R: Error in heatmap(data) : 'x' must be a numeric matrix. Which 'x' is it referring to?












-1















I am trying to create a heatmap in R. This is my dataset:



Team, Att_L, Att_M, Att_R,
Aston Villa, 0.37, 0.24, 0.39
Birmingham City, 0.34, 0.26, 0.4
Blackburn Rovers, 0.38, 0.26, 0.36
Bolton Wanderers, 0.32, 0.27, 0.41
Brentford, 0.34, 0.28, 0.38
Bristol City, 0.37, 0.26, 0.37
Derby County, 0.34, 0.26, 0.4
Hull City, 0.38, 0.21, 0.41
Ipswich Town, 0.33, 0.24, 0.43
Leeds United, 0.37, 0.24, 0.39
Middlesbrough, 0.37, 0.25, 0.38
Millwall, 0.3, 0.24, 0.46
Norwich City, 0.36, 0.24, 0.4
Nottingham Forest, 0.37, 0.22, 0.41
Preston North End, 0.35, 0.26, 0.39
Queens Park Rangers, 0.35, 0.24, 0.41
Reading, 0.37, 0.23, 0.4
Rotherham United, 0.38, 0.27, 0.35
Sheffield United, 0.41, 0.21, 0.38
Sheffield Wednesday, 0.37, 0.29, 0.34
Stoke City, 0.36, 0.25, 0.39
Swansea City, 0.38, 0.24, 0.38
West Bromwich Albion, 0.38, 0.25, 0.37
Wigan Athletic, 0.38, 0.24, 0.38


It starts off as a tibble called Pitch_axis. I convert this to a table and use gather() to get the data ready for the heatmap.



 data2 <- as.data.table(gather(Pitch_axis, variable, value, Att_L:Att_R))


Then I try to run heatmap() on it:



 heatmap(data2)


This returns the error:



>Error in heatmap(data2) : 'x' must be a numeric matrix


I don't understand this from two directions: 1. I don't understand which variable is 'x' 2. I tried converting to a matrix and all the observations came out in double "", so presumably as strings.



Any ideas how to fix this?










share|improve this question




















  • 1





    For the error message, see ?heatmap and take a look at the first argument of the function. And for the second question: A matrix can only contain variables of a single type. Try matrix(c(1, 2, "C"), 1) and you'll see the first two elements will be coerced to characters, just like in your case (because of the Team column).

    – markus
    Jan 19 at 12:07
















-1















I am trying to create a heatmap in R. This is my dataset:



Team, Att_L, Att_M, Att_R,
Aston Villa, 0.37, 0.24, 0.39
Birmingham City, 0.34, 0.26, 0.4
Blackburn Rovers, 0.38, 0.26, 0.36
Bolton Wanderers, 0.32, 0.27, 0.41
Brentford, 0.34, 0.28, 0.38
Bristol City, 0.37, 0.26, 0.37
Derby County, 0.34, 0.26, 0.4
Hull City, 0.38, 0.21, 0.41
Ipswich Town, 0.33, 0.24, 0.43
Leeds United, 0.37, 0.24, 0.39
Middlesbrough, 0.37, 0.25, 0.38
Millwall, 0.3, 0.24, 0.46
Norwich City, 0.36, 0.24, 0.4
Nottingham Forest, 0.37, 0.22, 0.41
Preston North End, 0.35, 0.26, 0.39
Queens Park Rangers, 0.35, 0.24, 0.41
Reading, 0.37, 0.23, 0.4
Rotherham United, 0.38, 0.27, 0.35
Sheffield United, 0.41, 0.21, 0.38
Sheffield Wednesday, 0.37, 0.29, 0.34
Stoke City, 0.36, 0.25, 0.39
Swansea City, 0.38, 0.24, 0.38
West Bromwich Albion, 0.38, 0.25, 0.37
Wigan Athletic, 0.38, 0.24, 0.38


It starts off as a tibble called Pitch_axis. I convert this to a table and use gather() to get the data ready for the heatmap.



 data2 <- as.data.table(gather(Pitch_axis, variable, value, Att_L:Att_R))


Then I try to run heatmap() on it:



 heatmap(data2)


This returns the error:



>Error in heatmap(data2) : 'x' must be a numeric matrix


I don't understand this from two directions: 1. I don't understand which variable is 'x' 2. I tried converting to a matrix and all the observations came out in double "", so presumably as strings.



Any ideas how to fix this?










share|improve this question




















  • 1





    For the error message, see ?heatmap and take a look at the first argument of the function. And for the second question: A matrix can only contain variables of a single type. Try matrix(c(1, 2, "C"), 1) and you'll see the first two elements will be coerced to characters, just like in your case (because of the Team column).

