###Contexto Una empresa con 5 tiendas en el país solicita un análisis de sus ventas de abarrotes entre mayo y noviembre del 2020.

###Importar la base de datos

df <- read.csv("C:\\Users\\memil\\OneDrive\\Desktop\\aaTecDeMonterrey\\5to Semestre\\SemanaTecProgra\\abarrotes.csv")

View(df)
summary(df)
##  vcClaveTienda        DescGiro         Codigo.Barras            PLU        
##  Length:200625      Length:200625      Min.   :8.347e+05   Min.   : 1.00   
##  Class :character   Class :character   1st Qu.:7.501e+12   1st Qu.: 1.00   
##  Mode  :character   Mode  :character   Median :7.501e+12   Median : 1.00   
##                                        Mean   :5.950e+12   Mean   : 2.11   
##                                        3rd Qu.:7.501e+12   3rd Qu.: 1.00   
##                                        Max.   :1.750e+13   Max.   :30.00   
##                                                            NA's   :199188  
##     Fecha               Hora              Marca            Fabricante       
##  Length:200625      Length:200625      Length:200625      Length:200625     
##  Class :character   Class :character   Class :character   Class :character  
##  Mode  :character   Mode  :character   Mode  :character   Mode  :character  
##                                                                             
##                                                                             
##                                                                             
##                                                                             
##    Producto             Precio          Ult.Costo         Unidades     
##  Length:200625      Min.   :-147.00   Min.   :  0.38   Min.   : 0.200  
##  Class :character   1st Qu.:  11.00   1st Qu.:  8.46   1st Qu.: 1.000  
##  Mode  :character   Median :  16.00   Median : 12.31   Median : 1.000  
##                     Mean   :  19.42   Mean   : 15.31   Mean   : 1.262  
##                     3rd Qu.:  25.00   3rd Qu.: 19.23   3rd Qu.: 1.000  
##                     Max.   :1000.00   Max.   :769.23   Max.   :96.000  
##                                                                        
##     F.Ticket      NombreDepartamento NombreFamilia      NombreCategoria   
##  Min.   :     1   Length:200625      Length:200625      Length:200625     
##  1st Qu.: 33964   Class :character   Class :character   Class :character  
##  Median :105993   Mode  :character   Mode  :character   Mode  :character  
##  Mean   :193990                                                           
##  3rd Qu.:383005                                                           
##  Max.   :450040                                                           
##                                                                           
##     Estado              Mts.2      Tipo.ubicación         Giro          
##  Length:200625      Min.   :47.0   Length:200625      Length:200625     
##  Class :character   1st Qu.:53.0   Class :character   Class :character  
##  Mode  :character   Median :60.0   Mode  :character   Mode  :character  
##                     Mean   :56.6                                        
##                     3rd Qu.:60.0                                        
##                     Max.   :62.0                                        
##                                                                         
##  Hora.inicio        Hora.cierre       
##  Length:200625      Length:200625     
##  Class :character   Class :character  
##  Mode  :character   Mode  :character  
##                                       
##                                       
##                                       
## 
library(tidyverse)
## Warning: package 'tidyverse' was built under R version 4.3.1
## Warning: package 'ggplot2' was built under R version 4.3.1
## Warning: package 'tibble' was built under R version 4.3.1
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## Warning: package 'readr' was built under R version 4.3.1
## Warning: package 'purrr' was built under R version 4.3.1
## Warning: package 'dplyr' was built under R version 4.3.1
## Warning: package 'stringr' was built under R version 4.3.1
## Warning: package 'forcats' was built under R version 4.3.1
## Warning: package 'lubridate' was built under R version 4.3.1
## ── Attaching core tidyverse packages ──────────────────────── tidyverse 2.0.0 ──
## ✔ dplyr     1.1.2     ✔ readr     2.1.4
## ✔ forcats   1.0.0     ✔ stringr   1.5.0
## ✔ ggplot2   3.4.3     ✔ tibble    3.2.1
## ✔ lubridate 1.9.2     ✔ tidyr     1.3.0
## ✔ purrr     1.0.2     
## ── Conflicts ────────────────────────────────────────── tidyverse_conflicts() ──
## ✖ dplyr::filter() masks stats::filter()
## ✖ dplyr::lag()    masks stats::lag()
## ℹ Use the conflicted package (<http://conflicted.r-lib.org/>) to force all conflicts to become errors

