R - object not found error when it exists - r

I am trying to understand why "R" cannot find a variable that is definitely in my dataframe.
Here is the dput for "DF.1" in my code below:
library("dplyr")
library("stringr")
DF.1 <- structure(list(`ID` = c("APP-5XUEJHC1XN-2019",
"APP-AVO1K5F33B-2019", "APP-J12JZHOWTM-2019", "APP-VROJDQSZ3P-2019",
"APP-00AURK6GEP-2019", "APP-00VACS4YZI-2018", "APP-00W7N0XXSO-2019",
"APP-01AQMLSHX6-2019", "APP-021R8JXC6O-2018", "APP-022XIXHHIQ-2019",
"APP-025ZNBC262-2018", "APP-02IUB6YJ05-2019", "APP-02PSFXZI1U-2019",
"APP-02TZN2M3JT-2019", "APP-034IPEAN7E-2018", "APP-03XWZT90ZW-2018",
"APP-040I2UPEEI-2019", "APP-0442F1YUCB-2019", "APP-04DKWB5EF3-2019",
"APP-04E58XMYDH-2018"), `Observations` = c("Single",
"Single", "Single", "Single", NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA, NA, NA, NA, NA, NA)), class = c("tbl_df", "tbl",
"data.frame"), row.names = c(NA, -20L))
DF.2 <- DF.1 %>% dplyr::mutate(
"New Var" = case_when(
str_detect(tolower(`Observations`), "single") ~ "Single Protocol",
str_detect(tolower(`Observations`), "multiple") |
!(str_detect(tolower(`Observations`), paste(c("single", "multiple"), collapse = '|'))) |
is.na(`Observations`) ~ "Multiple Protocol"))
When I run the above code, I get the following error:
Error in eval_tidy(pair$lhs, env = default_env) :
object 'Observations' not found
The variable is in the dataframe, so I am wondering if there is a conflict with either case_when or str_detect.

you need to assign the structure(...) piece to an object (DF.1 <- ...):
DF.1 <- structure(list(`ID` = c("APP-5XUEJHC1XN-2019",
"APP-AVO1K5F33B-2019", "APP-J12JZHOWTM-2019", "APP-VROJDQSZ3P-2019",
"APP-00AURK6GEP-2019", "APP-00VACS4YZI-2018", "APP-00W7N0XXSO-2019",
"APP-01AQMLSHX6-2019", "APP-021R8JXC6O-2018", "APP-022XIXHHIQ-2019",
"APP-025ZNBC262-2018", "APP-02IUB6YJ05-2019", "APP-02PSFXZI1U-2019",
"APP-02TZN2M3JT-2019", "APP-034IPEAN7E-2018", "APP-03XWZT90ZW-2018",
"APP-040I2UPEEI-2019", "APP-0442F1YUCB-2019", "APP-04DKWB5EF3-2019",
"APP-04E58XMYDH-2018"), `Observations` = c("Single",
"Single", "Single", "Single", NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA, NA, NA, NA, NA, NA)), class = c("tbl_df", "tbl",
"data.frame"), row.names = c(NA, -20L))

Related

r Replace multiple strings in a data frame column with multiple strings from a column of another data frame