    – markus
    Jan 19 at 12:07














-1












-1








-1








I am trying to create a heatmap in R. This is my dataset:



Team, Att_L, Att_M, Att_R,
Aston Villa, 0.37, 0.24, 0.39
Birmingham City, 0.34, 0.26, 0.4
Blackburn Rovers, 0.38, 0.26, 0.36
Bolton Wanderers, 0.32, 0.27, 0.41
Brentford, 0.34, 0.28, 0.38
Bristol City, 0.37, 0.26, 0.37
Derby County, 0.34, 0.26, 0.4
Hull City, 0.38, 0.21, 0.41
Ipswich Town, 0.33, 0.24, 0.43
Leeds United, 0.37, 0.24, 0.39
Middlesbrough, 0.37, 0.25, 0.38
Millwall, 0.3, 0.24, 0.46
Norwich City, 0.36, 0.24, 0.4
Nottingham Forest, 0.37, 0.22, 0.41
Preston North End, 0.35, 0.26, 0.39
Queens Park Rangers, 0.35, 0.24, 0.41
Reading, 0.37, 0.23, 0.4
Rotherham United, 0.38, 0.27, 0.35
Sheffield United, 0.41, 0.21, 0.38
Sheffield Wednesday, 0.37, 0.29, 0.34
Stoke City, 0.36, 0.25, 0.39
Swansea City, 0.38, 0.24, 0.38
West Bromwich Albion, 0.38, 0.25, 0.37
Wigan Athletic, 0.38, 0.24, 0.38


It starts off as a tibble called Pitch_axis. I convert this to a table and use gather() to get the data ready for the heatmap.



 data2 <- as.data.table(gather(Pitch_axis, variable, value, Att_L:Att_R))


Then I try to run heatmap() on it:



 heatmap(data2)


This returns the error:



>Error in heatmap(data2) : 'x' must be a numeric matrix


I don't understand this from two directions: 1. I don't understand which variable is 'x' 2. I tried converting to a matrix and all the observations came out in double "", so presumably as strings.



Any ideas how to fix this?










share|improve this question
















I am trying to create a heatmap in R. This is my dataset:



Team, Att_L, Att_M, Att_R,
Aston Villa, 0.37, 0.24, 0.39
Birmingham City, 0.34, 0.26, 0.4
Blackburn Rovers, 0.38, 0.26, 0.36
Bolton Wanderers, 0.32, 0.27, 0.41
Brentford, 0.34, 0.28, 0.38
Bristol City, 0.37, 0.26, 0.37
Derby County, 0.34, 0.26, 0.4
Hull City, 0.38, 0.21, 0.41
Ipswich Town, 0.33, 0.24, 0.43
Leeds United, 0.37, 0.24, 0.39
Middlesbrough, 0.37, 0.25, 0.38
Millwall, 0.3, 0.24, 0.46
Norwich City, 0.36, 0.24, 0.4
Nottingham Forest, 0.37, 0.22, 0.41
Preston North End, 0.35, 0.26, 0.39
Queens Park Rangers, 0.35, 0.24, 0.41
Reading, 0.37, 0.23, 0.4
Rotherham United, 0.38, 0.27, 0.35
Sheffield United, 0.41, 0.21, 0.38
Sheffield Wednesday, 0.37, 0.29, 0.34
Stoke City, 0.36, 0.25, 0.39
Swansea City, 0.38, 0.24, 0.38
West Bromwich Albion, 0.38, 0.25, 0.37
Wigan Athletic, 0.38, 0.24, 0.38


It starts off as a tibble called Pitch_axis. I convert this to a table and use gather() to get the data ready for the heatmap.



 data2 <- as.data.table(gather(Pitch_axis, variable, value, Att_L:Att_R))


Then I try to run heatmap() on it:



 heatmap(data2)


This returns the error:



>Error in heatmap(data2) : 'x' must be a numeric matrix


I don't understand this from two directions: 1. I don't understand which variable is 'x' 2. I tried converting to a matrix and all the observations came out in double "", so presumably as strings.



Any ideas how to fix this?







r






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 19 at 12:58









NelsonGon

2,2661625




2,2661625










asked Jan 19 at 11:55









Mr_Percy_HeatMr_Percy_Heat

13




13








  • 1





    For the error message, see ?heatmap and take a look at the first argument of the function. And for the second question: A matrix can only contain variables of a single type. Try matrix(c(1, 2, "C"), 1) and you'll see the first two elements will be coerced to characters, just like in your case (because of the Team column).

    – markus
    Jan 19 at 12:07














  • 1





    For the error message, see ?heatmap and take a look at the first argument of the function. And for the second question: A matrix can only contain variables of a single type. Try matrix(c(1, 2, "C"), 1) and you'll see the first two elements will be coerced to characters, just like in your case (because of the Team column).

    – markus
    Jan 19 at 12:07








1




1





For the error message, see ?heatmap and take a look at the first argument of the function. And for the second question: A matrix can only contain variables of a single type. Try matrix(c(1, 2, "C"), 1) and you'll see the first two elements will be coerced to characters, just like in your case (because of the Team column).

– markus
Jan 19 at 12:07





For the error message, see ?heatmap and take a look at the first argument of the function. And for the second question: A matrix can only contain variables of a single type. Try matrix(c(1, 2, "C"), 1) and you'll see the first two elements will be coerced to characters, just like in your case (because of the Team column).

