logo
Tags down

shadow

A function to fill in a column with NA of the same type


By : user2175296
Date : October 15 2020, 08:10 PM
it fixes the issue I have a data frame with many columns of different types. I would like to replace each column with NA of the corresponding class. , You can use this "trick" :
code :
df[1:nrow(df),1] <- NA
df[1:nrow(df),2] <- NA
rowIdxs <- 1:nrow(df)
df[rowIdxs ,1] <- NA
df[rowIdxs ,2] <- NA
df[rowIdxs ,3] <- NA
...
df[TRUE, 1] <- NA
df[TRUE, 2] <- NA
...
df[TRUE, 1:3] <- NA
# or
df[1:nrow(df), 1:3] <- NA


Share : facebook icon twitter icon

excel vba ,to insert a new column to the length of the column next to it and type Ck DUP in column c and fill column B


By : iris
Date : March 29 2020, 07:55 AM
it should still fix some issue I have tried to insert an new column and then insert a value ck dup and use fill down to fill in the column.The number of rows should be equal to the number of rows in Previous column. , Try the below:
code :
Sub InsertColumn()
Dim lLastRow As Long
    lLastRow = Range("B" & Application.Rows.Count).End(xlUp).Row
    Columns("C:C").Insert Shift:=xlToRight, CopyOrigin:=xlFormatFromLeftOrAbove
    If lLastRow < 2 Then
        MsgBox "Last Row is less then 2. Nothing to fill"
    Else
        Range("C2:C" & lLastRow) = "ck dup"
    End If
End Sub

How to fill in a column with a function of another?


By : Puru S Badukale
Date : March 29 2020, 07:55 AM
To fix this issue You can use pd.Series.fillna to fill in missing values:
code :
df['day_charge'] = df['day_charge'].fillna(df['day_mins'] * 0.17)

Spark dataframe na.fill boolean column type


By : user1394243
Date : March 29 2020, 07:55 AM
wish of those help na.fill Boolean type is added at version 2.3.0 and previous versions don't support filling Boolean type column. See the API specs here.

Is there an R function to fill NA value of a column in a specific way?


By : garzooma
Date : March 29 2020, 07:55 AM
I wish this help you So I have a data frame like this : , Not a direct function but something like this would work
code :
#Get indices for NA non-zero values
inds1 <- is.na(df$Result) & df$Value2 != 0
#Get indices for NA zero values
inds2 <- is.na(df$Result) & df$Value2 == 0

#Replace them
df$Result[inds1] <- df$Value1[inds1]/df$Value2[inds1]
df$Result[inds2] <- 0

substring function return column type instead of a value. Is there a way to fetch a value out of column type in pyspark


By : user3150147
Date : March 29 2020, 07:55 AM
may help you . I am comparing a condition with pyspark join in my application by using substring function. This function is returning a column type instead of a value. , creating a sample dataframes to join
code :
    list1 = [('ABC','abcdefghijklmno'),('XYZ','abcdefghijklmno'),('DEF','abcdefghijklabc')]
    df1=spark.createDataFrame(list1, ['col1', 'col2'])


    list2 = [(1,'mno'),(2,'mno'),(3,'abc')]
    df2=spark.createDataFrame(list2, ['col1', 'col2'])


import pyspark.sql.functions as f
cond=f.substring(df1['col2'], -3, 3)==df2['col2']
newdf=df1.join(df2,cond)

>>> newdf.show()
+----+---------------+----+----+
|col1|           col2|col1|col2|
+----+---------------+----+----+
| ABC|abcdefghijklmno|   1| mno|
| ABC|abcdefghijklmno|   2| mno|
| XYZ|abcdefghijklmno|   1| mno|
| XYZ|abcdefghijklmno|   2| mno|
| DEF|abcdefghijklabc|   3| abc|
+----+---------------+----+----+
Related Posts Related Posts :
  • Error connecting to mongoDB using Mongolite
  • R: networkD3 sankey plot - colours not displaying
  • Merging two rows into one header using R
  • Parse JSON to dataframe returns different numbers
  • How to number by group?
  • Multinomial probit regression with mixed type explanatory variables
  • How can I make a variable in a dataset containing a vector of all numbers between two other variables?
  • How to extract the trailing digits from a string in R?
  • Select values based on other columns
  • readLines killing R in purrr::map
  • Subset rows based on "start and stop" strings
  • How to add a column to lists within a list without losing their names?
  • Plotting the means in ggplot, without using stat_summary()
  • R :Looping through each 5 rows of data frame and imputing incremental value
  • In R, is growing a list just as inefficient as growing a vector?
  • Flexdashboard, rhandsontable: how to programmatically access user updated table?
  • Creating Summary Table from R Variables
  • Average over groups and include previous groups
  • R: data.table count rows on specific columns > 0
  • Transform (shuffle) just 2 Fields in a Dataframe
  • Issue with replacing string by match in R
  • (very) Simple quantstrat trading model using logistic regression
  • R - count maximum number of consecutive dates
  • Problems using tidyr separate on "|"
  • Default value when calling a function in a for loop
  • Finding values in a matrix from list of values in R
  • count 0's in a zoo (or dataframe) object
  • Finding the first non-zero year in data frame for multiple variables using tidyverse
  • ggplot2 - how to assign geom_text with arrow icon to second yaxis scale
  • regex fails with dollar sign
  • Drop first element of list of lists, condense list of lists? Too many elements?
  • R - how to apply output of ifelse(str_detect ...) to whole group
  • caret package confusion matrix define positive case with multiple classes
  • Generating a pairwise 'distance' matrix
  • Change all R columns names using a reference file
  • In R & dabestr, how do I get grouped differences correctly?
  • Exclude or set a unique color to the bottom triangle of a correlation matrix heatmap
  • r shiny observe function clears text input
  • Split column by multiple delimiters, keeping delimiters
  • How to random search in a specified grid in caret package?
  • merge 2 data frames in a loop for each column in one of them
  • how to edit the codes for the summary of R S4 Object?
  • Remove specific rows in R
  • Flatten JSON list into data frame
  • Filtering a dataset and making a ggplot
  • Align cells vertically to be at the bottom flextable
  • R speed up sapply
  • invalid subscript type 'list' Azure Machine Learning
  • Use rollapply with xts object and an anonymous defined function
  • Isolate data frames from a spreadsheet to create a list
  • Error in xts, as.POSIXct "'order.by' cannot contain 'NA', 'NaN', or 'Inf'"
  • Column splitting in R
  • number similar/duplicated rows in R
  • Count the number of times each value appears in a row dataframe r
  • how to vectorise my code in r using for loop?
  • Network flow balancing constraint in R
  • Adding main titles from list to graphs in for loop
  • create a matrix in Perl or R if data is provided in CSV file
  • Passing column names as string to with
  • R - filtering rows and summing
  • shadow
    Privacy Policy - Terms - Contact Us © voile276.org