I have a dataframe (df1) with a column "PartcipantID". Some ParticipantIDs are wrong and should be replaced with the correct ParticipantID. I have another dataframe (df2) where all Participant IDs appear in columns Goal_ID to T4. The Participant IDs in column "Goal_ID" are the correct IDs.
Now I want to replace all ParticipantIDs in df1 with all Goal_ID ParticipantIDs from df2.
This is my original dataframe (df1):
structure(list(Partcipant_ID = c("AA_SH_RA_91", "AA_SH_RA_91",
"AB_BA_PR_93", "AB_BH_VI_90", "AB_BH_VI_90", "AB_SA_TA_91", "AJ_BO_RA_92",
"AJ_BO_RA_92", "AK_SH_HA_91", "AL_EN_RA_95", "AL_MA_RA_95", "AL_SH_BA_99",
"AM_BO_AB_49", "AM_BO_AB_94", "AM_BO_AB_94", "AM_BO_AB_94", "AN_JA_AN_91",
"AN_KL_GE_11", "AN_KL_WO_91", "AN_MA_DI_95", "AN_MA_DI_95", "AN_SE_RA_95",
"AN_SE_RA_95", "AN_SI_RA_97", "AN_SO_PU_94", "AN_SU_RA_91", "AR_BO_RA_92",
"AR_KA_VI_94", "AR_KA_VI_94", "AS_AR_SO_90", "AS_AR_SU_95", "AS_KU_SO_90",
"AS_MO_AS_97", "AW_SI_OJ_97", "AW_SI_OJ_97", "AY_CH_SU_97", "BH_BE_LD_84",
"BH_BE_LI_83", "BH_BE_LI_83", "BH_BE_LI_84", "BH_KO_SA_87", "BH_PE_AB_89",
"BH_YA_SA_87", "BI_CH_PR_94", "BI_CH_PR_94"), Start_T2 = structure(c(NA,
NA, NA, NA, 1579514871, 1576658745, NA, 1579098225, NA, NA, 1576663067,
1576844759, NA, 1577330639, NA, NA, 1576693930, NA, NA, NA, NA,
NA, NA, NA, NA, NA, NA, 1577718380, 1577718380, 1577454467, NA,
NA, 1576352237, NA, NA, NA, NA, 1576420656, 1576420656, NA, NA,
1578031772, 1576872938, NA, NA), class = c("POSIXct", "POSIXt"
), tzone = "UTC"), End_T2 = structure(c(NA, NA, NA, NA, 1579515709,
1576660469, NA, 1579098989, NA, NA, 1576693776, 1576845312, NA,
1577331721, NA, NA, 1576694799, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA, 1577719049, 1577719049, 1577455167, NA, NA, 1576352397,
NA, NA, NA, NA, 1576421607, 1576421607, NA, NA, 1578032408, 1576873875,
NA, NA), class = c("POSIXct", "POSIXt"), tzone = "UTC")), row.names = c(NA,
45L), class = "data.frame")
And this is the reference data frame (df2):
structure(list(Goal_ID = c("AJ_BO_RA_92", "AL_EN_RA_95", "AM_BO_AB_49",
"AS_KU_SO_90", "BH_BE_LI_84", "BH_YA_SA_87", "BI_CH_PR_94", "BI_CH_PR_94"
), T2 = c("AJ_BO_RA_92", "AL_MA_RA_95", "AM_BO_AB_94", "AS_AR_SO_90",
"BH_BE_LI_83", "BH_YA_SA_87", "BI_NA_PR_94", "BI_NA_PR_94"),
T3 = c("AR_BO_RA_92", "AL_MA_RA_95", "AM_BO_AB_94", NA, "BH_BE_LI_83",
