如何利用pandas库有条件的去除空白行

2023-06-06sad creeper

在网上查阅了很多资料就是无法删除,也不报错,在此做一个全面的笔记!

首先读excel文件时注意一个参数keep_default_na=False,这个参数是转换excel表中空白单元格变为空,如果read_excel这个函数没有这个参数就很难实现

源代码如下:

import pandas as pd

result = pd.read_excel(r'D:\pythonTest\xxx.xlsx', keep_default_na=False)


# 去除目标组为空的
result.dropna(axis='index', how='all', inplace=False)
result = result[result.目标组 != '']

result.to_excel('xxx1.xlsx', index=False)

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By following this guide and training constantly, you’ll construct the strength, power, and coordination needed to carry out this spectacular movement with confidence and precision. What is the Benefit of The Hanging Squat Snatch Technique? The hanging squat snatch helps enhance your pulling power and technique from the next position. It focuses on the explosive part of the carry and can enhance your total snatch efficiency. The snatch — which could be accomplished with a barbell, dumbbell, or kettlebell — entails flinging weight from the bottom all the way overhead in one fluid movement. In other words, these movements are outstanding for transferring skills to other domains. This variation permits for related motion patterns and benefits, while also improving unilateral energy and coordination. The squat snatch is great for growing full-body power, energy, and coordination. It’s notably beneficial for athletes looking to enhance their Olympic lifting efficiency and overall athletic abilities. Choose up an empty barbell (or a PVC pipe) and follow moving very little or no weight with good form. "It's such a technical motion you could spend your complete lifetime getting somewhat bit higher at it day-by-day, week-by-week, and year-by-year and still have something to improve," says Wickham. Prior to the exercise, I spoke to Greg about a few of the different ways to do the work, and he determined to experiment. He was constantly in entrance of me, so I was in a position to watch him muscle-snatch a lot of the reps within the early rounds, and then at reps 10 and above on the later rounds, he transitioned to a power snatch. The deadlift also usually has extra carryover into "real-life" actions, too. Suppose about how often you bend over to pick up one thing heavy off the bottom, like your groceries. The deadlift trains us for more day-to-day actions you would not sometimes think of as exertions of strength. "Welcome to the gym equal of Godzilla vs. King Kong," says Ebenezer Samuel, C.S.C.S., MH fitness director. Improperly performing a snatch can lead to accidents like pulled muscular tissues and hyperextension of joints. Improper type features a grip or foot stance that is too broad or too narrow, utilizing the incorrect grip, extending the body too early, or not extending the knees and hips together. "The snatch also can help build energy, explosiveness, speed, physique consciousness, and coordination," says Rouse. As Wickham says, "Just think about how highly effective your legs have to be and how rapidly you must move to get a heavy barbell overhead." A technique that’s slower than the earlier methodology could be bringing the weight right down to the grasp position (around the hip area), then bringing it to the deck. "A qualified coach will know the method to educate, cue, and proper any movement's imperfections," she explains. As I already mentioned, Amanda is hard benchmark WOD, and never many individuals can end it unbroken in first rate time. Don’t worry and scale it as it's going to benefit you more than finishing it with time over 15 minutes. Often, you'll have the ability to keep one of many actions you're better as RXd and scale solely the one you're weak at. This is your last set, and it's only 5 reps but don’t go unbroken in case you are not 100% positive you are capable of do it. Remaining stationary will let you cycle the reps in the fastest way potential. Relying on the rep scheme and load, the muscle snatch can be some of the taxing methods to do that movement. Trying to maintain a fast pace for very high-rep workouts may not be worth the toll it takes in your system for later reps. For fastest turnover of reps with light hundreds, bringing the load straight down from an overhead place is the quickest way. Snatches use momentum to raise a barbell above your head in a fluid motion. It’s a dynamic movement requiring a solid core and managed steadiness. Break your sets into smaller mini-sets with brief relaxation intervals in between. For occasion, as a substitute of doing 6 reps constantly, you'll find a way to carry out 2 reps, relaxation for 10 seconds, then repeat. Start with a lighter weight and better reps. With each subsequent set, enhance the load and reduce the reps. This methodology is great for muscle energy and hypertrophy. Sergii Putsov, Ph.D., is a former skilled weightlifter and Nationwide team member, attaining a quantity of medals in the ninety four kg weight class at national competitions. With a Master’s degree in "Olympic & Skilled Sport Training" and a Sport Science Ph.D. from the Worldwide Olympic Academy, Greece, Sergii now leads because the Head of Sport Science. After performing an exercise to failure with a selected weight, reduce the burden instantly and continue until failure once more. This enhances muscle endurance and stimulates progress. This involves oscillating the weights in a wave-like sample. This technique can truly be very quick in execution, and you save power by removing the eccentric phase of the lift (bringing the burden down). If you intend on doing a high-rep snatch exercise and you are going to drop every rep, think about which bumper plates you employ (if you could have options). Colored Kraiburg plates have rather more bounce than Hi-Temp bumpers (the recycled rubber ones), and also you don’t wish to fear about chasing the bar round. Stable steel plates would have the least bounce, however I don’t beneficial utilizing them. "In CrossFit, grasp snatches often seem in a workout utilizing mild weight, to be able to transfer the bar quick, and crank up your heart price," he says. The preceding workouts ought to be carried out precisely as written. Athletes can obtain large physical and psychological rewards for grinding through the movement and doing what's prescribed, and 30 squat snatches at 135 lb. The similar method, although, just