Timeline for Repeat every $ x $ coordinate except the last one
Current License: CC BY-SA 4.0
15 events
| when toggle format | what | by | license | comment | |
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| Nov 28, 2020 at 3:06 | comment | added | creidhne | @user75507 - Riffle[list, x, {imin, imax, n}] creates a new list in which x appears if possible at positions imin, imin + n, imin + 2 n, ... , imax. Try va = Table[Subscript[a, i], {i, Range[5]}]; Riffle[va, x, {1, -3, 2}]. Riffle inserts x starting at position 1 and stops 3 positions from the end (the negative number says: count from the end of the list). When x is a list, Riffle uses items from the second list in place of x. With two identical lists, the result is the same as using Most@Riffle[list, list]. | |
| Nov 27, 2020 at 15:00 | comment | added | user75507 | Could you please explain that what does exactly these {1, -3, 2} numbers represents here ? | |
| Nov 26, 2020 at 4:44 | comment | added | kglr | using the third argument of Riffle (Riffle[ActCoorX, ActCoorX, {1, -3, 2}]) seems faster for large lists. (+1) | |
| Nov 26, 2020 at 4:38 | history | edited | creidhne | CC BY-SA 4.0 | highlight the answer after comments |
| Nov 25, 2020 at 13:18 | history | edited | creidhne | CC BY-SA 4.0 | include information from comments |
| Nov 25, 2020 at 13:04 | comment | added | user75507 | Yes. {x1, f[x1]}, {x1, f[x1]}, {x2, f[x2]}, {x2, f[x2]}, ... until the end without repeating the last item, this was the aim. | |
| Nov 25, 2020 at 13:00 | comment | added | creidhne | @user75507 - do you want {x1, f[x1]}, {x1, f[x1]}, {x2, f[x2]}, {x2, f[x2]}, ... until the end without repeating the last item? Or do you want to remove the last item like your Table example? | |
| Nov 25, 2020 at 12:54 | comment | added | user75507 | Most@Riffle[ActCoorX, ActCoorX] this works perfectly.thank you!! | |
| Nov 25, 2020 at 12:53 | comment | added | user75507 | yes , but then there is no repeatation of coordinates here. | |
| Nov 25, 2020 at 12:51 | history | edited | creidhne | CC BY-SA 4.0 | clarify - the list items are not coordinates |
| Nov 25, 2020 at 12:47 | vote | accept | user75507 | ||
| Nov 25, 2020 at 12:42 | history | edited | creidhne | CC BY-SA 4.0 | reply to comment |
| Nov 25, 2020 at 12:34 | comment | added | user75507 | Lets say i have , Table[{x, f[x]}, {x, 0, 12000, 595}] | |
| Nov 25, 2020 at 12:33 | comment | added | user75507 | Can i use this Riffle with Table? | |
| Nov 25, 2020 at 12:19 | history | answered | creidhne | CC BY-SA 4.0 |