NA, "BI_CH_PR_94", "BI_CH_PR_94"), T4 = c("AJ_BO_RA_92",
"AL_MA_RA_95", "AM_BO_AB_94", NA, "BH_BE_LI_83", "BH_KO_SA_87",
"BI_CH_PR_94", "BI_CH_PR_94")), row.names = c(NA, -8L), class = c("tbl_df",
"tbl", "data.frame"))
For example, in my df1, I want
"AR_BO_RA_92" to be replaced by "AJ_BO_RA_92";
"AL_MA_RA_95" to be replaced by "AL_EN_RA_95";
"AM_BO_AB_94" to be replaced by "AM_BO_AB_49"
and so on...
I thought about using string_replace and I started with this:
df1$Partcipant_ID <- str_replace(df1$Partcipant_ID, "AR_BO_RA_92", "AJ_BO_RA_92")
But that is of course very unefficient because I have so many replacements and it would be nice to make use of my reference data frame. I just cannot figure it out myself.
I hope this is understandable. Please ask if you need additional information.
Thank you so much already!
You can use match to find where the string is located and excange those which have been found and are not NA like:
i <- match(df1$Partcipant_ID, unlist(df2[-1])) %% nrow(df2)
j <- !is.na(i)
df1$Partcipant_ID[j] <- df2$Goal_ID[i[j]]
df1$Partcipant_ID
# [1] "AA_SH_RA_91" "AA_SH_RA_91" "AB_BA_PR_93" "AB_BH_VI_90" "AB_BH_VI_90"
# [6] "AB_SA_TA_91" "AJ_BO_RA_92" "AJ_BO_RA_92" "AK_SH_HA_91" "AL_EN_RA_95"
#[11] "AL_MA_RA_95" "AL_SH_BA_99" "AM_BO_AB_49" "AM_BO_AB_94" "AM_BO_AB_94"
#[16] "AM_BO_AB_94" "AN_JA_AN_91" "AN_KL_GE_11" "AN_KL_WO_91" "AN_MA_DI_95"
#[21] "AN_MA_DI_95" "AN_SE_RA_95" "AN_SE_RA_95" "AN_SI_RA_97" "AN_SO_PU_94"
#[26] "AN_SU_RA_91" "AR_BO_RA_92" "AR_KA_VI_94" "AR_KA_VI_94" "AS_AR_SO_90"
#[31] "AS_AR_SU_95" "AS_KU_SO_90" "AS_MO_AS_97" "AW_SI_OJ_97" "AW_SI_OJ_97"
#[36] "AY_CH_SU_97" "BH_BE_LD_84" "BH_BE_LI_83" "BH_BE_LI_83" "BH_BE_LI_84"
#[41] "BH_KO_SA_87" "BH_PE_AB_89" "BH_YA_SA_87" "BI_CH_PR_94" "BI_CH_PR_94"
I think this might work. Create a true look up table with a column of correct and incorrect codes. I.e. stack the columns, then join the subsequent df3 to df1 and use coalesce to create a new part_id. You spelt participant wrong, which made me feel more human I always do that.
library(dplyr)
df3 <- df2[1:2] %>%
bind_rows(df2[c(1,3)] %>% rename(T2 = T3),
df2[c(1,4)] %>% rename(T2 = T4)) %>%
distinct()
df1 %>%
left_join(df3, by = c("Partcipant_ID" = "T2")) %>%
mutate(Goal_ID = coalesce(Goal_ID, Partcipant_ID)) %>%
select(Goal_ID, Partcipant_ID, Start_T2, End_T2)