###Explorar la base de datos

tibble(df)
## # A tibble: 200,625 × 22
##    vcClaveTienda DescGiro  Codigo.Barras   PLU Fecha      Hora  Marca Fabricante
##    <chr>         <chr>             <dbl> <int> <chr>      <chr> <chr> <chr>     
##  1 MX001         Abarrotes 7501020540666    NA 19/06/2020 08:1… NUTR… MEXILAC   
##  2 MX001         Abarrotes 7501032397906    NA 19/06/2020 08:2… DAN … DANONE DE…
##  3 MX001         Abarrotes 7501000112845    NA 19/06/2020 08:2… BIMBO GRUPO BIM…
##  4 MX001         Abarrotes 7501031302741    NA 19/06/2020 08:2… PEPSI PEPSI-COL…
##  5 MX001         Abarrotes 7501026027543    NA 19/06/2020 08:2… BLAN… FABRICA D…
##  6 MX001         Abarrotes 7501020540666    NA 19/06/2020 08:1… NUTR… MEXILAC   
##  7 MX001         Abarrotes 7501032397906    NA 19/06/2020 08:2… DAN … DANONE DE…
##  8 MX001         Abarrotes 7501000112845    NA 19/06/2020 08:2… BIMBO GRUPO BIM…
##  9 MX001         Abarrotes 7501031302741    NA 19/06/2020 08:2… PEPSI PEPSI-COL…
## 10 MX001         Abarrotes 7501026027543    NA 19/06/2020 08:2… BLAN… FABRICA D…
## # ℹ 200,615 more rows
## # ℹ 14 more variables: Producto <chr>, Precio <dbl>, Ult.Costo <dbl>,
## #   Unidades <dbl>, F.Ticket <int>, NombreDepartamento <chr>,
## #   NombreFamilia <chr>, NombreCategoria <chr>, Estado <chr>, Mts.2 <int>,
## #   Tipo.ubicación <chr>, Giro <chr>, Hora.inicio <chr>, Hora.cierre <chr>
str(df)
## 'data.frame':    200625 obs. of  22 variables:
##  $ vcClaveTienda     : chr  "MX001" "MX001" "MX001" "MX001" ...
##  $ DescGiro          : chr  "Abarrotes" "Abarrotes" "Abarrotes" "Abarrotes" ...
##  $ Codigo.Barras     : num  7.5e+12 7.5e+12 7.5e+12 7.5e+12 7.5e+12 ...
##  $ PLU               : int  NA NA NA NA NA NA NA NA NA NA ...
##  $ Fecha             : chr  "19/06/2020" "19/06/2020" "19/06/2020" "19/06/2020" ...
##  $ Hora              : chr  "08:16:21" "08:23:33" "08:24:33" "08:24:33" ...
##  $ Marca             : chr  "NUTRI LECHE" "DAN UP" "BIMBO" "PEPSI" ...
##  $ Fabricante        : chr  "MEXILAC" "DANONE DE MEXICO" "GRUPO BIMBO" "PEPSI-COLA MEXICANA" ...
##  $ Producto          : chr  "Nutri Leche 1 Litro" "DANUP STRAWBERRY P/BEBER 350GR NAL" "Rebanadas Bimbo 2Pz" "Pepsi N.R. 400Ml" ...
##  $ Precio            : num  16 14 5 8 19.5 16 14 5 8 19.5 ...
##  $ Ult.Costo         : num  12.3 14 5 8 15 ...
##  $ Unidades          : num  1 1 1 1 1 1 1 1 1 1 ...
##  $ F.Ticket          : int  1 2 3 3 4 1 2 3 3 4 ...
##  $ NombreDepartamento: chr  "Abarrotes" "Abarrotes" "Abarrotes" "Abarrotes" ...
##  $ NombreFamilia     : chr  "Lacteos y Refrigerados" "Lacteos y Refrigerados" "Pan y Tortilla" "Bebidas" ...
##  $ NombreCategoria   : chr  "Leche" "Yogurt" "Pan Dulce Empaquetado" "Refrescos Plástico (N.R.)" ...