– markus
Jan 19 at 12:07












2 Answers
2






active

oldest

votes


















0














Try this? Solely representative!



library(tidyverse)
df<-as.tibble(df)
df<-df %>%
gather("id","value",2:ncol(.))

df2<-matrix(df$value,4,8)


heatmap(df2,labRow=df$Team,labCol = df$id)





share|improve this answer































    0














    I eventually got this.



            ggplot(data2, aes(Team, variable)) +
    geom_tile(aes(fill = value), color = "white") +
    scale_fill_gradient(low = "yellow", high = "red") +
    ylab("") +
    xlab("") +
    theme(legend.title = element_text(size = 10),
    legend.text = element_text(size = 12),
    plot.title = element_text(size=16),
    axis.title=element_text(size=14,face="bold"),
    axis.text.x = element_text(angle = 90, hjust = 1)) +
    ggtitle("Attack more down left, right or centre?",
    subtitle = "") +
    labs(fill = "%age") +
    coord_flip()





    share|improve this answer























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      2 Answers
      2






      active

      oldest

      votes








      2 Answers
      2






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      0














      Try this? Solely representative!



      library(tidyverse)
      df<-as.tibble(df)
      df<-df %>%
      gather("id","value",2:ncol(.))

      df2<-matrix(df$value,4,8)


      heatmap(df2,labRow=df$Team,labCol = df$id)





      share|improve this answer




























        0














        Try this? Solely representative!



        library(tidyverse)
        df<-as.tibble(df)
        df<-df %>%
        gather("id","value",2:ncol(.))

        df2<-matrix(df$value,4,8)


        heatmap(df2,labRow=df$Team,labCol = df$id)





        share|improve this answer


























          0












          0








          0







          Try this? Solely representative!



          library(tidyverse)
          df<-as.tibble(df)
          df<-df %>%
          gather("id","value",2:ncol(.))

          df2<-matrix(df$value,4,8)


          heatmap(df2,labRow=df$Team,labCol = df$id)





          share|improve this answer













          Try this? Solely representative!



          library(tidyverse)
          df<-as.tibble(df)
          df<-df %>%
          gather("id","value",2:ncol(.))

          df2<-matrix(df$value,4,8)


          heatmap(df2,labRow=df$Team,labCol = df$id)






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Jan 19 at 12:05









          NelsonGonNelsonGon

          2,2661625




          2,2661625

























              0














              I eventually got this.



                      ggplot(data2, aes(Team, variable)) +
              geom_tile(aes(fill = value), color = "white") +
              scale_fill_gradient(low = "yellow", high = "red") +
              ylab("") +
              xlab("") +
              theme(legend.title = element_text(size = 10),
              legend.text = element_text(size = 12),
              plot.title = element_text(size=16),
              axis.title=element_text(size=14,face="bold"),
              axis.text.x = element_text(angle = 90, hjust = 1)) +
              ggtitle("Attack more down left, right or centre?",
              subtitle = "") +
              labs(fill = "%age") +
              coord_flip()





              share|improve this answer




























                0














                I eventually got this.



                        ggplot(data2, aes(Team, variable)) +
                geom_tile(aes(fill = value), color = "white") +
                scale_fill_gradient(low = "yellow", high = "red") +
                ylab("") +
                xlab("") +
                theme(legend.title = element_text(size = 10),
                legend.text = element_text(size = 12),
                plot.title = element_text(size=16),
                axis.title=element_text(size=14,face="bold"),
                axis.text.x = element_text(angle = 90, hjust = 1)) +
                ggtitle("Attack more down left, right or centre?",
                subtitle = "") +
                labs(fill = "%age") +
                coord_flip()





                share|improve this answer


























                  0












                  0








                  0







                  I eventually got this.



                          ggplot(data2, aes(Team, variable)) +
                  geom_tile(aes(fill = value), color = "white") +
                  scale_fill_gradient(low = "yellow", high = "red") +
                  ylab("") +
                  xlab("") +
                  theme(legend.title = element_text(size = 10),
                  legend.text = element_text(size = 12),
                  plot.title = element_text(size=16),
                  axis.title=element_text(size=14,face="bold"),
                  axis.text.x = element_text(angle = 90, hjust = 1)) +
                  ggtitle("Attack more down left, right or centre?",
                  subtitle = "") +
                  labs(fill = "%age") +
                  coord_flip()





                  share|improve this answer













                  I eventually got this.



                          ggplot(data2, aes(Team, variable)) +
                  geom_tile(aes(fill = value), color = "white") +
                  scale_fill_gradient(low = "yellow", high = "red") +
                  ylab("") +
                  xlab("") +
                  theme(legend.title = element_text(size = 10),
                  legend.text = element_text(size = 12),
                  plot.title = element_text(size=16),
                  axis.title=element_text(size=14,face="bold"),
                  axis.text.x = element_text(angle = 90, hjust = 1)) +
                  ggtitle("Attack more down left, right or centre?",
                  subtitle = "") +
                  labs(fill = "%age") +
                  coord_flip()






                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Jan 23 at 13:01









                  Mr_Percy_HeatMr_Percy_Heat

                  13




                  13






























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