www.youtube.com/channel/UCyz4M1pwJBNfjMFaUCHCNUQ 2016-12-15T15:45:40+00:00 2017-08-05T01:49:49+00:00 Clustering with FactoMineR How to perform clustering with FactoMineR? How to consolidate the clustering? And how can we describe the clusters? yt:video:QO0bwMbp50I QO0bwMbp50I UCyz4M1pwJBNfjMFaUCHCNUQ François Husson https://www.youtube.com/channel/UCyz4M1pwJBNfjMFaUCHCNUQ 2016-12-15T15:32:56+00:00 2017-07-18T10:12:10+00:00 Factoshiny: interactive graphs in exploratory multivariate data analysis How to use Factoshiny, the library that allows us to use FactoMineR with a graphical user interface and that allow us to make interactive graphs. yt:video:OOM8_FH6_8o OOM8_FH6_8o UCyz4M1pwJBNfjMFaUCHCNUQ François Husson https://www.youtube.com/channel/UCyz4M1pwJBNfjMFaUCHCNUQ 2016-12-15T15:32:24+00:00 2017-07-26T10:05:54+00:00 Handling missing values in PCA How to deal with missing values in PCA? Presentation of the missMDA package. How to perform multiple imputation in PCA.