linear regression model with dplyr on sepcified columns by name

I have the following data frame, each row containing four dates ("y") and four measurements ("x"):
df = structure(list(x1 = c(69.772808673525, NA, 53.13125414839,
17.3033274666411,
NA, 38.6120670385487, 57.7229000792707, 40.7654208618078, 38.9010405201831,
65.7108936694177), y1 = c(0.765671296296296, NA, 1.37539351851852,
0.550277777777778, NA, 0.83037037037037, 0.0254398148148148,
0.380671296296296, 1.368125, 2.5250462962963), x2 = c(81.3285388496182,
NA, NA, 44.369872853302, NA, 61.0746827226573, 66.3965114460601,
41.4256874481852, 49.5461413070349, 47.0936997726146), y2 =
c(6.58287037037037,
NA, NA, 9.09377314814815, NA, 7.00127314814815, 6.46597222222222,
6.2462962962963, 6.76976851851852, 8.12449074074074), x3 = c(NA,
60.4976916064608, NA, 45.3575294731303, 45.159758146854, 71.8459173097114,
NA, 37.9485456227131, 44.6307631013742, 52.4523342186143), y3 = c(NA,
12.0026157407407, NA, 13.5601157407407, 16.1213657407407, 15.6431018518519,
NA, 15.8986805555556, 13.1395138888889, 17.9432638888889), x4 = c(NA,
NA, NA, 57.3383407228293, NA, 59.3921356160536, 67.4231673171527,
31.853845252547, NA, NA), y4 = c(NA, NA, NA, 18.258125, NA,
19.6074768518519,
20.9696527777778, 23.7176851851852, NA, NA)), class = c("tbl_df",
"tbl", "data.frame"), row.names = c(NA, -10L))
I would like to create an additional column containing the slope of all the y's versus all the x's, for each row (each row is a patient with these 4 measurements).
Here is what I have so far:
df <- df %>% mutate(Slope = lm(vars(starts_with("y") ~
vars(starts_with("x"), data = .)
I am getting an error:
invalid type (list) for variable 'vars(starts_with("y"))'...
What am I doing wrong, and how can I calculate the rowwise slope?
You are using a tidyverse syntax but your data is not tidy...
Maybe you should rearrange your data.frame and rethink the way you store your data.
Here is how to do it in a quick and dirty way (at least if I understood your explanations correctly):
df <- merge(reshape(df[,(1:4)*2-1], dir="long", varying = list(1:4), v.names = "x", idvar = "patient"),
reshape(df[,(1:4)*2], dir="long", varying = list(1:4), v.names = "y", idvar = "patient"))
df$patient <- factor(df$patient)
Then you could loop over the patients, perform a linear regression and get the slopes as a vector:
sapply(levels(df$patient), function(pat) {
coef(lm(y~x,df[df$patient==pat,],na.action = "na.omit"))[2]
})

custom rmeta - forest plot generation does not work: " 'x' and 'units' must have length > 0"

I tried to generate a "forest plot" without summary estimates using the rmeta package. However, using ?forestplot and then starting from the description or the example does not help, I am always getting the same error. I would assume that it is a simple one that has to do with the matrix/vector lengths somewhat not lining up but I kept changing and adjusting and still cannot find the error...
Here is the example code:
tabletext<-cbind(c(NA, NA, NA, NA, NA, NA),
c(NA, NA, NA, NA, NA, NA),
c("variable1","subgroup","2nd", "3rd", "4th", "5th"),
c(NA,"mean","1.8683639", "2.5717301", "4.4966049, 9.0008054")
)
tabletext
png("forestplot.png")
forestplot(tabletext, mean = c(NA, NA, 1.8683639, 2.5717301, 4.4966049, 9.0008054), lower = c(NA, NA, 1.4604643, 2.0163468, 3.5197956, 6.9469213), upper = c(NA, NA, 2.3955105, 3.2897459, 5.7672966, 11.7288609),
is.summary = c(rep(FALSE, 6)), zero = 1, xlog=FALSE, boxsize=0.75, xticks = NULL, clip = c(0.9, 12))
dev.off()
Error message:
clip = c(0.9, 12))
Error in unit(rep(1, sum(widthcolumn)), "grobwidth", labels[[1]][widthcolumn]) :
'x' and 'units' must have length > 0
dev.off()
Any help is very much appreciated!
This works with the forestplot-package although you need to remove the xticks=NULL:
tabletext<-cbind(c(NA, NA, NA, NA, NA, NA),
c(NA, NA, NA, NA, NA, NA),
c("variable1","subgroup","2nd", "3rd", "4th", "5th"),
c(NA,"mean","1.8683639", "2.5717301", "4.4966049, 9.0008054")
)
png("forestplot.png")
forestplot(tabletext,
mean = c(NA, NA, 1.8683639, 2.5717301, 4.4966049, 9.0008054),
lower = c(NA, NA, 1.4604643, 2.0163468, 3.5197956, 6.9469213),
upper = c(NA, NA, 2.3955105, 3.2897459, 5.7672966, 11.7288609),
is.summary = c(rep(FALSE, 6)), zero = 1,
xlog=FALSE, boxsize=0.75, clip = c(0.9, 12))
dev.off()
Gives (I recommend some polishing before submitting for publishing):