##  $ Estado            : chr  "Nuevo León" "Nuevo León" "Nuevo León" "Nuevo León" ...
##  $ Mts.2             : int  60 60 60 60 60 60 60 60 60 60 ...
##  $ Tipo.ubicación    : chr  "Esquina" "Esquina" "Esquina" "Esquina" ...
##  $ Giro              : chr  "Abarrotes" "Abarrotes" "Abarrotes" "Abarrotes" ...
##  $ Hora.inicio       : chr  "08:00" "08:00" "08:00" "08:00" ...
##  $ Hora.cierre       : chr  "22:00" "22:00" "22:00" "22:00" ...
head(df)
##   vcClaveTienda  DescGiro Codigo.Barras PLU      Fecha     Hora
## 1         MX001 Abarrotes  7.501021e+12  NA 19/06/2020 08:16:21
## 2         MX001 Abarrotes  7.501032e+12  NA 19/06/2020 08:23:33
## 3         MX001 Abarrotes  7.501000e+12  NA 19/06/2020 08:24:33
## 4         MX001 Abarrotes  7.501031e+12  NA 19/06/2020 08:24:33
## 5         MX001 Abarrotes  7.501026e+12  NA 19/06/2020 08:26:28
## 6         MX001 Abarrotes  7.501021e+12  NA 19/06/2020 08:16:21
##                        Marca                 Fabricante
## 1                NUTRI LECHE                    MEXILAC
## 2                     DAN UP           DANONE DE MEXICO
## 3                      BIMBO                GRUPO BIMBO
## 4                      PEPSI        PEPSI-COLA MEXICANA
## 5 BLANCA NIEVES (DETERGENTE) FABRICA DE JABON LA CORONA
## 6                NUTRI LECHE                    MEXILAC
##                             Producto Precio Ult.Costo Unidades F.Ticket
## 1                Nutri Leche 1 Litro   16.0     12.31        1        1
## 2 DANUP STRAWBERRY P/BEBER 350GR NAL   14.0     14.00        1        2
## 3                Rebanadas Bimbo 2Pz    5.0      5.00        1        3
## 4                   Pepsi N.R. 400Ml    8.0      8.00        1        3
## 5      Detergente Blanca Nieves 500G   19.5     15.00        1        4
## 6                Nutri Leche 1 Litro   16.0     12.31        1        1
##   NombreDepartamento          NombreFamilia           NombreCategoria
## 1          Abarrotes Lacteos y Refrigerados                     Leche
## 2          Abarrotes Lacteos y Refrigerados                    Yogurt
## 3          Abarrotes         Pan y Tortilla     Pan Dulce Empaquetado
## 4          Abarrotes                Bebidas Refrescos Plástico (N.R.)
## 5          Abarrotes     Limpieza del Hogar                Lavandería
## 6          Abarrotes Lacteos y Refrigerados                     Leche
##       Estado Mts.2 Tipo.ubicación      Giro Hora.inicio Hora.cierre
## 1 Nuevo León    60        Esquina Abarrotes       08:00       22:00
## 2 Nuevo León    60        Esquina Abarrotes       08:00       22:00
## 3 Nuevo León    60        Esquina Abarrotes       08:00       22:00
## 4 Nuevo León    60        Esquina Abarrotes       08:00       22:00
## 5 Nuevo León    60        Esquina Abarrotes       08:00       22:00
## 6 Nuevo León    60        Esquina Abarrotes       08:00       22:00
tail(df)
