multiple-columns

问题 I'm trying to to make a script that reads from a nosql and inserts into a SQL Server database. That said I'm reading collections dynamically, so I need something to do things like var columns = [ 1, 2, 3, 4 ...] var values = [a, b, c ,4 ...] request.query("INSERT INTO TABLE (" + [columns] + ") VALUES ( " [values] ");" I have some collections with up to like 27 columns and I can't hog the database by inserting each value as I have like 20.000.000 registers to do... can't find anything that can

问题 I'm trying to divide an events list into 2 columns. When I do a simple column-count , I can't seem to get them to align at the top. What am I missing here?? The domain is here <div id="eventssection"> <img id="eventheader" src="/images/calendar.png"> <div id="calendarcol"> <?php echo do_shortcode('[events]'); ?> </div> <img id="eventmore" src="/images/moreevents.png"> </div> #calendarcol { -webkit-column-count: 2; -moz-column-count: 2; column-count: 2; -webkit-column-width: 15em; -moz-column

问题 I'm trying to divide an events list into 2 columns. When I do a simple column-count , I can't seem to get them to align at the top. What am I missing here?? The domain is here <div id="eventssection"> <img id="eventheader" src="/images/calendar.png"> <div id="calendarcol"> <?php echo do_shortcode('[events]'); ?> </div> <img id="eventmore" src="/images/moreevents.png"> </div> #calendarcol { -webkit-column-count: 2; -moz-column-count: 2; column-count: 2; -webkit-column-width: 15em; -moz-column

问题 everyone - I want to preface this by saying that I already looked at this link to try to solve my problem: Applying the same factor levels to multiple variables in an R data frame The difference is that in that problem, the OP wanted to change the levels of factors that all had the same levels. In my instance, I'm looking to change just the first level, which is set to ' ', to something like 'Unknown' and leave the rest of the levels alone. I know I could do this in a "non-R" way with

问题 df = pd.DataFrame({'a':[1,4], 'b':[7,8]}) print (df) a b 0 1 7 1 4 8 I try add % to columns names, so use DataFrame.add_prefix print (df.add_prefix('%')) TypeError: not all arguments converted during string formatting What can be problem? How is possible use add_prefix function with % ? Or it is only bug? Notice : Possible solution is like: df.columns = ['%' + col for col in df.columns] print (df) %a %b 0 1 7 1 4 8 but I am interested about function add_prefix . 回答1: NOTE: This is likely to

问题 I have a list of 185 data frames called WaFramesNumeric . Each dataframe has several hundred columns and thousands of rows. I want to edit every data frame, so that it leaves all numeric columns as well as any non-numeric columns that I specify. Using: for(i in seq_along(WaFramesNumeric)) { WaFramesNumeric[[i]] <- WaFramesNumeric[[i]][,sapply(WaFramesNumeric[[i]],is.numeric)] } successfully makes each dataframe contain only its numeric columns. I've tried to amend this with lines to add

问题 I have a list of 185 data frames called WaFramesNumeric . Each dataframe has several hundred columns and thousands of rows. I want to edit every data frame, so that it leaves all numeric columns as well as any non-numeric columns that I specify. Using: for(i in seq_along(WaFramesNumeric)) { WaFramesNumeric[[i]] <- WaFramesNumeric[[i]][,sapply(WaFramesNumeric[[i]],is.numeric)] } successfully makes each dataframe contain only its numeric columns. I've tried to amend this with lines to add

问题 I want to create a table with dynamic number of columns in android I know how to add rows dynamically using LayoutInflator but how to add columns dynamically? Thank you for your time any help is highly appreciated. 回答1: you dont add columns - only rows and after that you can tell every view how many columns need to span android:layout_span Defines how many columns this child should span. Must be >= 1. Must be an integer value, such as "100". This may also be a reference to a resource (in the

问题 I would like to make boxplots of the following: Example data: > head(df2) Results Capacity Power LDI LDE LB PDC D 1 2 3 4 5 6 7 8 9 1 ImpactDCNoV2GYesDC 1 PG11 LDI6 LDE0 LB0.045 PDC0 D10 1 NA NA NA NA NA NA NA NA 2 ImpactDCNoV2GYesDC 0.95 PG11 LDI5 LDE0 LB0.045 PDC0.25 D10 2 2 6 7 9 NA NA NA NA 3 ImpactDCNoV2GYesDC 0.9 PG11 LDI1 LDE0 LB0.045 PDC0.50 D10 5 3 NA NA NA NA NA NA NA 4 ImpactDCNoV2GYesDC 0.85 PG11 LDI6 LDE0 LB0.045 PDC0.75 D10 8 6 NA 8 NA NA NA NA NA 5 ImpactDCNoV2GYesDC 0.8 PG11

问题 I have two columns on my page. The left column is one long list, the right is smaller. When I scroll up and down I want the right column to float with the page not be static. I've managed to get this working using this css: .connected { min-height:100px; float: left; width: 200px; } .connected.right { position: fixed; min-height:100px; height: auto; float: right; } and can be seen here on this FIDDLE. The issue I have is if the right column is long, then it doesn't move at all and the bottom