multiple-columns

问题 I would like to read and store scientific formatted numbers from a txt file, which is formatted and the numbers are separated by tabulator. This is what I have so far: IMPLICIT NONE REAL,ALLOCATABLE,DIMENSION(2) :: data(:,:) INTEGER :: row,column INTEGER :: j,i CHARACTER(len=30) :: filename CHARACTER(len=30) :: format filename='data.txt' open(86,file=filename,err=10) write(*,*)'open data file' read(86, *) row read(86, *) column allocate(data(row,column)) format='(ES14.7)' do i=1,row read(86

问题 I have a matrix with two columns, one of which is the date and another of which is a quantity that I have to perform some operations on. I wanted to add a third column to my existing matrix. I was going to go about this by formulating the third column as a column vector, and then adding it on to my existing matrix (although I am not sure how to add another column onto a matrix either- any help would be much appreciated!) For my third column, I wanted to divide 399 by the (180,2) element in my

问题 I want to created a Tree with multi-columns. I found this tutorial here (German) and this answer (English). I want to add checkboxes in one column, but I have no idea how to do it. When I return a checkbox to JTreeTable , something show in execute is checkbox detail not checkbox object. How can I get something like this, pictured below? 回答1: As shown in Taking the New Swing Tree Table for a Spin , cited here, your implementation of RowModel must return the correct type from getColumnClass()

问题 I have a grid of headlines in newspaper format using CSS3 column count. http://jsfiddle.net/L6TTJ/ HTML: <ul> <li><h3><a href='#'>heading</a></h3><p>snippet</p></li> <li><h3><a href='#'>heading</a></h3><p>snippet</p></li> <!-- ... etc ... --> </ul> CSS (vendor prefixes and non-pertinent rules omitted for brevity) : ul { column-count: 3; column-rule: 1px solid #ccc; } li { border-bottom: solid 1px #ccc; } You can see where this is going: is there any means in CSS to target the last li element

问题 Say I have the following dataframe: A 0 Me 1 Myself 2 and 3 Irene 4 Me, Myself, and Irene which needs to be turned into: Me Myself and Irene 0 1 0 0 0 1 0 1 0 0 2 0 0 1 0 3 0 0 0 1 4 1 1 1 1 Looking for any suggestion. 回答1: You can use get_dummies with reindex by all possible categories: df1 = pd.DataFrame({'A': ['Me', 'Myself', 'and', 'Irene']}) df2= pd.DataFrame({'A': ['Me', 'Myself', 'and']}) df3 = pd.DataFrame({'A': ['Me', 'Myself', 'or', 'Irene']}) all_categories = pd.concat([df1.A, df2

问题 Scenario: I am in the process of moving an application from access to C# and on one of the forms(in access) the user is able to select a drop down that has 3 columns (ID, FirstName, LastName). Once they select from the list the ID is displayed on the drop down. Question: Is it possible to recreate this functionality using a combo box? What alternatives can you suggest? EDIT: alt text http://www.freeimagehosting.net/uploads/7acfb7bb8b.jpg Dropdown is on the top left, a text box is next to it

问题 I've been figuring this out for a couple of hours now. Let's say I have a column with 1-4 words, separated by space: aba bkak absbs a2aj akls bios sad fasa lgk . . . I would like those words to be in separate columns, for easier further processing. SO instead those words are in one column, how do I get them to separate columns? Thanks for any help. 回答1: Try library(splitstackshape) cSplit(df1, 'V1', ' ') Or library(tidyr) separate(df1, 'V1', paste0('V', 1:4), sep= ' ', extra='drop') Or using

问题 I'm trying to compare column 1 from file1 and column 3 from file 2, if they match then print the first column from file1 and the two first columns from file2. here's a sample from each file: file1 Cre01.g000100 Cre01.g000500 Cre01.g000650 file2 chromosome_1 71569 |655|Cre01.g000500|protein_coding|CODING|PAC:26902937|1|1) chromosome_1 93952 |765|Cre01.g000650|protein_coding|CODING|PAC:26903448|11|1) chromosome_1 99034 |1027|Cre01.g000100 |protein_coding|CODING|PAC:26903318|9|1) desired output

问题 I have a dataframe z and I want to create the new column based on the values of two old columns of z . Following is the process: >z<-cbind(x=1:10,y=11:20,t=21:30) > z<-as.data.frame(z) >z x y t 1 1 11 21 2 2 12 22 3 3 13 23 4 4 14 24 5 5 15 25 6 6 16 26 7 7 17 27 8 8 18 28 9 9 19 29 10 10 20 30 # generate the column q which is equal to the values of column t times 4 if x=3 and for other values of x , it is equal to the values of column t . for (i in 1:nrow(z)){ z$q[i]=if (z$x[i]==4) 4*z$t[i]

问题 Is it possible to some how setup IntelliJ IDEA so that I can column select with the cursor keys similarly to how I might in Notepad++, Visual Studio, or FlashDevelop. For instance when I'm typing code I almost always do my navigation solely through use of the keyboard. In the IDEs mentioned previously I can quickly select blocks of code by holding Shift + Alt then tapping ↑ to extend my cursor across the lines above. I can then hold Shift + Alt + Ctrl and tap ← or → to quickly jump across