##        vcClaveTienda DescGiro Codigo.Barras PLU      Fecha     Hora
## 200620         MX005 Depósito   7.62221e+12  NA 12/07/2020 01:08:25
## 200621         MX005 Depósito   7.62221e+12  NA 23/10/2020 22:17:37
## 200622         MX005 Depósito   7.62221e+12  NA 10/10/2020 20:30:20
## 200623         MX005 Depósito   7.62221e+12  NA 10/10/2020 22:40:43
## 200624         MX005 Depósito   7.62221e+12  NA 27/06/2020 22:30:19
## 200625         MX005 Depósito   7.62221e+12  NA 26/06/2020 23:43:34
##                    Marca    Fabricante                          Producto Precio
## 200620 TRIDENT XTRA CARE CADBURY ADAMS Trident Xtracare Freshmint 16.32G      9
## 200621 TRIDENT XTRA CARE CADBURY ADAMS Trident Xtracare Freshmint 16.32G      9
## 200622 TRIDENT XTRA CARE CADBURY ADAMS Trident Xtracare Freshmint 16.32G      9
## 200623 TRIDENT XTRA CARE CADBURY ADAMS Trident Xtracare Freshmint 16.32G      9
## 200624 TRIDENT XTRA CARE CADBURY ADAMS Trident Xtracare Freshmint 16.32G      9
## 200625 TRIDENT XTRA CARE CADBURY ADAMS Trident Xtracare Freshmint 16.32G      9
##        Ult.Costo Unidades F.Ticket NombreDepartamento NombreFamilia
## 200620      6.92        1   103100          Abarrotes      Dulcería
## 200621      6.92        1   116598          Abarrotes      Dulcería
## 200622      6.92        1   114886          Abarrotes      Dulcería
## 200623      6.92        1   114955          Abarrotes      Dulcería
## 200624      6.92        1   101121          Abarrotes      Dulcería
## 200625      6.92        1   100879          Abarrotes      Dulcería
##        NombreCategoria       Estado Mts.2 Tipo.ubicación       Giro Hora.inicio
## 200620 Gomas de Mazcar Quintana Roo    58        Esquina Mini súper       08:00
## 200621 Gomas de Mazcar Quintana Roo    58        Esquina Mini súper       08:00
## 200622 Gomas de Mazcar Quintana Roo    58        Esquina Mini súper       08:00
## 200623 Gomas de Mazcar Quintana Roo    58        Esquina Mini súper       08:00
## 200624 Gomas de Mazcar Quintana Roo    58        Esquina Mini súper       08:00
## 200625 Gomas de Mazcar Quintana Roo    58        Esquina Mini súper       08:00
##        Hora.cierre
## 200620       21:00
## 200621       21:00
## 200622       21:00
## 200623       21:00
## 200624       21:00
## 200625       21:00
library(janitor)
## Warning: package 'janitor' was built under R version 4.3.1
## 
## Attaching package: 'janitor'
## The following objects are masked from 'package:stats':
## 
##     chisq.test, fisher.test
library(dplyr)