isn't essentially needed when dealing with light masses. F. Land in a quarter squat (feet shoulders-width aside, toes slightly turned out), whereas moving quickly into an overhead squat place under the bar. We then have the athlete carry out overhead squats for 2 to three sets of five to ten reps. The snatch is basically the precise reverse of movements like the hamstring curl and bicep curl, which only work one muscle group at a time. "The snatch is a complex and dynamic movement that engages virtually each muscle group in the body," says USA weightlifter, kettlebell coach, and private coach Rebecca Rouse. One of the most effective choices on high-rep, high-load snatch exercises is to finish the motion in singles. In CrossFit competitions, we're not seeing a strong correlation between the completion instances for high-rep snatch and clean workouts and the environment friendly use of traditional strategies. Some of the fastest times include "great technique," but many don't. The snatch variation that you'll see most frequently in CrossFit? "You can power snatch or squat snatch a barbell," says Milgram. "However the way you prioritize them in your program will change based mostly on your objectives and other components." Can the Extensive Grip Spacing Irritate My Shoulders When Squat Snatching? Yes, a large grip can place extra stress on the shoulders, particularly in case you have limited shoulder mobility or pre-existing shoulder points. It’s necessary to warm up correctly and guarantee you have adequate mobility. If you are planning to hitch a CrossFit box, the coaches there will be capable of train you tips on how to do all of them. If not, hiring a coach that can assist you grasp the snatch movement is highly beneficial by Rouse. From this point, we now progress to the subsequent idea. We like to show how the knees transfer but newbies and beginners don’t understand how the knees move. So one thing we love to do is use isometric muscular motion. The thought is to drive them to pause at positions to turn out to be extra conversant in proper techniques. At this point, if the athlete is athletic sufficient or aware sufficient, we are able to start cueing the toes sliding out. We don’t need their ft jumping all over the place. So with the snatch grip established, have the athlete put the bar overhead. In this place, we will have the athlete carry out the standing snatch press for 2 to three units of five to ten reps. We do this as a end result of we want to trigger the catch positions. We need the athlete to grasp that when they are catching what their shoulders need to do. F) Finish the motion by straightening knees and hips absolutely earlier than initiating one other repetition. "Anyone who's prepared to put in the work to learn the snatch can reap the mobility and energy advantages of the moment," he says. Arguably probably the most technical movement in CrossFit, the snatch requires slightly finesse to drag (pun absolutely intended!) off. Inform them the hips come via, keep up on the toes, and rotate the implement into place. This motion also will get the athlete into the plantarflexed ankles. This 4-week squat program offers a holistic method to strengthening your squat. Incorporating power, power, method, and restoration, it’s meticulously crafted for both newcomers and seasoned lifters. For instance, 3 sets the place weights increase after which lower. This can confuse the muscles, spurring growth and strength. E) When the bell passes chest height, drop under the load to land in 1 / 4 squat, elbow completely locked out. A) Start with the loaded barbell on the bottom with bar over toes. Toes should be about hip-width apart, toes slightly turned out. If your objective is glute, hamstring, and again features, the deadlift should take the top spot. Sure, the squat utilizes these muscle groups too, however the deadlift places more of an emphasis via the posterior chain than the squat does. Guaranteeing correct timing and method is essential to overcoming this problem. The squat snatch is an Olympic carry where you carry a barbell from the ground to overhead in one continuous movement whereas dropping right into a squat. It checks your strength, pace, flexibility, and coordination. These two items could be completed in LESS THAN two minutes and you will be a lot heat. Moreover, if these drills are accomplished daily (and correctly), you must see great gains in growing proficiency in the snatch and overhead squat. F. Finish the motion by straightening knees and hips fully earlier than initiating another repetition. "Anybody who's keen to place within the work to learn the snatch can reap the mobility and energy advantages of the second," says Wickham. You will not at all times have time for both in your workout, although. The decision of which to prioritize is decided by your body type and your objectives. You may also discover that you simply're better at one or the other, so you may naturally gravitate toward your strengths. A. Stand with toes hips-width apart, kettlebell between toes and lined up with shoelaces. A. Stand with ft hips-width aside, with a dumbbell horizontal on the ground between toes. Same recommendation as for the set of 9 muscle ups nonetheless applies. You are in the course of the workout, and also you don’t wish to fatigue yourself an extreme quantity of so be sensible on muscle ups. C) Grip the bell with an overhand grip, then shift hips up in the direction of the ceiling so that your chest is over the weight. (If you've ever seen a rugby or soccer participant in the hike place, it will look familiar). B) Reaching proper arm straight down, hinge hips again and bend at knees right into a squat. Athletes clobbering across the ground on their arms, cranking out one-legged pistol squats, and gracefully flinging their our bodies over pull-up bars. There's no shortage of folks doing badass exercises in a CrossFit box at any given time. But maybe essentially the most epic of them all is the snatch. They're one of many major movers of knee flexion and extension, which is the chief mechanic in squats. What is the Most Typical Downside When Squat Snatching? A frequent drawback when squat snatching is an early arm bend, which may scale back the ability of the carry.

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