How to create a proper dataset for boxplots

I'm having trouble to create a proper boxplot of my dataset. All of the solutions on this platform don't work because their dataset all look different with variables against each other.
So I want to ask: how do I need to format my dataset if it only contains 3 variables and their measured values in 3 columns. In the boxplot examples here, they plot a variable against another one but here this is not the case right?
Using boxplot(data) gives me 3 boxplots. But I want to show the MEAN and also the population size on each boxplot. I don't know how to use the solution as they are all about ggplot2 or boxplot with variables against each other.
I know that this must be simple, but I think I'm plotting the boxplots on a bad method and that's why the solutions on this site don't work?
Data:
structure(list(Rest = c(3.479386607, 3.478445796, 2.52227462,
1.726115552, 3.917693859, 2.300840122), Peat = c(16.79515746,
22.76673699, 24.43289941, 15.64168939, 31.60459098, 16.2369787
), Top.culture = c(8.288, 8.732, 5.199, 6.539, 3.248, 10.156)), .Names = c("Rest",
"Peat", "Top.culture"), row.names = c(NA, 6L), class = "data.frame")
If text annotation is what is meant by 'show the mean and also the population size' then:
boxplot(dat)
text(1:3, 12.5, paste( "Mean= ",round(sapply(dat,mean, na.rm=TRUE), 2),
"\n N= ",
sapply(dat, function(x) length( x[!is.na(x)] ) )
) )
This used your more complex data-object from the other (duplicated) question.
dat <- structure(list(Rest = c(3.479386607, 3.478445796, 2.52227462, 1.726115552, 3.917693859, 2.300840122, 2.326307503, 2.344828287, 4.654278623, 3.68669447, 3.343706863, 0.712228306, 2.735897248, 1.936723375, 2.724260325, 2.069633651, 1.741484154, 2.304391217, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA), Peat = c(16.79515746, 22.76673699, 24.43289941, 15.64168939, 31.60459098, 16.2369787, 32.63285246, 35.91852324, 19.27802839, 21.78974576, 30.39119451, 35.4846573, 42.21807817, 42.00913743, 40.96996704, 19.85075354, 17.247096, 22.81689524, 43.35990368, 37.57273508, 23.76889902, 38.34604591, 20.98376674, 16.44173119, 17.27639888, NA, NA, NA, NA, NA, NA), Top.culture = c(8.288, 8.732, 5.199, 6.539, 3.248, 10.156, 3.436, 5.584, 4.483, 2.087, 3.28, 2.71, 2.196, 4.971, 4.475, 6.361, 5.49, 9.085, 3.52, 5.772, 9.308, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA)), .Names = c("Rest", "Peat", "Top.culture" ), class = "data.frame", row.names = c(NA, -31L))

How to change xticks locations and customize legend using levelplot (lattice library)