count(df, vcClaveTienda, sort = TRUE)
##   vcClaveTienda     n
## 1         MX001 96469
## 2         MX004 83455
## 3         MX005 10021
## 4         MX002  6629
## 5         MX003  4051
count(df,DescGiro, sort= TRUE)
##     DescGiro      n
## 1  Abarrotes 100520
## 2 Carnicería  83455
## 3   Depósito  16650
#count(df,Fecha, sort= TRUE)
#count(df,Hora, sort= TRUE)
#count(df,Marca, sort= TRUE)
#count(df,Fabricante, sort= TRUE)
#count(df,Producto, sort= TRUE)
count(df,NombreDepartamento, sort= TRUE)
##     NombreDepartamento      n
## 1            Abarrotes 198279
## 2   Bebes e Infantiles   1483
## 3           Ferretería    377
## 4             Farmacia    255
## 5      Vinos y Licores    104
## 6            Papelería     74
## 7             Mercería     44
## 8 Productos a Eliminar      8
## 9               Carnes      1
#count(df,NombreFamilia, sort= TRUE)
#count(df,NombreCategoria, sort= TRUE)
count(df,Estado, sort= TRUE)
##         Estado     n
## 1   Nuevo León 96469
## 2      Sinaloa 83455
## 3 Quintana Roo 10021
## 4      Jalisco  6629
## 5      Chiapas  4051
count(df,Hora.inicio, sort= TRUE)
##   Hora.inicio      n
## 1       08:00 106490
## 2       07:00  87506
## 3       09:00   6629
count(df,Tipo.ubicación, sort= TRUE)
##   Tipo.ubicación      n
## 1        Esquina 189945
## 2        Rotonda   6629
## 3   Entre calles   4051
count(df,Giro, sort= TRUE)
##         Giro      n
## 1  Abarrotes 183975
## 2 Mini súper  16650
count(df,Hora.cierre,sort=TRUE)
##   Hora.cierre      n
## 1       22:00 103098
## 2       23:00  87506
## 3       21:00  10021
tabyl(df, vcClaveTienda, NombreDepartamento)
##  vcClaveTienda Abarrotes Bebes e Infantiles Carnes Farmacia Ferretería Mercería
##          MX001     95415                515      1      147        245       28
##          MX002      6590                 21      0        4         10        0
##          MX003      4026                 15      0        2          8        0
##          MX004     82234                932      0      102        114       16
##          MX005     10014                  0      0        0          0        0
##  Papelería Productos a Eliminar Vinos y Licores
##         35                    3              80
##          0                    0               4
##          0                    0               0
##         32                    5              20
##          7                    0               0

Con lo anterior, se encontraron las siguientes observaciones:
1. Hay +199,000 NA’s en PLU.
2. Fecha, hora, hora.inicio, hora.cierre no tienen formato correcto.
3. Existen precios negativos.
4. No se observó la variable ventas o subtotal.

###Limpiar la base de datos

####Remover valores irrelevantes

df2 <- subset (df, select = -c( PLU, Codigo.Barras))
summary(df2)
##  vcClaveTienda        DescGiro            Fecha               Hora          
##  Length:200625      Length:200625      Length:200625      Length:200625     
##  Class :character   Class :character   Class :character   Class :character  
##  Mode  :character   Mode  :character   Mode  :character   Mode  :character  
##                                                                             
##                                                                             
##                                                                             
##     Marca            Fabricante          Producto             Precio       
##  Length:200625      Length:200625      Length:200625      Min.   :-147.00  
##  Class :character   Class :character   Class :character   1st Qu.:  11.00  
##  Mode  :character   Mode  :character   Mode  :character   Median :  16.00  
##                                                           Mean   :  19.42  
##                                                           3rd Qu.:  25.00  
##                                                           Max.   :1000.00  
##    Ult.Costo         Unidades         F.Ticket      NombreDepartamento
##  Min.   :  0.38   Min.   : 0.200   Min.   :     1   Length:200625     
##  1st Qu.:  8.46   1st Qu.: 1.000   1st Qu.: 33964   Class :character  
##  Median : 12.31   Median : 1.000   Median :105993   Mode  :character  
##  Mean   : 15.31   Mean   : 1.262   Mean   :193990                     
##  3rd Qu.: 19.23   3rd Qu.: 1.000   3rd Qu.:383005                     
##  Max.   :769.23   Max.   :96.000   Max.   :450040                     
##  NombreFamilia      NombreCategoria       Estado              Mts.2     
##  Length:200625      Length:200625      Length:200625      Min.   :47.0  
##  Class :character   Class :character   Class :character   1st Qu.:53.0  
##  Mode  :character   Mode  :character   Mode  :character   Median :60.0  
##                                                           Mean   :56.6  
##                                                           3rd Qu.:60.0  
##                                                           Max.   :62.0  
##  Tipo.ubicación         Giro           Hora.inicio        Hora.cierre       
##  Length:200625      Length:200625      Length:200625      Length:200625     
##  Class :character   Class :character   Class :character   Class :character  
##  Mode  :character   Mode  :character   Mode  :character   Mode  :character  
##                                                                             
##                                                                             
## 
df3 <- df2
df3 <- df3[df3$Precio>0,]
  summary(df3)
##  vcClaveTienda        DescGiro            Fecha               Hora          
##  Length:200478      Length:200478      Length:200478      Length:200478     
##  Class :character   Class :character   Class :character   Class :character  
##  Mode  :character   Mode  :character   Mode  :character   Mode  :character  
##                                                                             
##                                                                             
##                                                                             
##     Marca            Fabricante          Producto             Precio       
##  Length:200478      Length:200478      Length:200478      Min.   :   0.50  
##  Class :character   Class :character   Class :character   1st Qu.:  11.00  
##  Mode  :character   Mode  :character   Mode  :character   Median :  16.00  
##                                                           Mean   :  19.45  
##                                                           3rd Qu.:  25.00  
##                                                           Max.   :1000.00  
##    Ult.Costo         Unidades         F.Ticket      NombreDepartamento
##  Min.   :  0.38   Min.   : 0.200   Min.   :     1   Length:200478     
##  1st Qu.:  8.46   1st Qu.: 1.000   1st Qu.: 33977   Class :character  
##  Median : 12.31   Median : 1.000   Median :106034   Mode  :character  
##  Mean   : 15.31   Mean   : 1.261   Mean   :194096                     
##  3rd Qu.: 19.23   3rd Qu.: 1.000   3rd Qu.:383062                     
##  Max.   :769.23   Max.   :96.000   Max.   :450040                     
##  NombreFamilia      NombreCategoria       Estado              Mts.2     
##  Length:200478      Length:200478      Length:200478      Min.   :47.0  
##  Class :character   Class :character   Class :character   1st Qu.:53.0  
##  Mode  :character   Mode  :character   Mode  :character   Median :60.0  
##                                                           Mean   :56.6  
##                                                           3rd Qu.:60.0  
##                                                           Max.   :62.0  
##  Tipo.ubicación         Giro           Hora.inicio        Hora.cierre       
##  Length:200478      Length:200478      Length:200478      Length:200478     
##  Class :character   Class :character   Class :character   Class :character  
##  Mode  :character   Mode  :character   Mode  :character   Mode  :character  
##                                                                             
##                                                                             
##

####Eliminar duplicados

df4 <- distinct(df3)

####Corregir errores

df5 <- ceiling(df4$Unidades)
summary(df5)
##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##   1.000   1.000   1.000   1.261   1.000  96.000

####Cambiar tipo de variable

df4$Fecha <- as.Date(df4$Fecha, format="%d/%m/%Y")
#tibble(df4$Fecha)

####Tratamiento de NA’s

sum(is.na(df))
## [1] 199188
sapply(df, function(x) sum(is.na(x)))
##      vcClaveTienda           DescGiro      Codigo.Barras                PLU 
##                  0                  0                  0             199188 
##              Fecha               Hora              Marca         Fabricante 
##                  0                  0                  0                  0 
##           Producto             Precio          Ult.Costo           Unidades 
##                  0                  0                  0                  0 
##           F.Ticket NombreDepartamento      NombreFamilia    NombreCategoria 
##                  0                  0                  0                  0 
##             Estado              Mts.2     Tipo.ubicación               Giro 
##                  0                  0                  0                  0 
##        Hora.inicio        Hora.cierre 
##                  0                  0

####Metodos estadisticos

boxplot(df$Precio, horizontal=TRUE)

boxplot(df$Unidades, horizontal=TRUE)

###Agregar columnas a la base de datos

df$subtotal <- df$Ult.Costo * df$Unidades
write.csv(df, file = "abarrotes_limpia.csv", row.names = FALSE)