I am trying to move the position of x-ticks and x-labels from the bottom of the figure to its top.
In addition, my data has a bunch of NAs. Currently, levelplot just remove them and leave them as white space in the plot. I wondering if it is possible to add this NAs to the legend as well.
Any suggestions? Thanks!
Here is my code and its output:
require(lattice)
# see data from dput() below
rownames(data)=data[,1]
data_matrix=as.matrix(data[,2:11])
color = colorRampPalette(rev(c("#D73027", "#FC8D59", "#FEE090", "#FFFFBF", "#E0F3F8", "#91BFDB", "#4575B4")))(100)
levelplot(data_matrix, scale=list(x=list(rot=45)), ylab="Days", xlab="Strains", col.regions = color)
Data
data <-
structure(list(X = structure(1:17, .Label = c("Arcobacter", "Bacillus",
"Bordetella", "Campylobacter", "Chlamydia", "Clostridium ", "Corynebacterium",
"Enterococcus", "Escherichia", "Francisella", "Legionella", "Mycobacterium",
"Pseudomonas", "Rickettsia", "Staphylococcus", "Streptococcus",
"Treponema"), class = "factor"), day.0 = c(NA, -3.823301154,
NA, NA, NA, -3.518606107, NA, NA, NA, NA, NA, -4.859479387, NA,
NA, NA, -2.588402346, -2.668136603), day.2 = c(-4.006281239,
-3.024823788, NA, -5.202804501, NA, -3.237622321, NA, NA, -5.296138823,
-5.105469059, NA, NA, -4.901775198, NA, NA, -2.979144202, -3.050083791
), day.4 = c(-2.880770182, -3.210165554, -4.749097175, -5.209064234,
NA, -2.946480184, NA, -5.264113795, -5.341881713, -4.435780293,
NA, -4.810650076, -4.152531609, NA, NA, -3.106172794, -3.543161966
), day.6 = c(-2.869833226, -3.293283924, -3.831346387, NA, NA,
-3.323947791, NA, NA, NA, NA, NA, -4.397581863, -4.068855504,
NA, NA, -3.27028378, -3.662618619), day.8 = c(-3.873589331, -3.446192193,
-3.616207965, NA, NA, -3.13869325, NA, -5.010807453, NA, NA,
NA, -4.091502649, -4.412399025, -4.681675749, NA, -3.404738625,
-3.955464159), day.15 = c(-5.176583159, -2.512963066, -3.392832457,
NA, NA, -3.194662968, NA, -3.60440455, NA, NA, -4.875554468,
-2.507376205, -4.727255906, -5.27116754, -3.200499549, -3.361296145,
-4.320554841), day.22 = c(-4.550052847, -3.654013004, -3.486879661,
NA, NA, -3.614890858, NA, NA, NA, NA, -4.706690492, -2.200533317,
-4.836957953, NA, -4.390423731, NA, NA), day.29 = c(-4.730006329,
-3.46707372, -3.594457287, NA, NA, -3.800757834, NA, NA, NA,
NA, -4.285154089, -2.121152491, -4.816807055, -5.064577888, -2.945243736,
-4.479177287, -5.226435146), day.43 = c(-4.398680025, -3.144603215,
-3.642065153, NA, NA, -3.8268662, NA, NA, NA, NA, -4.762539208,
-2.156862316, -4.118608495, NA, -4.030291084, -4.678213147, NA
), day.57 = c(-4.689982547, -2.713502214, -3.51279797, NA, -5.069579266,
-3.495580794, NA, NA, NA, NA, -4.515973639, -1.90591075, -4.134826117,
-4.479351427, -3.482134037, -4.538534489, NA)), .Names = c("X",
"day.0", "day.2", "day.4", "day.6", "day.8", "day.15", "day.22",
"day.29", "day.43", "day.57"), class = "data.frame", row.names = c("Arcobacter",
"Bacillus", "Bordetella", "Campylobacter", "Chlamydia", "Clostridium ",
"Corynebacterium", "Enterococcus", "Escherichia", "Francisella",
"Legionella", "Mycobacterium", "Pseudomonas", "Rickettsia", "Staphylococcus",
"Streptococcus", "Treponema"))
Figure
The request to move the labels to the top is pretty easy (after looking at the ?xyplot under the scales section):
levelplot(data_matrix, scale=list(x=list(rot=45,alternating=2)),
ylab="Days", xlab="Strains", col.regions = color)
Trying to get the NA values into the color legend may take a bit more thinking, but it seems as though sensible values for the colorkey arguments for at and col might suffice.
levelplot(data_matrix, scale=list(x=list(rot=45,alternating=2)),
ylab="Days", xlab="Strains", col.regions = color,
colorkey=list(at=as.numeric( factor( c( seq(-5.5, -2, by=0.5),
"NA"))),
labels=as.character( c( seq(-5.5, -2, by=0.5),
"NA")),
col=c(color, "#FFFFFF") ) )

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